National gallery portrait list:
- (Hugo) Alvar Henrik Aalto (1898-1976), Finnish architect. 1 Portrait
- Richard Ithamar Aaron (1901-1987), Professor of Philosophy. 1 Portrait
- Reverend Aaron (circa 1698-1745), First Indian preacher. 2 Portraits
- Ruth Hughes Aarons (1910-1980), Table tennis champion. 3 Portraits
- Sir Carl Douglas Aarvold (1907-1991), Judge and Recorder of London. 3 Portraits
- Abbas II (1874-1944), Khedive of Egypt and Sudan, 1892-1914. 1 Portrait
- James Abbe (1883-1973), American photographer. 4 Portraits
- Michael Abbensetts (1938-2016), Playwright. 1 Portrait
- Lady Ursula Helen Abbey (née Cairns) (1899-1988), Dog breeder and croquet player; wife of John Roland Abbey; daughter of 4th Earl of Cairns. 4 Portraits
- Edwin Austin Abbey (1852-1911), American illustrator and painter. 5 Portraits
- Sir George Abbiss (1884-1966), Police commissioner. 6 Portraits
- Dame Elsie Myrtle Abbot (1907-1983), Third Secretary, HM Treasury. 1 Portrait
- George Abbot (1562-1633), Archbishop of Canterbury. 22 Portraits
- Mordecai Abbot (1657-1700), Receiver General of the customs. 1 Portrait
- Robert Abbot (1560-1617), Bishop of Salisbury. 14 Portraits
- Russ Abbot (Russell Roberts) (1947-), Comedian. 1 Portrait
- William Abbot of Canterbury. 1 Portrait
- William Abbot (1789-1843), Actor. 5 Portraits
- Hon. Charles Stuart Anthony Rowland Abbott (1909-1928), Son of 4th Baron Tenterden. 2 Portraits
- David Abbott (1938-2014), Advertising agency director. 1 Portrait
- Diane Julie Abbott (1953-), Labour politician; MP for Hackney North and Stoke Newington. 4 Portraits
- Edwin Abbott Abbott (1838-1926), Teacher and scholar. 3 Portraits
- Eric Symes Abbott (1906-1983), Dean of Westminster. 4 Portraits
- Sir Frederick Abbott (1805-1892), Army officer in the East India Company. 1 Portrait
- Henry Pryor Almon Abbott (1881-1945), American Anglican Bishop of Lexington, Kentucky. 1 Portrait
- Herbert Edward Stacy Abbott (1855-1939), Colonel. 4 Portraits
- Sir James Abbott (1807-1896), General. 1 Portrait
- Lemuel Francis Abbott (circa 1760-1802), Portrait painter. 1 Portrait
- William Abbott (1891-1963), Mechanical engineer. 1 Portrait
- Elva Abbott-Watt (née Clare-Gibson) (circa 1917-1977), Wife of Samuel Abbott-Watt. 6 Portraits
- Ibrahim Abboud (1900-1983), Sudanese army officer and politician. 1 Portrait
- Jaurar Ben Abdallah (active mid 17th century), Lord Chamberlain, privy seal and Prime Minister to the Emperor of Morocco. 1 Portrait
- Abdul Hamid II, Sultan of the Ottoman Empire (1842-1918), Reigned 1876-1909. 5 Portraits
- Iman Mohamed Abdulmajid (1955-), Model. 1 Portrait
- Alhaji Abdulmalik, Nigerian High Commissioner. 2 Portraits
- Abdülmecid I, Sultan of the Ottoman Empire (1823-1861), Reigned 1839-61. 1 Portrait
- Abdur Rahman Khan, Emir of Afghanistan (died 1901), Reigned 1880-1901. 1 Portrait
- (Helen) Diana (née Bridgeman), Lady Abdy (1907-1967), Fashion leader; wife of Sir Robert Henry Abdy; daughter of 5th Earl of Bradford. 13 Portraits
- Hariot (née Alston), Lady Abdy (1819-1877), Wife of Sir Thomas Neville Abdy, 1st Bt; daughter of Rowland Alston. 2 Portraits
- Iya (née de Gay), Lady Abdy (1897-1993), Socialite; first wife of Sir Robert Abdy, 5th Bt; daughter of George de Gay. 5 Portraits
- Arthur William à Beckett (1844-1909), Humorist. 1 Portrait
- Gilbert Abbott à Beckett (1811-1856), Comic writer. 1 Portrait
- Arthur Lawrence Abel (1895-1978), Consulting surgeon. 2 Portraits
- Sir Frederick Augustus Abel, 1st Bt (1827-1902), Chemist and explosives expert. 8 Portraits
- Karl Friedrich Abel (1723-1787), Composer and concert impresario. 5 Portraits
- Robert ('Bobby') Abel (1857-1936), Cricketer. 1 Portrait
- Eduardo Abela (1892-1965), Cuban painter and caricaturist. 1 Portrait
- Sir George Edmond Brackenbury Abell (1904-1989), First civil service commissioner. 1 Portrait
- Sir Westcott Stile Abell (1877-1961), Naval architect and surveyor. 2 Portraits
- William Abell (1584-circa 1655), English vinter; Alderman of London. 5 Portraits
- Lady May Helen Emma Abel Smith (née Cambridge) (1906-1994), Wife of Sir Henry Abel Smith; daughter of 1st Earl of Athlone and Princess Alice of Albany; great-granddaughter of Queen Victoria. 34 Portraits
- Desmond Abel Smith (1892-1974), Major and director. 5 Portraits
- Sir Edward Michael Conolly Abel Smith (1899-1985), Vice-Admiral. 10 Portraits
- Sir Henry Abel Smith (1900-1993), Army officer and colonial administrator. 7 Portraits
- Reginald Henry Macaulay Abel Smith (1890-1964), Captain and High Sheriff of Hertfordshire. 1 Portrait
- Charles Benjamin Bright McLaren, 1st Baron Aberconway (1850-1934), Barrister, industrialist and politician. 10 Portraits
- Christabel Mary Melville (née Macnaghten), Lady Aberconway (1890-1974), Art collector; wife of 2nd Baron Aberconway. 1 Portrait
- Charles Melville McLaren, 3rd Baron Aberconway (1913-2003), Barrister and company director. 19 Portraits
- Ann Lindsay (née Aymer), Lady Aberconway (1924-), Second wife of 3rd Baron Aberconway. 3 Portraits
- James Hamilton, 1st Duke of Abercorn (1811-1885), Landowner and politician; Lord Lieutenant of Ireland. 13 Portraits
- Louisa Jane (née Russell), Duchess of Abercorn (1812-1905), Wife of 1st Duke of Abercorn; daughter of 6th Duke of Bedford. 6 Portraits
- James Hamilton, 2nd Duke of Abercorn (1838-1913), Diplomat and politician; MP for County Donegal. 5 Portraits
- James Albert Edward Hamilton, 3rd Duke of Abercorn (1869-1953), Soldier and politician, Governor of Northern Ireland. 13 Portraits
- James Edward Hamilton, 4th Duke of Abercorn (1904-1979), Army officer and Member of Government of Northern Ireland. 8 Portraits
- Mary Kathleen (née Crichton), Duchess of Abercorn (1905-1990), Mistress of the Robes to Queen Elizabeth, the Queen Mother; wife of 4th Duke of Abercorn; daughter of Henry William Crichton, Viscount Crichton. 3 Portraits
- George Francis Abercrombie (1896-1978), Surgeon-Captain. 2 Portraits
- John Abercrombie (1780-1844), Physician. 1 Portrait
- Lascelles Abercrombie (1881-1938), Poet and critic. 2 Portraits
- Nigel James Abercrombie (1908-1986), Freelance writer and Professor of French. 1 Portrait
- Sir (Leslie) Patrick Abercrombie (1879-1957), Architect and town planner. 6 Portraits
- John Abercromby, 5th Baron Abercromby (1841-1924), Archaeologist. 1 Portrait
- Alexander Abercromby, Lord Abercromby (1745-1795), Lord Commissioner of Justiciary for Scotland. 1 Portrait
- Hon. Diamond Evelyn Violet Abercromby (née Hardinge) (1900-1927), Daughter of 1st Baron Hardinge of Penshurst. 6 Portraits
- Sir George Abercromby Abercromby, 4th Bt (1750-1831), Advocate. 1 Portrait
- Sir John Abercromby (1772-1817), General. 4 Portraits
- Sir Ralph Abercromby (1734-1801), General. 15 Portraits
- Miss Abercromby (active early 1860s). 1 Portrait
- Henry Austin Bruce, 1st Baron Aberdare (1815-1895), Politician, Home Secretary and Lord President of the Council. 12 Portraits
- Henry Campbell Bruce, 2nd Baron Aberdare (1851-1929), Academic. 3 Portraits
- Constance Mary (née Beckett), Lady Aberdare (1855-1932), Wife of 2nd Baron Aberdare; daughter of Hamilton Beckett. 1 Portrait
- Clarence Napier Bruce, 3rd Baron Aberdare (1885-1957), Military officer, cricketer, tennis player and member of the International Olympics Committee. 12 Portraits
- Morys George Lyndhurst Bruce, 4th Baron Aberdare (1919-2005), Deputy Speaker of the House of Lords. 1 Portrait
- Maud Helen Sarah Bruce (née Dashwood), Lady Aberdare (1924-2007), Wife of 4th Baron Aberdare; daughter of Sir John Dashwood, 10th Bt. 1 Portrait
- George Hamilton Gordon, 4th Earl of Aberdeen (1784-1860), Prime Minister. 50 Portraits
- Catherine Elizabeth Gordon (née Hamilton), Countess of Aberdeen (1784-1812), Wife of 4th Earl of Aberdeen. 1 Portrait
- Mary (née Baillie), Countess of Aberdeen (1814-1900), Daughter of George Baillie; wife of 5th Earl of Aberdeen. 3 Portraits
- John Campbell Hamilton-Gordon, 1st Marquess of Aberdeen and Temair (1847-1934), Statesman. 23 Portraits
- Dame Ishbel Maria (née Marjoribanks), Marchioness of Aberdeen and Temair (1857-1939), Promoter and patron of social service enterprises. 16 Portraits
- George Gordon, 2nd Marquess of Aberdeen and Temair (1879-1965), Businessman and Justice of the Peace. 10 Portraits
- Mary Florence Gordon (née Clixby), Marchioness of Aberdeen and Temair (1857-1937), Former wife of Edward Shepherd Cockayne, and later wife of 2nd Marquess of Aberdeen and Temair; daughter of Joseph Clixby. 8 Portraits
- Dudley Gladstone Gordon, 3rd Marquess of Aberdeen and Temair (1883-1972), Engineer. 11 Portraits
- William Nevill, 1st Marquess of Abergavenny (1826-1915), Statesman. 9 Portraits
- Caroline (née Vanden-Bempde-Johnstone), Marchioness of Abergavenny (1826-1892), Wife of 1st Marquess of Abergavenny; daughter of Sir John Vanden-Bempde-Johnstone, 2nd Bt. 1 Portrait
- Henry Gilbert Ralph Nevill, 3rd Marquess of Abergavenny (1854-1938), Lieutenant-Colonel. 1 Portrait
- Mary Frances (née Nevill), Marchioness of Abergavenny (1869-1954), Former wife of 3rd Viscount Hardinge, and later wife of 3rd Marquess of Abergavenny; daughter of Hon. Ralph Nevill. 2 Portraits
- Isabel Nellie Larnach-Nevill (née Larnach), Marchioness of Abergavenny (died 1953), Daughter of James Walker Larnach; wife of 4th Marquess of Abergavenny. 1 Portrait
- John Henry Guy Nevill, 5th Marquess Abergavenny (1914-2000), Company director. 1 Portrait
- Henry Nevill, 2nd Earl of Abergavenny (1755-1843), Secretary to the Treasury and politician; MP for Seaford and Monmouthshire. 2 Portraits
- Caroline (née Leeke), Countess of Abergavenny (died 1873), Wife of 4th Earl of Abergavenny; daughter of Ralph Leeke. 1 Portrait
- John Abernethy (1680-1740), Dissenting minister. 3 Portraits
- John Abernethy (1764-1831), Surgeon and teacher. 10 Portraits
- Charles Coupar Barrie, 1st Baron Abertay (1875-1940), Politician and businessman. 2 Portraits
- Ola Abidogun (1993-), Sprinter; Paralympian. 1 Portrait
- Montague Bertie, 6th Earl of Abingdon (1808-1884), Politician; MP for Oxfordshire. 1 Portrait
- Montagu Arthur Bertie, 7th Earl of Abingdon (1836-1928). 1 Portrait
- James Scarlett, 1st Baron Abinger (1769-1844), Chief Baron of the Exchequer. 17 Portraits
- Elizabeth (née Steere), Lady Abinger (circa 1802-1886), Former wife of Henry John Ridley, and later second wife of 1st Baron Abinger; daughter of Lee Steere Steere. 1 Portrait
- William Frederick Scarlett, 3rd Baron Abinger (1826-1892), Army officer and landowner. 1 Portrait
- Helen (née Magruder), Lady Abinger (died 1915), Wife of 3rd Baron Abinger; daughter of George Allan Magruder. 1 Portrait
- Lila Lucy Catherine Mary (née White), Lady Abinger (died 1941), Former wife of Kammerherr C.E. de Geijer, and later wife of 5th Baron Abinger; daughter of Sir William A. White. 7 Portraits
- Jean Marguerite (née Japy), Lady Abinger (1869-1954), Former wife of Adolphe Steinheil, and later wife of 6th Baron Abinger; daughter of Edouard Japy. 2 Portraits
- Hugh Richard Scarlett, 7th Baron Abinger (1878-1943), Lieutenant-Colonel. 1 Portrait
- James Richard Scarlett, 8th Baron Abinger (1914-2002), Lieutenant-Colonel. 8 Portraits
- Frances Abington (née Barton) (1737-1815), Actress. 17 Portraits
- Hayward Seller Ablewhite (1887-1964), American Anglican Bishop of Marquette, Michigan. 1 Portrait
- Sir William de Wiveleslie Abney (1843-1920), Photographic scientist and education official. 5 Portraits
- Baron Kiyokazu Abo (1870-1940), Admiral. 1 Portrait
- Edmond François Valentin About (1828-1885), Novelist, publicist and journalist. 3 Portraits
- Charles John Abraham (1814-1903), Bishop of Wellington, New Zealand. 1 Portrait
- Charles Thomas Abraham (1857-1945), Bishop Suffragan of Derby. 1 Portrait
- Sir Edward Abraham (1913-1999), Pathologist. 1 Portrait
- Fahrid Murray Abraham (1939-), Actor. 1 Portrait
- Gerald Ernest Heal Abraham (1904-1988), Musicologist. 1 Portrait
- James Johnston Abraham (1876-1963), Surgeon and writer. 9 Portraits
- Sir John Bradley Abraham (1881-1945), Civil servant. 6 Portraits
- Juliet Jane Margaretta Abraham (née Moynihan) (1934-), Wife of Thomas Edwin Bidwell Abraham; daughter of 2nd Baron Moynihan. 1 Portrait
- Philip Selwyn Abraham (1897-1955), Bishop of Newfoundland. 1 Portrait
- William Abraham (1840-1915), Irish politician; MP for several constituencies. 1 Portrait
- Sir William Ernest Victor Abraham (1897-1980), Major-General. 11 Portraits
- Sir Adolphe Abrahams (1883-1967), Consulting physician. 7 Portraits
- George Abrahams (circa 1800-1867), Pastor of Providence Chapel, City Road, London. 1 Portrait
- Gerald Abrahams (1907-1980), Barrister, lecturer and author. 6 Portraits
- Harold Maurice Abrahams (1899-1978), Sprinter; Olympian. 4 Portraits
- Ivor Abrahams (1935-2015), Artist. 4 Portraits
- Sir Lionel Abrahams (1869-1919), Financial secretary. 1 Portrait
- Sir Sidney Solomon Abrahams (1885-1957), Colonial judicial administrator and long jumper; Olympian. 12 Portraits
- Sir Martin Arnold Abrahamson (1870-1962), Director. 1 Portrait
- Sir George Stewart Abram (1866-1928), Physician; Mayor of Reading. 4 Portraits
- Mark Alexander Abrams (Max Alexander Abramowitz) (1906-1994), Social scientist. 1 Portrait
- Dannie Abse (1923-2014), Poet; doctor; author and playwright. 3 Portraits
- Leo Abse (1917-2008), Lawyer, writer and Labour politician; MP for Pontypool and Torfaen. 11 Portraits
- Abu Bakar, Sultan of Johore (1833-1895), Sultan of Johore. 1 Portrait
- Sultan Abu Bakar of Pahang (1904-1974), Son of Sultan Abdullah Al-Mutassim Billah Shah. 7 Portraits
- Frederick Christian Accum (1769-1838), Chemist. 2 Portraits
- King Achaius of Scotland (died 819), Reigned 787-819. 1 Portrait
- Andreas Achenbach (1815-1910), Landscape and marine painter; Brother of Oswald Achenbach. 1 Portrait
- Oswald Achenbach (1827-1905), Landscape painter; Brother of Andreas Achenbach. 1 Portrait
- Archibald Brabazon Sparrow Acheson, 4th Earl of Gosford (1841-1922), Vice-Chamberlain to Queen Alexandra. 1 Portrait
- Dean Acheson (1893-1971), American lawyer. 6 Portraits
- Sir Donald Acheson (1926-2010), Chief Medical Officer. 1 Portrait
- Edward Campion Acheson (1858-1934), Bishop of Connecticut. 2 Portraits
- Sir James Glasgow Acheson (1889-1973), Colonial administrator. 3 Portraits
- Johnson Hamilton Acheson, Rector, All Souls, Langham Place. 8 Portraits
- Janet Achurch (1864-1916), Actress. 1 Portrait
- Kathy Acker (née Lehman) (1944?-1997), Writer and performance artist. 2 Portraits
- Joe Randolph ('J.R.') Ackerley (1896-1967), Writer and editor. 7 Portraits
- Rudolph Ackermann (1764-1834), Publisher. 1 Portrait
- Rodney Ackland (1908-1991), Actor and playwright. 16 Portraits
- Roger Ackling (1947-), Artist. 1 Portrait
- Desmond James Conrad Ackner, Baron Ackner (1920-2006), Judge. 1 Portrait
- Dame (Dorothy) Elizabeth ('Betty') Ackroyd (1910-1987), Civil servant and consumer rights campaigner. 6 Portraits
- Sir Cuthbert Lowell Ackroyd, 1st Bt (1892-1973), Lord Mayor of London. 4 Portraits
- Norman Ackroyd (1938-), Artist. 3 Portraits
- Peter Ackroyd (1949-), Novelist, biographer and critic. 1 Portrait
- William Ackroyd. 1 Portrait
- Aino Ackté (1876-1944), Opera singer. 1 Portrait
- Anne Stella (née Alford), Lady Acland, Wife of Sir Richard Thomas Dyke Acland, 15th Bt. 3 Portraits
- Arthur Henry Dyke Acland (1811-1857), Son of Sir Thomas Dyke Acland, 10th Bt. 4 Portraits
- Sir Arthur Herbert Dyke Acland, 13th Bt (1847-1926), Politician and educational reformer. 2 Portraits
- Audrey Acland, Actress. 1 Portrait
- Hon. Beatrice Danvers Acland (née Smith) (1864-1942), Wife of Alfred Dyke Acland; daughter of William Henry Smith and 1st Viscountess Hambleden. 3 Portraits
- Sir (Charles) Thomas Dyke Acland, 12th Bt (1842-1919). 3 Portraits
- Gertrude (née Walrond), Lady Acland (1853-1920), Wife of Sir (Charles) Thomas Dyke Acland, 12th Bt; daughter of Sir John Walrond Walrond, 1st Bt. 1 Portrait
- Lady Christian Henrietta Caroline ('Harriet') Acland (née Fox, Fox-Strangways) (1750-1815), Diarist. 3 Portraits
- Sir Henry Wentworth Acland, 1st Bt (1815-1900), Physician. 7 Portraits
- John Dyke Acland (1746-1778), Soldier and politician. 2 Portraits
- John Dyke Acland (1863-1944), Justice of the Peace. 1 Portrait
- Lawford Acland (1811-1898), Solicitor and Justice of the Peace. 1 Portrait
- Lawford Maclean Acland (1852?-1932), Civil engineer; son of Lawford Acland. 2 Portraits
- Mary Acland. 1 Portrait
- Peter Bevil Edward Acland (1902-1993), Brigadier. 1 Portrait
- Richard Dyke Acland (1881-1954), Bishop of Bombay. 1 Portrait
- Sir Richard Thomas Dyke Acland, 15th Bt (1906-1990), Politician; founding member of the British Common Wealth Party. 12 Portraits
- Robina Jemima Acland (circa 1825-1913), Wife of Lawford Acland. 1 Portrait
- Sarah Angelina Acland (1849-1930), Photographer; daughter of Sir Henry Wentworth Acland, 1st Bt. 1 Portrait
- Sir Thomas Dyke Acland, 10th Bt (1787-1871), Philanthropist. 5 Portraits
- Sir Thomas Dyke Acland, 11th Bt (1809-1898), Politician and educational reformer. 6 Portraits
- Acland. 1 Portrait
- Reginald Henry Dyke Acland-Troyte (1851-1932), Licentiate, Dioceses of Bath; Chaplain of St. Andrew's Church, Pau, France. 1 Portrait
- Thomas Acocks (active 1844). 1 Portrait
- Jacapo Aconcio (Jacopus Acontius) (circa 1520-1566 or 1567), Theologian and military engineer. 1 Portrait
- Carlos Acosta (1973-), Ballet dancer. 1 Portrait
- Simon Acosta (died 1570), Jesuit Missionary. 1 Portrait
- Neeomi ('Speedy') Acquaye (1931-1993), Percussionist. 1 Portrait
- Louis Victor Arthur des Acres, 6th Marquis de l'Aigle of Porte (1809-1893), Husband of Eliza Sartoris. 1 Portrait
- John Acton, 1st Baron Acton (1834-1902), Historian and moralist. 3 Portraits
- Richard Maximilian Dalberg-Acton, 2nd Baron Acton (1870-1924), Diplomat. 7 Portraits
- Alfredo Acton (1867-1934), Chief of General Staff of Italian Navy Fleet and Vice-Admiral. 1 Portrait
- Sir Edward Acton (1865-1945), Judge. 2 Portraits
- Francis Elizabeth Acton (1784-1879), Wife of Edward Acton Acton; daughter of John Grove Spurgeon. 2 Portraits
- Sir Harold Mario Mitchell Acton (1904-1994), Author. 5 Portraits
- Sir John Francis Edward Acton, 6th Bt (1736-1811), Prime Minister of Naples. 2 Portraits
- Mary Anne (née Acton), Lady Acton (1786-1873), Wife of Sir John Francis Edward Acton, 6th Bt; daughter of Joseph Edward Acton. 1 Portrait
- Rosemary Acton (née Charlton) (1917-1997), Wife of Hampden Antony Greer Acton; daughter of Sir Edward Francis Benedict Charlton. 1 Portrait
- Miss Acton, Daughter of 2nd Baron Acton. 4 Portraits
- Sir Keith Courtney Acutt (1909-1986), Businessman; Deputy Chair of Anglo-American. 5 Portraits
- Bernard Acworth (1885-1963), Captain. 3 Portraits
- Donald George Acworth (1902-1971), Businessman. 1 Portrait
- Sir William Mitchell Acworth (1850-1925), Barrister. 3 Portraits
- Alexander Adair (1743-1834). 2 Portraits
- Sir Allan Henry Shafto Adair (1897-1988), Major-General. 4 Portraits
- Allan Shafto Adair (1836-1902), Army officer and Justice of the Peace. 1 Portrait
- Arthur Robin Adair (1913-1981), Diplomat. 1 Portrait
- James Adair (died 1798), Recorder of London, Chief Justice of Chester, politician and King's Sergeant. 3 Portraits
- Sir Robert Adair (1763-1855), Diplomat. 7 Portraits
- William Adair. 1 Portrait
- Prince Adalbert of Prussia (1884-1948), Naval officer; son of Wilhelm II, Emperor of Germany and King of Prussia. 1 Portrait
- Lady Antonia Lillian Adam (née Maude) (1864-1927), Daughter of Earl de Montalt of Dundrum and Clementina, Viscountess Hawarden; wife of William Augustus Adam. 1 Portrait
- Alexander Adam (1741-1809), Rector of High School in Edinburgh; writer. 1 Portrait
- Sir Charles Adam (1790-1853), Admiral. 1 Portrait
- Sir Charles Elphinstone Adam, 1st Bt (1859-1922), Landowner, barrister; Lord Lieutenant of Kinross-shire and army officer. 1 Portrait
- Elizabeth (née Brydone), Lady Adam (died 1871), Wife of Sir Charles Adam; daughter of Patrick Brydone. 1 Portrait
- Emily Eliza Adam (née Wyllie) (1838-1906), Wife of William Patrick Adam; daughter of Sir William Wyllie. 1 Portrait
- Sir Frank Forbes Adam, 1st Bt (1846-1926), Industrialist. 4 Portraits
- Sir Frederick Adam (1781-1853), General. 1 Portrait
- (David Stuart) Gordon Adam (1927-1995), Director of Barclay's Bank Ltd. 1 Portrait
- Hon. Irene Constance Adam (née Lawley) (1889-1976), Wife of Colin Gurdon Forbes Adam; daughter of 3rd Baron Wenlock. 1 Portrait
- John Adam (1721-1792), Architect; eldest of the Adam brothers. 1 Portrait
- Sir Ken Adam (1921-2016), Film production designer. 1 Portrait
- Neil Kensington Adam (1891-1973), Professor of chemistry. 4 Portraits
- Robert Adam (1728-1792), Architect. 2 Portraits
- Sir Ronald Forbes Adam, 2nd Bt (1885-1982), Army officer; Director-General of the British Council and President of the United Nations Association. 9 Portraits
- William Adam (1796-1881), Baptist minister, missionary, professor and slavery abolitionist. 4 Portraits
- William Adam (1751-1839), Scottish barrister, politician and judge. 6 Portraits
- William Patrick Adam (1823-1881), Politician and administrator in India. 5 Portraits
- John George Adami (1862-1926), Pathologist. 3 Portraits
- John Jackson Adams, 1st Baron Adams (1890-1960), Industrialist. 3 Portraits
- Abigail Brown Adams (née Brooks) (1808-1889), Wife of Charles Francis Adams, Sr; daughter of Peter Chardon Brooks. 1 Portrait
- Aileen Kirkpatrick Adams (1923-), Anaesthetist. 6 Portraits
- Alison Rose Adams (née Bradford) (1939-), Wife of James Ronald Creigton Adams; daughter of Sir Edward Bradford, 3rd Bt. 2 Portraits
- Annie Adams (born 1847), Wife of (Arthur) Walton Adams. 2 Portraits
- Sir Arthur Robert Adams (1861-1937), Colonial administrator. 3 Portraits
- Bernard Adams (1884-1965), Painter. 1 Portrait
- Bob Adams (active circa 1900-1925), Music hall entertainer; one of The Two Bobs. 1 Portrait
- Caroline Adams (died 1889), Actress and dancer. 2 Portraits
- Charles Francis Adams Sr (1807-1886), Lawyer, politician, diplomat and writer. 3 Portraits
- Charles Kingsley Adams (1899-1971), Director of the National Portrait Gallery. 1 Portrait
- Christopher Adams (born 1866), Miniature painter; son of (Arthur) Walton Adams. 1 Portrait
- Daniel Adams, Secretary, Society for Constitutional Information. 1 Portrait
- David Morgan Adams (1875-1942), Politician and soldier. 8 Portraits
- Diana Adams (1926-1993), Ballet dancer. 1 Portrait
- Donald Adams (1928-1996), Opera singer. 1 Portrait
- Douglas Noel Adams (1952-2001), Writer. 1 Portrait
- Edward Hamlyn Adams (1777-1842), Politician; MP for Carmarthenshire. 1 Portrait
- Eileen Adams, Model. 2 Portraits
- Elsie Adams (born circa 1864), Daughter of (Arthur) Walton Adams. 1 Portrait
- Ena Adams, Huntswoman; daughter of Norman Adams. 4 Portraits
- Sir Ernest Charles Adams (1886-1974), Politician. 7 Portraits
- Fiona Adams (1935-), Photographer. 2 Portraits
- Gerry Adams (1948-), Politician; President of Sinn Féin. 1 Portrait
- Gilbert Adams (1906-1996), Photographer and artist. 11 Portraits
- Henry George Homer Adams (1879-1960), Captain. 4 Portraits
- Ida Adams (circa 1888-1960), Actress and singer. 2 Portraits
- Ivy Adams (born 1880), Daughter of (Arthur) Walton Adams. 1 Portrait
- John ('Jack') Adams (active 17th century), Professor of celestial Sciences. 1 Portrait
- James Adams (1910-1986), Golfer. 2 Portraits
- James Edward Adams (active 1865-1887), Surgeon. 1 Portrait
- James W.R. Adams (died 1969), President of Town Planning Institute. 1 Portrait
- John Adams (1735-1826), President of the United States; signer of the Declaration of Independence. 1 Portrait
- John Adams (circa 1758-1804), Lieutenant and riding master. 1 Portrait
- John Couch Adams (1819-1892), Astronomer and mathematician. 2 Portraits
- John Harold Adams (1918-2008), Rear-Admiral. 1 Portrait
- Lawrence Adams (1936-2003), Canadian dancer. 1 Portrait
- Lilian Adams (born 1871), Miniature painter; daughter of (Arthur) Walton Adams. 1 Portrait
- Lily Maud Adams (née Farr) (born 1882), Wife of Marcus Adams. 3 Portraits
- Marcus Adams (1875-1959), Photographer. 33 Portraits
- Sir Maurice Edward Adams (1901-1982), Civil engineer in Chief of the Admiralty. 2 Portraits
- Sir Maurice Henry Adams (1908-1992), Surgeon Major and Rear-Admiral. 1 Portrait
- (Adrian) Neil Adams (1958-), Judoka; Olympian and Judo coach. 1 Portrait
- Nicola Virginia Adams (1982-), Boxer; Olympian. 1 Portrait
- Norah Adams (born circa 1878), Daughter of (Arthur) Walton Adams. 1 Portrait
- Norman Adams, Huntsman. 3 Portraits
- (Harold) Richard Adams (1912-1978), Politician and management consultant. 5 Portraits
- Richard George Adams (1920-2016), Novelist. 2 Portraits
- Robert Adams (1906-1965), Actor. 1 Portrait
- Samuel Adams (1722-1803), Signer of the Declaration of Independence. 1 Portrait
- Samuel Trerice Adams (1858-1936), Vicar of St Sepulchre and Honorary Canon of Ely and Cambridge Cathedral. 1 Portrait
- Sarah Flower Adams (1805-1848), Poet and hymn writer. 1 Portrait
- Sir Theodore Samuel Adams (1885-1961), Colonial civil servant. 3 Portraits
- T.J.B. Adams, Chairman of Hope Brothers and Hector Power. 2 Portraits
- Tony Alexander Adams (1966-), Footballer and football manager. 1 Portrait
- Victor Adams (1872-1935), Son of (Arthur) Walton Adams. 1 Portrait
- (Samuel) Vyvyan Trerice Adams (1900-1951), Major and Politician. 7 Portraits
- Sir Walter Adams (1906-1975), University administrator. 6 Portraits
- Walter Robert Adams (1877-1957), Archbishop of Yukon. 1 Portrait
- (Arthur) Walton Adams (1842-1934), Photographer. 3 Portraits
- Wes Adams, American cabaret dancer. 1 Portrait
- William Adams (1748-1831), Potter. 1 Portrait
- William Adams (1772-1851), Lawyer and diplomatist. 3 Portraits
- William Adams (1814-1848), Church of England clergyman and author. 1 Portrait
- William Adams (1820-1900), Surgeon. 1 Portrait
- William Davenport Adams (1851-1904), Journalist and compiler of reference works. 1 Portrait
- William George Stewart Adams (1874-1966), Political scientist and college head. 1 Portrait
- William Leslie Graham Adams (1901-1963), Rear-Admiral. 3 Portraits
- Judge Adams (active 1683), Judge. 3 Portraits
- Harry George Adams-Connor (1859-1939), Captain; son of G.H. Connor. 3 Portraits
- Alexander Adamson (1814-1888), Brother of Robert Adamson. 1 Portrait
- Mrs Alexander Adamson. 1 Portrait
- Estelle Inez Ommanney Adamson (1910-1990), Director of Nursing, St Thomas' Hospital. 1 Portrait
- Horation George Adamson (1865-1955), Dermatologist. 1 Portrait
- James Wilfred Adamson (died 1970), Businessman, founder of the British Paints Organisation. 1 Portrait
- Jennie Laurel Adamson (née Johnston) (1882-1962), Politician; MP for Dartford and Bexley. 1 Portrait
- John Adamson (1810-1870), Chemist; brother of Robert Adamson. 1 Portrait
- John Adamson (1886-1969), Chartered accountant. 1 Portrait
- Joy-Frederike Victoria Adamson (1910-1980), Naturalist. 4 Portraits
- Melville Adamson (born 1825), Sister of Robert Adamson. 1 Portrait
- Robert Adamson (1821-1848), Pioneer photographer. 3 Portraits
- Robert Adamson (active 1850s), Head-gardener at Balcarres Estate, Fife. 1 Portrait
- William Adamson (1863-1936), Politician, Chairman of the Parliamentary Labour Party and Secretary of State for Scotland. 14 Portraits
- William Murdoch Adamson (1881-1945), Politician; MP for Cannock. 1 Portrait
- Fleur Adcock (1934-), Poet. 1 Portrait
- Sir Frank Ezra Adcock (1886-1968), Historian of Greece and Rome. 6 Portraits
- (Arthur) St John Adcock (1864-1930), Literary critic. 2 Portraits
- Ferdinando d'Adda (1649-1719), Cardinal and Papal Legate. 3 Portraits
- Dawn Addams (1930-1985), Actress. 2 Portraits
- Hon. James Granville Adderley (1861-1942), Rector of St Edmund's the King with St Nicholas. 4 Portraits
- William Forrester Addie (1851-1921), Mayor of Welshpool. 4 Portraits
- John Gellibrand Hubbard, 1st Baron Addington (1805-1889), Politician, merchant and fiscal reformer; Director of Bank of England. 4 Portraits
- Egerton Hubbard Addington, 2nd Baron Addington (1842-1915), Politician and merchant. 5 Portraits
- John Gellibrand Hubbard, 3rd Baron Addington (1883-1966), Mayor of Buckingham. 5 Portraits
- Hon. Charles John Addington (1832-1903), Army officer; son of 2nd Viscount Sidmouth. 1 Portrait
- John Hiley Addington (1759-1818), Politician; MP for several constituencies. 2 Portraits
- Rupert Hiley Priaulx Addington (1898-1989), Major. 3 Portraits
- Sir William Addington (1728-1811), Magistrate at Bow Street. 4 Portraits
- Richard Addinsell (1904-1977), Composer. 5 Portraits
- Trevor Addinsell, Army officer. 1 Portrait
- Sir Charles Stewart Addis (1861-1945), Banker and government adviser; Director of the Bank of England. 10 Portraits
- Sir William Addis (1901-1978), Colonial administrator. 4 Portraits
- Christopher Addison, 1st Viscount Addison (1869-1951), Statesman. 20 Portraits
- Christopher Addison, 2nd Viscount Addison (1904-1976), Director. 4 Portraits
- Michael Addison, 3rd Viscount Addison (1914-1992), Civil servant. 2 Portraits
- Kathleen Addison (née Wand), Viscountess Addison, Wife of 3rd Viscount Addison. 4 Portraits
- William Matthew Wand Addison, 4th Viscount Addison (1945-), Son of 3rd Viscount Addison. 2 Portraits
- Sir Albert Percy Addison (1875-1952), Admiral and Director of Admiralty dock yards. 4 Portraits
- Carlotta Addison (Mrs Charles La Trobe) (1849-1914), Actress. 7 Portraits
- Charlotte Addison (née Myddelton, formerly Charlotte Rich, Countess of Warwick and Holland) (1680-1731), Former wife of 6th Earl of Warwick, and later wife of Joseph Addison. 3 Portraits
- D'Arcy Wentworth Addison (1872-1955), Tasmanian civil servant. 1 Portrait
- Edward Barker Addison (1898-1987), Air Vice-Marshal. 1 Portrait
- Jacqueline Faith Addison (1944-), Daughter of 2nd Viscount Addison. 3 Portraits
- John Addison (1920-1998), Composer. 1 Portrait
- Joseph Addison (1672-1719), Essayist and poet. 24 Portraits
- Lancelot Addison (1632-1703), Dean of Lichfield. 1 Portrait
- Laura Addison (née Wilmshurst) (1822-1852), Actress. 1 Portrait
- Hon. Paul Wand Addison. 1 Portrait
- Sarah Louise Addison (1971-). 1 Portrait
- William Addy (baptised 1618?-1695?), Stenographer and writing-master. 3 Portraits
- Michael Edward Adeane, Baron Adeane (1910-1984), Private secretary to Queen Elizabeth II. 3 Portraits
- Lady Edith Isabella Adeane (née Dalzell) (1843-1909), Wife of Edward Stanley Adeane; daughter of 10th Earl of Carnwath. 1 Portrait
- Charles Robert Whorwood Adeane (1863-1943), Justice of the Peace and Lord-Lieutenant of Cambridgeshire. 4 Portraits
- Kathleen Hamet (née Dunn), Lady Adeane (died 1956), Former wife of Peter Higgins, and later second wife of Sir Robert Adeane. 1 Portrait
- Madeline Pamela Constance Blanche Adeane (née Wyndham) (1871-1941), Daughter of Hon. Percy Scawen Wyndham; wife of Charles Adeane. 6 Portraits
- Sir Robert Philip Wyndham Adeane (1905-1979), Businessman and art collector. 9 Portraits
- Victor Olufemi Adebowale, Baron Adebowale (1962-), Politician and Chief Executive of Turning Point. 2 Portraits
- Ambrose Adekoya Campbell (1919-2006), Singer, guitarist, percussionist, composer and bandleader. 1 Portrait
- Queen Adelaide (Princess Adelaide of Saxe-Meiningen) (1792-1849), Queen of William IV. 33 Portraits
- Adele (Adele Laurie Blue Adkins) (1988-), Singer and songwriter. 1 Portrait
- Princess Adelheid of Hohenlohe-Langenburg, Duchess of Schleswig-Holstein-Sonderburg-Augustenburg (1835-1900), Wife of Frederick VIII, Duke of Schleswig-Holstein-Sonderburg-Augustenburg; daughter of Ernst, 4th Prince of Hohenlohe-Langenburg. 5 Portraits
- Konrad Adenauer (1876-1967), Federal German Chancellor. 1 Portrait
- Walter Frederick Adeney (1849-1920), Professor of New Testament Exegesis and Church History. 1 Portrait
- Adedoyin ('Ade') Adepitan (1973-), Television presenter and wheelchair basketball player; Paralympian and London 2012 Ambassador. 1 Portrait
- Maggie Aderin-Pocock (1968-), Scientist and mechanical engineer. 1 Portrait
- Thomas Joseph Edmund Adès (1971-), Composer. 3 Portraits
- Edward Adey (1799-1876), Baptist minister and slavery abolitionist. 4 Portraits
- (Arthur) Victor Adey (1912-1990), Businessman. 1 Portrait
- Kathryn ('Kate') Adie (1945-), Chief News Correspondent, BBC; Writer. 2 Portraits
- Michael Edgar Adie (1929-), Archdeacon of Lincoln. 1 Portrait
- Sir David Adjaye (1966-), Architect. 3 Portraits
- Thomas Adkin (active early 19th century). 2 Portraits
- Nellie Adkins (circa 1908-active 1931), Actress; wife of Ras Prince Monolulu. 2 Portraits
- Hermann Adler (1839-1911), Chief Rabbi. 3 Portraits
- Jankel Adler (1895-1949), Painter, printmaker and teacher. 1 Portrait
- Kurt Adler (1902-1958), German chemist. 1 Portrait
- Lawrence Cecil ('Larry') Adler (1914-2001), Mouth organist. 9 Portraits
- Nancy J. Adler (1931-), Daughter of Julius Ochs Adler. 6 Portraits
- Nathan Marcus Adler (1803-1890), Chief Rabbi. 2 Portraits
- Dr Adler. 1 Portrait
- Rodolph Ladeveze Adlercron (1873-1966), Brigadier-General. 4 Portraits
- Rebecca Adlington (1989-), Swimmer; Olympian. 1 Portrait
- Adolf, Duke of Holstein-Gottorp (1526-1586). 1 Portrait
- Princess Adolf of Schaumburg-Lippe (née Princess Victoria of Prussia) (1866-1929), Daughter of Frederick III, Emperor of Germany and Princess Victoria. 14 Portraits
- Bernard Adolf (1904-1979), Air-Commodore. 3 Portraits
- Prince Adolphus Frederick, Duke of Cambridge (1774-1850), Seventh son of George III. 17 Portraits
- Prince Adolphus, Duke of Teck and Marquess of Cambridge (1868-1927), Army officer; brother of Queen Mary. 18 Portraits
- John Adolphus (1768-1845), Barrister and historian. 1 Portrait
- Renée Adorée (1898-1933), Actress. 1 Portrait
- Pope Adrian IV (Nicholas Breakspear) (circa 1100-1159), Pope 1154-1159. 1 Portrait
- Pope Adrian V (Ottobuono de' Fieschi) (circa 1205-1276), Pope 1276. 1 Portrait
- Edgar Douglas Adrian, 1st Baron Adrian (1889-1977), Physiologist and chancellor of Cambridge University. 20 Portraits
- Max Adrian (Max Bor) (1903-1973), Actor. 3 Portraits
- Cora Adriana (active 1870s), Ballet dancer. 1 Portrait
- Stanley Davenport Adshead (1868-1946), Architect and professor of town planning. 1 Portrait
- Amishadai Larson Adu (born 1914), Assistant District Commissioner, Kumasi. 1 Portrait
- Clara Joan (née Williams), Lady Adye (1874-1929), Wife of Sir John Adye; daughter of S.C. Evans Williams. 1 Portrait
- Elizabeth Adye (née Ross) (active 1861), Wife of Willett Lawrence Adye. 1 Portrait
- Sir John Adye (1857-1930), Major-General. 12 Portraits
- Sir John Miller Adye (1819-1900), General. 2 Portraits
- Stephen Galway Adye (died 1838), Colonel of the Royal Regiment of Artillery. 1 Portrait
- Willett Lawrence Adye (1818-1878), Landowner, biblical scholar, musicologist and writer. 1 Portrait
- William John Patrick Adye-Curran (1876-1923), Army officer and surgeon. 1 Portrait
- Mrs Aely. 1 Portrait
- Aesop of Eton (active early 18th century). 1 Portrait
- Lady Selina Marguerite Hughes D'Aeth (née Gathorne-Hardy) (1869-1934), Wife of Reginald Hughes D'Aeth; daughter of 2nd Earl of Cranbrook. 2 Portraits
- Sir James Affleck, Bt (1759-1833), General. 2 Portraits
- Philip Affleck (1729-1799), Admiral. 2 Portraits
- Hubert Alafuro Ibibama Afonya (active 1950s), Assistant Bishop of the Niger Delta. 1 Portrait
- Adam Afriyie (1965-), Politician; MP for Windsor. 1 Portrait
- Haleh Afshar, Baroness Afshar (1944-), Professor of Politics; Life Peer in the House of Lords. 1 Portrait
- Grigory Gareginovich Agababyan (1911-1977), Architect. 1 Portrait
- Aga Khan III (Mohammed Shah) (1877-1957), Leader of the Ismailis and racehorse owner. 15 Portraits
- Lady Caroline Amy Cora Agar (1899-1989), Daughter of 4th Earl of Normanton. 4 Portraits
- Lady Georgina Mary Elizabeth Agar (1896-1967), Daughter of 4th Earl of Normanton. 3 Portraits
- Lady Mary Beatrice Agar (1859-1943), Daughter of 3rd Earl of Normanton. 5 Portraits
- Dan Agar (1881-1950), Actor. 8 Portraits
- Eileen Agar (1899-1991), Painter. 4 Portraits
- Sir Francis Agar (1859-1934), Sheriff of London; Lieutenant of the City of London; Deputy Alderman. 2 Portraits
- Hon. Francis William Arthur ('Frank') Agar (1873-1936), Soldier; son of 3rd Earl of Normanton. 1 Portrait
- Hon. Henry Augustus Bernard Agar (1870-1885), Son of 3rd Earl of Normanton. 2 Portraits
- Herbert Sebastian Agar (1897-1980), American author and publisher. 15 Portraits
- John Samuel Agar (1773-1858), Engraver. 1 Portrait
- Wilfred Eade Agar (1882-1951), Emeritus Professor of Zoology. 1 Portrait
- John Agard (1949-), Poet, playwright, performer and anthologist. 1 Portrait
- George Agar-Ellis, 1st Baron Dover (1797-1833), A founder of the National Gallery. 10 Portraits
- Isidore Agasse (active early 19th century). 1 Portrait
- (Jean) Louis Rodolphe Agassiz (1807-1873), Zoologist, glaciologist and geologist. 1 Portrait
- James Evershed Agate (1877-1947), Drama critic. 21 Portraits
- Tony Ageh (1959-), Controller of Archive Development, BBC. 1 Portrait
- Tom Aggar (1984-), Rower; Paralympian. 1 Portrait
- Lucy Aggs (1789?-1853), Quaker philanthropist. 4 Portraits
- Thanassis Aghnides (1889-1984), Greek Ambassador to London, 1942-47. 14 Portraits
- Gaby Agis (1960-), Dancer and choreographer. 1 Portrait
- Sir Francis Arthur Aglen (1869-1932), Inspector-General Maritime Customs, China. 3 Portraits
- Henry Aglionby Aglionby (1790-1854), Barrister and politician: MP for Cockermouth. 1 Portrait
- John Orfeur Aglionby (1884-1963), Anglican Bishop of Accra. 1 Portrait
- Lady (Mary Arabella) Louisa Agnew (née Noel) (1822-1883), Wife of Sir Andrew Agnew, 8th Bt; daughter of 1st Earl of Gainsborough. 1 Portrait
- Sir Andrew Agnew, 7th Bt (1793-1849), Sabbatarian. 1 Portrait
- Sir Andrew Agnew, 8th Bt (1818-1892), Politician; MP to Wigtownshire. 1 Portrait
- Andrew Quentin Agnew (1917-1944), Major, Royal Scots Fusiliers. 5 Portraits
- Hon. Clare Rosalind Agnew (née Dixon) (1937-), Second wife of Rudolph Ion Joseph Agnew (later Sir R. Agnew); daughter of 2nd Baron Glentoran. 6 Portraits
- Colin Agnew (1922-1975), Art dealer. 1 Portrait
- Doreen Maud Agnew (née Jessel) (1909-1990), War-time administrative assistant; wife of Geoffrey William Gerald Agnew; daughter of 1st Baron Jessel. 4 Portraits
- Sir Geoffrey William Gerald Agnew (1908-1986), Art dealer. 2 Portraits
- Sir George William Agnew, 2nd Bt (1852-1941), Art publisher. 1 Portrait
- Sir (William) Godfrey Agnew (1913-1995), Clerk of the Privy Council. 2 Portraits
- Hugh Agnew (1894-1975), Art dealer. 1 Portrait
- (Charles) Morland Agnew (1855-1931), Art dealer. 1 Portrait
- Sir Patrick Dalreagle Agnew (1868-1925), Civil servant in India. 2 Portraits
- Sir Peter Garnett Agnew, 1st Bt (1900-1990), Naval officer and Conservative politician; MP for Camborne and South Worcestershire. 3 Portraits
- Ruth Mary Agnew (née Moore) (1919-1962), Daughter of Lady Dorothie Mary Evelyn Moore (née Feilding). 2 Portraits
- Thomas Agnew (1794-1871), Art dealer. 1 Portrait
- Sir William Agnew, 1st Bt (1825-1910), Art dealer. 4 Portraits
- Sir William Gladstone Agnew (1898-1960), Vice-Admiral. 6 Portraits
- Heinrich Cornelius Agrippa (1486-1535), German magician, occult writer, astrologer, and alchemist. 3 Portraits
- Mimi Aguglia-Ferrau (1884-1970), Actress. 6 Portraits
- Jennifer Ann ('Jenny') Agutter (1952-), Actress. 3 Portraits
- Jacqueline ('Jacqui') Agyepong (1969-), 100 metre hurdler; Olympian. 2 Portraits
- Ah Ah Shaw We Ke Shick ('Crossing Sky') (died 1863), Chief of Rabbit Lake Chippewas. 1 Portrait
- Timothy Michael Richard Ahern (1908-1980), Major-General. 1 Portrait
- Caroline Aherne (1963-2016), Comedian and actress. 2 Portraits
- Countess Ingegerd Ahlefeldt-Laurvig (1900-1986), Painter; daughter of Count Preben Ahlefeldt-Laurvigen, Danish Minister to London. 6 Portraits
- Ahmad Tajuddin, Sultan of Brunei (1913-1950), Sultan of Brunei. 5 Portraits
- Rizwan Ahmed (1982-), Actor and rapper. 2 Portraits
- Shami Ahmed (1962-), Businessman. 1 Portrait
- Mrs Ahok (born 1850), Preacher. 1 Portrait
- Ah-pe-ma-za, Sioux Indian. 1 Portrait
- Peter Ahrends (1933-), Architect; co-founder of Ahrend, Burton and Koralek. 1 Portrait
- Francis Aickin (circa 1735-1812), Actor. 1 Portrait
- James Aickin (circa 1736-1803), Actor. 1 Portrait
- Robert Fordyce Aickman (1914-1981), Short-story writer, editor, author, novelist. 4 Portraits
- Georgina Aïdá (née Collier) (died 1875), Mother of (Charles) Hamilton Aidé. 1 Portrait
- (Charles) Hamilton Aidé (1826-1906), Novelist and poet. 2 Portraits
- Comte de l'Aigle. 1 Portrait
- Anthony Aikenhead (1953-), Engineer; member of London 2012 Olympic Park Stadium team. 1 Portrait
- Robert Charles Aikenhead, Major; son of D.F. Aikenhead. 2 Portraits
- Tom Aikens (1970-), Chef. 2 Portraits
- Arthur Aikin (1773-1854), Chemist and geologist. 1 Portrait
- John Aikin (1747-1822), Physician and author. 3 Portraits
- Sir Alexander Aikman (1886-1968), Chartered accountant. 5 Portraits
- Frederick Robertson Aikman (1828-1888), Army officer; member of the jury in 'Tichborne v Lushington'. 4 Portraits
- Charles Brudenell-Bruce, 1st Marquess of Ailesbury (1773-1856), Peer and politician. 1 Portrait
- Maria Elizabeth (née Tollemache), Marchioness of Ailesbury (1809-1895), Artist and second wife of 1st Marquess of Ailesbury. 3 Portraits
- George William Frederick Brudenell-Bruce, 2nd Marquess of Ailesbury (1804-1878), Politician and royal courtier. 5 Portraits
- Mary Caroline (née Herbert), Marchioness of Ailesbury (1813-1892), Wife of 2nd Marquess of Ailesbury; daughter of 11th Earl of Pembroke. 4 Portraits
- Ernest Augustus Charles Brudenell-Bruce, 3rd Marquess of Ailesbury (1811-1886), Courtier and politician: MP for Marlborough. 3 Portraits
- George William Thomas Brudenell-Bruce, 4th Marquess of Ailesbury (1863-1894), Landowner. 1 Portrait
- Chandos Sydney Cedric Brudenell-Bruce, 7th Marquess of Ailesbury (1904-1974), Major and Justice of the Peace. 8 Portraits
- Joan Houlton (née Salter), Marchioness of Ailesbury (circa 1904-1937), Wife of 7th Marquess of Ailesbury; daughter of Stephen Salter. 7 Portraits
- Joyce Frances (née Warwick-Evans), Countess of Cardigan (1917-2000), Former wife of Peter Quennell, and second wife of Earl of Cardigan (later 7th Marquess of Ailesbury). 8 Portraits
- Michael Sydney Cedric Brudenell-Bruce, 8th Marquess of Ailesbury (1926-), Landowner and Member of the London Stock Exchange. 5 Portraits
- Juliet Adrienne Lethbridge (née Kingsford), Marchioness of Ailesbury (1932-), Second wife of 8th Marquess of Ailesbury; daughter of Edward Hilary Lethbridge Kingsford. 5 Portraits
- Robert Bruce, 1st Earl of Ailesbury and 2nd Earl of Elgin (circa 1626-1685), Lord Chamberlain. 7 Portraits
- Thomas Bruce, 2nd Earl of Ailesbury (1655-1747), Jacobite and courtier. 1 Portrait
- Thomas Brudenell-Bruce, 1st Earl of Ailesbury (1729-1814), Courtier. 2 Portraits
- Archibald Kennedy, 3rd Marquess of Ailsa (1847-1938), Lord Lieutenant and yachtsman. 2 Portraits
- Archibald Kennedy, 4th Marquess of Ailsa (1872-1943), Army officer. 1 Portrait
- Frances Emily (née Stewart), Marchioness of Ailsa (died 1949), Fellow, Society of Antiquaries of Scotland; wife of 4th Marquess of Ailsa; daughter of Sir Mark John MacTaggart Stewart, 1st Bt. 1 Portrait
- Angus Kennedy, 6th Marquess of Ailsa (1882-1957), Naval architect. 7 Portraits
- Gertrude Millicent (née Cooper), Marchioness of Ailsa (1902-1957), Wife of 6th Marquess of Ailsa; daughter of Gervas Weir Cooper. 2 Portraits
- Ailwyn Edward Fellowes, 1st Baron Ailwyn (1855-1924), Politician and landowner. 24 Portraits
- Agatha Eleanor Augusta Fellowes (née Jolliffe), Lady Ailwyn (1863-1938), Wife of 1st Baron Ailwyn; daughter of 2nd Baron Hylton. 3 Portraits
- Mildred (née King), Lady Ailwyn, Wife of 2nd Baron Ailwyn; daughter of Lorraine King. 4 Portraits
- Eric William Edward Fellowes, 3rd Baron Ailwyn (1887-1976), Member of House of Lords 1957-72; Deputy Chairman of Committees and Deputy Speaker. 9 Portraits
- Anouk Aimée (1932-), Actress. 3 Portraits
- Alfred Ainger (1837-1904), Writer, humorist and divine. 2 Portraits
- Alfred Campbell Ainger (1841-1919), Eton schoolmaster. 1 Portrait
- D.A.F. Ainger? (active 1923). 1 Portrait
- William Ainger, Clergyman. 2 Portraits
- Beatrice Ainley (died 1939), Actress. 1 Portrait
- Henry Hinchliffe Ainley (1879-1945), Actor. 17 Portraits
- Richard Ainley (1910-1967), Actor. 11 Portraits
- Ernest William Ainley-Walker (1871-1955), Pathologist. 3 Portraits
- Sir Thomas Martland Ainscough (1886-1976), Colonial administrator. 3 Portraits
- Hon. Mabel Nancy Mercer Ainscow (née Siddlely) (1904-1963), Wife of John Arthur Ainscow; daughter of 1st Baron Kenilworth. 4 Portraits
- Sir Ben Ainslie (1977-), Sailor; Olympian. 1 Portrait
- Elizabeth (née Wenger), Lady Ainslie (died 1868), Wife of Sir Robert Sharpe Ainslie, 2nd Bt. 1 Portrait
- Esther Ainslie. 1 Portrait
- George Ainslie (1803-1875), Secretary of the Church Building Society; son of Sir Robert Sharpe Ainslie, 2nd Bt. 1 Portrait
- Michael Frederic Roberts Ainslie (1913-1987), Commander, Royal Navy. 1 Portrait
- Sir Philip Ainslie (1729-1802), Colonel. 2 Portraits
- Charles Ainsworth (1874-1956), Politician and Lieutenant-General. 5 Portraits
- Harrison Ainsworth (1888-1965), Newspaper editor. 8 Portraits
- Sir John Stirling Ainsworth, 1st Bt (1844-1923), Industrialist, banker and Liberal politician; MP for Argyllshire. 1 Portrait
- Sir Ralph Bignell Ainsworth (1875-1952), Major-General. 5 Portraits
- William Harrison Ainsworth (1805-1882), Novelist. 10 Portraits
- Henry Airay (1559-1616), Provost of Queen's College, Oxford. 2 Portraits
- Lady Priscilla Aird (née Heathcote-Drummond-Willoughby) (1909-2002), Wife of Sir John Renton Aird; daughter of 2nd Earl of Ancaster. 2 Portraits
- Barbara Aird, Actress. 1 Portrait
- Sir John Aird, 1st Bt (1833-1911), Civil engineering contractor. 5 Portraits
- Sir (George) John Aird, 4th Bt (1940-), Businessman. 2 Portraits
- Sir John Renton Aird, 3rd Bt (1898-1973), Extra Equerry to Queen Elizabeth II (formerly Extra Equerry to King George VI). 5 Portraits
- Mary Elizabeth Aird (née Des Voeux) (1940-), Daughter of Sir (William) Richard Des Voeux, 9th Bt; wife of Jeremy John Aird. 5 Portraits
- Susan Priscilla Aird (1942-), Daughter of Sir John Renton Aird. 2 Portraits
- James Kitson, 1st Baron Airedale (1835-1911), Locomotive manufacturer and politician. 1 Portrait
- Albert Ernest Kitson, 2nd Baron Airedale of Gledhow (1863-1944), Director of Midland Bank. 1 Portrait
- Roland Dudley Kitson, 3rd Baron Airedale of Gledhow (1882-1958), High Sheriff of London. 1 Portrait
- Richard Airey, 1st Baron Airey (1803-1881), Army officer. 4 Portraits
- Harriett Mary Everard (née Talbot), Lady Airey (died 1881), Wife of 1st Baron Airey; daughter of 3rd Baron Talbot of Malahide. 2 Portraits
- Bridget Georgiana (née Vesey), Lady Airey (1915-2005), Wife of Sir Terence Sydney Airey; daughter of Hon. Thomas Eustace Vesey. 3 Portraits
- Richard Ryder Airey (1902-1941), Naval officer. 1 Portrait
- Robert Berkeley Airey (1874-1933), Cricketer. 6 Portraits
- Sir Terrence Sydney Airey (1900-1983), Lieutenant-General. 2 Portraits
- David Graham Drummond Ogilvy, 5th Earl of Airlie (1826-1881), Representative peer and Lord High Commissioner to the Church of Scotland. 3 Portraits
- Henrietta Blanche (née Stanley), Countess of Airlie (1830-1921), Wife of 5th Earl of Airlie; daughter of 2nd Baron Stanley of Alderley. 5 Portraits
- David William Stanley Ogilvy, 6th Earl of Airlie (1856-1900), Landowner and army officer. 4 Portraits
- Mabell Frances Elizabeth (née Gore), Countess of Airlie (1866-1956), Royal courtier; wife of 6th Earl of Airlie; daughter of 5th Earl of Arran. 7 Portraits
- David Lyulph Gore Wolseley, 7th Earl Airlie (1893-1968), Lord Chamberlain. 12 Portraits
- David Ogilvy, 12th Earl of Airlie (1893-1968), Director of Barclays Bank. 1 Portrait
- David George Coke Patrick Ogilvy, 13th Earl of Airlie (1926-), Lord Chamberlain. 3 Portraits
- Anna Airy (1882-1964), Artist. 2 Portraits
- Annet Airy (1843-1924), Artist; daughter of Sir George Biddell Airy. 3 Portraits
- A. Airy (active 1861), Relation of Sir George Biddell Airy. 1 Portrait
- Christabel Airy (1842-1917), Artist; daughter of Sir George Biddell Airy. 3 Portraits
- Emily Josephine Airy (née Miller) (1848-1948), Wife of Osmund Airy. 3 Portraits
- Sir George Biddell Airy (1801-1892), Astronomer Royal. 24 Portraits
- Hubert Airy (1838-1903), Physician and government medical inspector; son of George Biddell Airy. 4 Portraits
- Osmund Airy (1845-1928), Historian; son of Sir George Biddell Airy. 3 Portraits
- Richarda (née Smith), Lady Airy (1804-1875), Wife of Sir George Biddell Airy. 3 Portraits
- Susan Cecilia Airy (née Langton) (1837-1924), Wife of Hubert Airy. 3 Portraits
- Wilfrid Airy (1836-1925), Civil engineer; son of George Biddell Airy. 4 Portraits
- Sir Owen Arthur Aisher (1900-1993), Businessman. 1 Portrait
- Aiskew, Clerk assistant, House of Commons. 4 Portraits
- Benjamin Aislabie (1774-1842), Secretary of Marylebone Cricket Club. 1 Portrait
- John Aislabie (1670-1742), Whig politician; Chancellor of the Exchequer. 1 Portrait
- Sir Charles Umpherston Aitchison (1832-1896), Administrator in India. 1 Portrait
- Craigie Aitchison (1926-2009), Artist. 5 Portraits
- George Aitchison (1825-1910), Architect. 1 Portrait
- James Aitchison (1899-1968), Professor of Dental Surgery. 1 Portrait
- Alexander Craig Aitken (1895-1967), Professor of Mathematics. 3 Portraits
- Sir Arthur Percival Hay ('Peter') Aitken (1905-1984), Chairman of Norwich Union Insurance Group. 2 Portraits
- Carolina Mary (née Lobb), Lady Aitken, Wife of Sir Robert AItken; daughter of Theophilus Lobb. 4 Portraits
- Charles Aitken (1869-1936), Director of the Tate Gallery. 3 Portraits
- Constance Aitken (née Drake), Wife of John Aitken. 4 Portraits
- Janet Ruth Murrenne Aitken (née Macneil), First wife of Hon. Peter Rudyard Aitken; daughter of Murray Macneil. 2 Portraits
- John Aitken. 3 Portraits
- Sir John William Maxwell ('Max') Aitken, 2nd Bt (1910-1985), Newspaper publisher; President of Express Newspapers; son of 1st Baron Beaverbrook. 5 Portraits
- Jonathan William Patrick Aitken (1942-), Company director, politician and newspaper columnist and writer. 2 Portraits
- Hon. Peter Rudyard Aitken (1912-1947), Second son of 1st Baron Beaverbrook and Army captain. 3 Portraits
- Robert Aubrey Aitken (1870-1941), Vicar of Great Yarmouth and Honorary Canon of Norwich Cathedral. 1 Portrait
- Sir Robert Stevenson Aitken (1901-1997), Professor of Medicine; Vice-Chancellor of Birmingham University. 1 Portrait
- (Robert) Stanley Aitken (1896-1982), Air Vice-Marshal. 3 Portraits
- Ursula (née Wales), Lady Aitken, Wife of Sir Arthur Percival Hay ('Peter') Aitken; daughter of Herbert Wales. 2 Portraits
- John Aldam Aizlewood (1895-1990), Major-General. 4 Portraits
- Mark Akenside (1721-1770), Poet and physician. 4 Portraits
- Sir Wallace Alan Akers (1888-1954), Research Director of ICI. 3 Portraits
- Hon. Aretas Akers-Douglas (1905-1940), Son of 2nd Viscount Chilston. 4 Portraits
- Daphne Akhurst (Mrs R. Cozens) (1903-1933), Australian lawn tennis player. 1 Portrait
- Ebenezer Ako-Adjei (1916-2002), Ghanaian politician; Minister for Foreign Affairs. 1 Portrait
- John Akomfrah (1957-), Artist, writer, film director, screenwriter, theorist and curator. 1 Portrait
- Bayly N. Akroyd. 1 Portrait
- Edward Akroyd (1810-1887), Industrialist, philanthropist and politician. 1 Portrait
- Brian John Akroyd-Hunt (1940-1984), Soldier. 2 Portraits
- William Alabaster (1568-1640), Church of England clergyman and writer. 2 Portraits
- Prince (Dejatch) Alamayou of Abyssinia (Prince Alemayehu Tewodros of Ethiopia) (1861-1879), Son of King Theodore of Abyssinia (Ethiopia). 4 Portraits
- Henry Fitz Alan (Alwine) (circa 1135-1212), First Lord Mayor of London, 1189-1212. 3 Portraits
- Alan Francis Brooke, 1st Viscount Alanbrooke (1883-1963), Field Marshal. 31 Portraits
- Benita Brooke (née Pelly), Viscountess Alanbrooke (1892-1968), Wife of 1st Viscount Alanbrooke. 8 Portraits
- Alan Victor Harold Brooke, 3rd Viscount Alanbrooke (1932-), Son of 1st Viscount Alanbrooke. 4 Portraits
- Kyra Alanova (1902-1965), Dancer. 6 Portraits
- John à Lasco (1499-1560), Evangelical reformer. 3 Portraits
- Alastair Arthur, 2nd Duke of Connaught and Strathearn (1914-1943), Son of Prince Arthur; great-grandson of Queen Victoria. 7 Portraits
- Hanan Alattar, Opera Singer. 1 Portrait
- Don Miguel Ricardo de Alava (1771-1843), Spanish ambassador. 1 Portrait
- St Alban (died circa 303?), Christian martyr in Roman Britain. 1 Portrait
- Licia Albanese (1913-2014), Italian soprano opera singer. 1 Portrait
- Meggie Albanesi (1899-1923), Actress. 1 Portrait
- Dame Marie Louise Cecilie Emma Albani (née Lajeunesse) (1847-1930), Soprano. 12 Portraits
- Princess Helen, Duchess of Albany (1861-1922), Wife of Prince Leopold, Duke of Albany; daughter of Prince George Victor of Waldeck-Pyrmont. 22 Portraits
- Prince Leopold, Duke of Albany (1853-1884), Fourth and youngest son of Queen Victoria. 61 Portraits
- Louisa, Countess of Albany (1752-1824), Wife of Prince Charles Edward Stuart. 3 Portraits
- Céleste Albaret (1892-1984), Housekeeper for Marcel Proust. 1 Portrait
- Damon Albarn (1968-), Musician, singer and songwriter for 'Blur' and co-founder of 'Gorillaz'. 5 Portraits
- George Monck, 1st Duke of Albemarle (1608-1670), Soldier and statesman. 49 Portraits
- Anne Monck (née Clarges), Duchess of Albemarle (1619-1670), Wife of 1st Duke of Albemarle. 10 Portraits
- Christopher Monck, 2nd Duke of Albemarle (1652-1688), Soldier and governor of Jamaica. 11 Portraits
- Elizabeth Monck (née Cavendish), Duchess of Albemarle (1654-1734), Wife of Christopher Monck, 2nd Duke of Albemarle. 1 Portrait
- Arnold Joost van Keppel, 1st Earl of Albemarle (1669-1718), General. 5 Portraits
- William Anne Keppel, 2nd Earl of Albemarle (1702-1754), General and diplomat. 5 Portraits
- George Keppel, 3rd Earl of Albemarle (1724-1772), General. 6 Portraits
- William Charles Keppel, 4th Earl of Albemarle (1772-1849), Master of the Horse. 4 Portraits
- George Thomas Keppel, 6th Earl of Albemarle (1799-1891), Army officer. 4 Portraits
- Susan (née Trotter), Countess of Albemarle (circa 1806-1885), Wife of 6th Earl of Albemarle; daughter of Sir Coutts Trotter, 1st Bt. 1 Portrait
- William Coutts Keppel, 7th Earl of Albemarle (1832-1894), Soldier, politician and Under-Secretary for War. 2 Portraits
- Sophia Mary (née MacNab), Countess of Albemarle (1832-1917), Wife of 7th Earl of Albemarle; daughter of Sir Allan Napier MacNab, 1st Bt. 3 Portraits
- Arnold Allan Keppel, 8th Earl of Albemarle (1858-1942), Lord-in-Waiting to the King, 1922-24. 20 Portraits
- Gertrude Lucia (née Egerton), Countess of Albemarle (1861-1943), Wife of 8th Earl of Albemarle; daughter of 1st Earl Egerton of Tatton. 7 Portraits
- Walter Egerton George Lucian Keppel, 9th Earl of Albemarle (1882-1979), Soldier, Aide-de-camp to colonial governors and London County Councillor. 11 Portraits
- Diana Cicely (née Grove), Countess of Albemarle (1909-2013), Second wife of 9th Earl of Albemarle; daughter of John Archibald Grove. 11 Portraits
- Hans Albers (1891-1960), Actor and producer. 1 Portrait
- Henri Albers (1866-1925), Dutch opera singer. 1 Portrait
- Albert II of Germany (1397-1439), King of Hungary and Croatia, King of Bohemia, King-elect of Germany and Archduke of Austria. 1 Portrait
- Prince Albert of Saxe-Coburg-Gotha (1819-1861), Prince Consort of Queen Victoria. 206 Portraits
- King Albert I of Saxony (1828-1902), Son of King John I. 3 Portraits
- Albert I, Prince of Monaco (1848-1922), Prince of Monaco. 1 Portrait
- Prince Albert of Schleswig-Holstein (1869-1931), Second eldest child of Prince and Princess Christian of Schleswig-Holstein. 5 Portraits
- Albert I, King of the Belgians (1875-1934), Reigned 1909-34. 10 Portraits
- King Albert II of the Belgians (1934-), Son of Queen Astrid of Belgium. 5 Portraits
- Dorothy Albert (active 1923). 1 Portrait
- Fred Albert (1844-1886), Music hall singer and songwriter. 2 Portraits
- St Albert ('the Great') (circa 1193-1280), Philosopher and theologian. 1 Portrait
- Emma Albertazzi (née Howson) (1813-1847), Singer. 4 Portraits
- Guglielmo Degli Alberti. 1 Portrait
- Viviane ('Viv') Albertine (1955-), Musician; guitarist for the band The Slits. 1 Portrait
- Prince Albert Victor, Duke of Clarence and Avondale (1864-1892), Eldest son of Edward VII. 116 Portraits
- Sir Bronson James Albery (1881-1971), Theatre director. 16 Portraits
- Sir Donald Arthur Rolleston Albery (1914-1988), Chairman and Managing Director, The Wyndham Theatres, Donmar Productions and Piccadilly Theatre Ltd; Director, Anglia Television. 7 Portraits
- Ian Bronson Albery (1936-), Chief Executive of Sadler’s Wells, Peacock and Lilian Baylis Theatres. 6 Portraits
- Sir James Irving Albery (1879-1967), Conservative politician; MP for Gravesend. 1 Portrait
- James ('Jim') Albery (1838-1889), Playwright. 1 Portrait
- Robert James Albery (circa 1850-1934), Journalist for Daily Express (Dublin). 1 Portrait
- Marietta Alboni, Countess Pepoli (née Maria Anna Marzia) (1823-1894), Opera singer. 8 Portraits
- Monsieur Albony (active 1891), Actor and singer. 1 Portrait
- Albrecht, Archduke of Austria (1817-1895). 2 Portraits
- Giambattista Albrizzi (1698-1777), Italian publisher and journalist. 1 Portrait
- Austen Harry Albu (1903-1994), Engineer and politician. 6 Portraits
- Frederick Beauchamp Paget Seymour, 1st Baron Alcester (1821-1895), Naval officer. 5 Portraits
- Henry Campbell Alchorne (died 1939), Magistrate. 2 Portraits
- Alfred William Alcock (1859-1933), Zoologist. 2 Portraits
- Amanda Alcock (active 2011), Subscriptions Manager for Private Eye. 2 Portraits
- Elizabeth Alcock (née Stuart) (born circa 1811), Wife of Thomas Alcock; daughter of Henry Stuart. 1 Portrait
- John Alcock (1430-1500), Bishop of Ely. 7 Portraits
- John Alcock (1715-1806), Organist of Lichfield Cathedral. 2 Portraits
- Sir John William Alcock (1892-1919), Aviator and RAF Captain; pilot of the first non-stop flight across the Atlantic. 1 Portrait
- Sir (John) Rutherford Alcock (1809-1897), Diplomat. 5 Portraits
- Thomas Alcock (1801-1866), Politician; MP for several constituencies and traveller. 1 Portrait
- Sir Walter Galpin Alcock (1861-1947), Organist and composer. 2 Portraits
- Nicholas Alcocke (active 1541-died 1550), Surgeon to King Edward VI. 1 Portrait
- Yamilé Aldama (1972-), Triple jumper; Olympian. 1 Portrait
- Bob Alden (active circa 1900-1925), Music hall entertainer; one of The Two Bobs. 1 Portrait
- Sir Percy Alden (1865-1944), Politician, writer and social reformer. 11 Portraits
- Henry Hucks Gibbs, 1st Baron Aldenham (1819-1907), Merchant and merchant banker; Director of Bank of England; Trustee of the National Portrait Gallery. 4 Portraits
- Alban George Henry Gibbs, 2nd Baron Aldenham (1846-1936), Politician; MP for London. 5 Portraits
- Gerald Henry Beresford Gibbs, 3rd Baron Aldenham (1879-1939), Businessman. 1 Portrait
- Beatrix Elinor Gibbs (née Paul), Lady Aldenham (1891-1978), Former wife of Algernon Hyde Villiers, and later wife of Walter Durant Gibbs, 4th Baron Aldenham; daughter of Herbert Woodfield Paul. 1 Portrait
- Anthony Durant Gibbs, 5th Baron Aldenham (1922-1986), Son of Walter Durant Gibbs, 4th Baron Aldenham. 3 Portraits
- Daniel Alder (active 1823), Indigo broker. 3 Portraits
- G. Alder. 1 Portrait
- John Alder (active early 18th century), Turkish Prisoner in the Fleet 127. 1 Portrait
- Joshua Alder (1792-1867), Zoologist. 1 Portrait
- Hon. Frederick Charles Alderdice (1871-1936), Prime Minister of Newfoundland. 3 Portraits
- Sir Edward Hall Alderson (1787-1857), Baron of the Exchequer. 2 Portraits
- Sir Edward Hall Alderson (1864-1951), Barrister; Clerk Assistant of the Parliaments. 5 Portraits
- Sir Edwin Alfred Hervey Alderson (1859-1927), Lieutenant-General. 8 Portraits
- James Alderson (1742-1825), Physician; father of Amelia Opie. 1 Portrait
- Sir James Alderson (1794-1882), Physician. 1 Portrait
- Robert Alderson (1752-1833), Recorder of Ipswich, Yarmouth and Norwich. 1 Portrait
- Wilfred Alderson (active 1925). 1 Portrait
- Winifred Alderson (active 1925). 1 Portrait
- Mr Alderson. 1 Portrait
- Catherine B.Alderton (née Robinson) (1869-1951), Mayor of Colchester; wife of Archibald Alderton; daughter of T.Robinson. 1 Portrait
- John Alderton (1940-), Actor. 3 Portraits
- Mary A. Aldham (active 1910s), Suffragette. 1 Portrait
- Cecil Charles Windsor Aldin (1870-1935), Artist and illustrator. 1 Portrait
- Austin Richard William ('Toby') Low, 1st Baron Aldington (1914-2000), Soldier and politician. 16 Portraits
- John Norman Aldington (1905-1987), Chairman of Royal Worcester Ltd. 1 Portrait
- (Edward Godfree) Richard Aldington (1892-1962), Poet, critic and novelist. 9 Portraits
- Giovanni Aldini (1762-1834), Italian experimental philosopher and writer. 1 Portrait
- Brian Wilson Aldiss (1925-2017), Writer and critic. 4 Portraits
- Noel Massey Aldous (died 1942), Reverend, Chaplain to the South African Forces and amateur rower. 1 Portrait
- Thomas Aldredge (1928-2011), American actor. 1 Portrait
- Henry Aldrich (1647-1710), Dean of Christ Church. 6 Portraits
- Richard Stoddard Aldrich (1902-1986), Theatre producer; lieutenant-commander USNR; husband of Gertrude Lawrence. 2 Portraits
- William Aldrich (1737-1797), Lord Mayor of Dublin. 2 Portraits
- Winthrop Williams Aldrich (1885-1974), Banker, lawyer and American ambassador in London. 2 Portraits
- Dame Louisa Brandreth Aldrich-Blake (1865-1925), Surgeon; first British woman to obtain the degree of Master of Surgery; daughter of Frederick James Aldrich-Blake. 2 Portraits
- Alan Aldridge (1943-2017), Artist, graphic designer and illustrator. 2 Portraits
- Albert E. Aldridge, Director, Ever Ready Trust Co. Ltd. 1 Portrait
- Ira Frederick Aldridge (1807-1867), Actor. 4 Portraits
- John Aldridge (1832-1888), Army officer and politician. 1 Portrait
- John Arthur Malcolm Aldridge (1905-1983), Painter and illustrator. 2 Portraits
- Rodney ('Rod') Aldridge (1947-), Executive Chairman, The Capita Group plc. 1 Portrait
- William Aldridge (1584-1698), Centenarian. 1 Portrait
- Ulisse Aldrovandi (1522-1605), Italian naturalist, collector and writer. 1 Portrait
- Lady Mary Catherine Henrietta Aldworth (née Bernard) (1837-1920), Wife of Richard William Aldworth; daughter of 3rd Earl of Bandon. 1 Portrait
- Frank Aldworth (active 1933). 1 Portrait
- Igor Aleksander (1937-), Head of Intelligent and Interactive Systems at Imperial College. 1 Portrait
- Jean le Rond d'Alembert (1717-1783), Encyclopaedist. 1 Portrait
- Sophie, Duchess of Alençon (1847-1897), Wife of Prince Ferdinand, Duke of Alençon; daughter of Duke Maximilian Joseph in Bavaria. 1 Portrait
- Nigel Clinton Alers-Hankey (1912-1941), Pilot officer; son of Eric Alers-Hankey. 1 Portrait
- Pope Alexander III (Rolando Bandinelli) (circa 1105-1181), Pope 1159-1181. 1 Portrait
- Alexander I, Tsar of Russia (1777-1825), Reigned 1801-25. 4 Portraits
- Alexander II, Emperor of Russia (1818-1881), Reigned 1855-81. 9 Portraits
- Alexander III, Emperor of Russia (1845-1894), Reigned 1881-94. 11 Portraits
- Alexander, Prince of Bulgaria (1857-1893), Army commander; son of Prince Alexander of Hesse and by Rhine. 1 Portrait
- Prince Alexander Cambridge, Earl of Athlone (1874-1957), Army officer and Governor-General of South Africa and of Canada. 36 Portraits
- Alexander I, King of Serbia (1876-1903), Reigned 1889-1903. 1 Portrait
- Alexander, King of Greece (1893-1920), Reigned 1917-20. 2 Portraits
- King Alexander of Yugoslavia (1900-1934), Ruler of Yugoslavia and Crown Prince of Serbia. 1 Portrait
- Prince Alexander Obolensky (1916-1940), Rugby player; son of Prince Serge Obolensky. 8 Portraits
- Alexander, Crown Prince of Yugoslavia (1945-), Son of King Peter II of Yugoslavia and Queen Alexandra. 1 Portrait
- Albert Victor Alexander, Earl Alexander of Hillsborough (1885-1965), Politician, First Lord of the Admiralty and Minister of Defence. 31 Portraits
- Harold Rupert Leofric George Alexander, 1st Earl Alexander of Tunis (1891-1969), Field Marshal. 46 Portraits
- Lady Margaret Diana (née Bingham), Countess Alexander of Tunis (1905-1977), Justice of the Peace; wife of 1st Earl Alexander of Tunis; daughter of 5th Earl of Lucan. 2 Portraits
- Shane William Desmond Alexander, 2nd Earl Alexander of Tunis (1935-), Lieutenant and businessman. 2 Portraits
- Davina Mary Alexander (née Woodhouse), Countess Alexander of Tunis (1955-), Lady-in-Waiting to Princess Margaret and second wife of 2nd Earl Alexander of Tunis. 7 Portraits
- Robert Scott Alexander, Baron Alexander of Weedon (1936-2005), Barrister, banker and politician. 8 Portraits
- Lady Emily Harriet Catherine Alexander (née St Lawrence) (1854-1931), Wife of James Dalison Alexander; daughter of 9th Earl Cork and Orrery. 5 Portraits
- Lady Mary Beatrice Alexander (née Thynne) (1903-1974), Royal courtier; former wife of 3rd Baron Nunburnholme, and later wife of Sir (James) Ulick Francis Canning Alexander; daughter of 5th Marquess of Bath. 20 Portraits
- Alexander Alexander (active 1830), Scottish traveller. 2 Portraits
- Archibald Alexander (1812-1883), Army surgeon and Deputy Inspector-General of Hospitals for Scotland. 1 Portrait
- Mrs Alexander, Possibly wife of Archibald Alexander (1812-1883). 1 Portrait
- Bill Alexander (1910-2000), Committee member of the International Brigade Association; Chemist. 1 Portrait
- Hon. Brian James Alexander (1939-), Son of 1st Earl Alexander of Tunis. 2 Portraits
- Daniel Asher Alexander (1768-1846), Architect. 1 Portrait
- Denis James Alexander (1920-1980), Major. 2 Portraits
- Douglas Garven Alexander (1967-), Politician; MP and Shadow Foreign Secretary. 1 Portrait
- Elizabeth Alexander (1702-1806), Centenarian. 2 Portraits
- Elsa Mary (née Collett), Lady Alexander (1894-1959), Daughter of Sir Charles Collett, 1st Bt; wife of Sir Frank (Samuel) Alexander, 1st Bt. 1 Portrait
- Florence Jane (née Théleur), Lady Alexander (1857 or 1858-1946), Wife of actor Sir George Alexander; daughter of Edward Théleur. 10 Portraits
- Sir Frank Samuel Alexander, 1st Bt (1881-1959), Shipbroker and shipowner. 13 Portraits
- Fyfe Alexander (Active early 1900s), Actress. 1 Portrait
- Georg Alexander (1888-1945), Actor. 1 Portrait
- Sir George Alexander (George Samson) (1858-1918), Actor and theatre manager. 59 Portraits
- George William Alexander (1802-1890), Financier and philanthropist; Treasurer of the British and Foreign Anti-Slavery Society. 4 Portraits
- Gordon Alexander, Stuntman. 1 Portrait
- Dame Helen Alexander (1957-2017), Chairman of UBM plc and President of CBI. 1 Portrait
- Sir Henry Alexander (1875-1940), Lord Provost of Aberdeen and free press editor. 2 Portraits
- Henry Templer Alexander (1911-1977), Major-General. 6 Portraits
- Hon. Herbrand Charles Alexander (1888-1965), Lieutenant-Colonel; son of 4th Earl of Caledon. 4 Portraits
- James Edward Alexander (1803-1885), Soldier and author. 1 Portrait
- Janet Alexander (1880-1961), Actress. 9 Portraits
- John Alexander (1792-1868), Minister of Prince's St Chapel, Norwich. 2 Portraits
- John Alexander (active 1830). 2 Portraits
- John Henry Alexander. 1 Portrait
- J. Alexander (active 1830). 2 Portraits
- Margaret Katharine Alexander (née Grimston) (1858-1929), Wife of Hon. Walter Philip Alexander; daughter of Hon. Francis Sylvester Grimston. 1 Portrait
- Maurice Alexander (1889-1945), Canadian barrister, soldier and English politician and diplomat. 1 Portrait
- Pat Alexander, Tavern keeper. 1 Portrait
- Peter Alexander (died 1969), Regius Professor of English Language and Literature. 1 Portrait
- Robert Alexander (1795-1854), Editor and newspaper proprietor. 1 Portrait
- Robert Alexander (1840-1923), Scottish painter of dogs and horses. 2 Portraits
- Robert Love Alexander (1913-1993), Rear-Admiral. 1 Portrait
- (Robert) McNeill Alexander (1934-2016), Professor of Zoology, University of Leeds. 1 Portrait
- Samuel Alexander (1859-1938), Philosopher. 5 Portraits
- Sarah Alexander (1971-), Television presenter and actress. 1 Portrait
- Sidney Arthur Alexander (1866-1948), Canon and Treasurer of St Paul's Cathedral. 3 Portraits
- Stanley Walter Alexander (1895-1980), Financial journalist and editor. 6 Portraits
- Steve Alexander (1962-), Drummer; member of Brother Beyond. 1 Portrait
- Sir Ulick Alexander (1889-1973), Extra Equerry to the Queen. 3 Portraits
- Mrs Walter Alexander, Wife of Walter Alexander. 2 Portraits
- Sir William Alexander (1874-1954), Brigadier-General. 3 Portraits
- William Alexander (1824-1911), Anglican Archbishop of Armagh. 5 Portraits
- Sir William Alexander (active 1950s-1960s). 1 Portrait
- William Lindsay Alexander (1808-1884), Congregational minister. 2 Portraits
- Mrs Alexander (Annie Hector (née French)) (1825-1902), Novelist. 1 Portrait
- Prince Alexander Peter Galitzine (1945-), Son of Prince George Galitzine. 1 Portrait
- Sir Edwyn Sinclair Alexander-Sinclair (1865-1945), Admiral. 3 Portraits
- Princess Alexandra of Saxe-Altenburg (Grand Duchess Alexandra Iosifovna of Russia) (1830-1911), Wife of Grand Duke Constantine Nikolaevich of Russia; daughter of Joseph Georg Friedrich Ernst Karl, Duke of Saxe-Altenburg. 1 Portrait
- Queen Alexandra (1844-1925), Queen of Edward VII. 476 Portraits
- Alexandra, Empress of Russia (née Princess Alix of Hesse and by Rhine) (1872-1918), Consort of Nicholas II, Emperor of Russia; daughter of Princess Alice and granddaughter of Queen Victoria. 18 Portraits
- Princess Alexandra of Hohenlohe-Langenburg (1878-1942), Red Cross nurse; daughter of Prince Alfred, Duke of Edinburgh; wife of Prince Ernst of Hohenlohe-Langenburg. 17 Portraits
- Princess Alexandra of Hanover and Cumberland (later Grand Duchess of Mecklenburg-Schwerin) (1882-1963), Wife of Frederick Francis IV, Grand Duke of Mecklenburg-Schwerin; daughter of Ernest Augustus, Crown Prince of Hanover and 3rd Duke of Cumberland and Teviotdale. 2 Portraits
- Princess Alexandra, Princess Arthur of Connaught (1891-1959), Wife of Prince Arthur of Connaught; daughter of Princess Louise, Duchess of Fife. 28 Portraits
- Alexandra, Queen of Yugoslavia (1921-1993), Wife of Peter II, King of Yugoslavia. 1 Portrait
- Princess Alexandra, Lady Ogilvy (1936-), Cousin of Queen Elizabeth II; wife of Sir Angus Ogilvy. 75 Portraits
- Princess Alexandra Pavlovna Galitzine (1905-2006), Previous wife of Rostislav Alexandrovich Romanov; daughter of Prince Paul Pavlovitch Galitzine. 5 Portraits
- Queen Alexandrine of Denmark (née Crown Princess Alexandrine of Mecklenburg-Schwerin) (1879-1952), Consort of King Christian X of Denmark. 5 Portraits
- George Alexandrovich, Grand Duke of Russia (1871-1899), Son of Alexander III, Emperor of Russia. 2 Portraits
- Michael Alexandrovich, Grand Duke of Russia (1878-1918), Soldier; son of Alexander III, Emperor of Russia. 3 Portraits
- Madame Olga Alexeeva, Russian Dancer. 7 Portraits
- Alexei Alexandrovich, Grand Duke of Russia (1850-1908), Naval commander; son of Alexander II, Emperor of Russia. 3 Portraits
- Alexei, Tsarevich and Grand Duke of Russia (1904-1918), Heir apparent; son of Nicholas II, Emperor of Russia. 7 Portraits
- Prince Alexis Obolensky (1883-1942), Singer. 3 Portraits
- R.A. Alexis. 5 Portraits
- Frederick John Alfieri (1892-1961), Major-General. 3 Portraits
- Vittorio Alfieri (1749-1803), Poet. 3 Portraits
- Alfonso XII, King of Spain (1857-1885), Reigned 1874-85. 2 Portraits
- Alfonso XIII, King of Spain (1886-1941), Reigned 1886-1931. 22 Portraits
- Alfonso, Prince of Asturias (1907-1938), Count of Covadonga; Son of Alfonso XIII. 7 Portraits
- Marianne Margaret Egerton (née Compton), Viscountess Alford ('Lady Marian Alford') (1817-1888), Art patron and writer on needlework; first wife of John Hume Cust, Viscount Alford; daughter of 2nd Marquess of Northampton. 7 Portraits
- Charles Richard Alford (1816-1898), Bishop of Victoria, Hong Kong. 1 Portrait
- Henry Alford (1810-1871), Dean of Canterbury and biblical scholar. 6 Portraits
- Ian Francis Onslow Alford (1921-2008), Commander, Royal Navy; son of F.R. Alford. 2 Portraits
- (Edward) John Gregory Alford (1890-1960), Art historian. 1 Portrait
- Sir Robert Edmund Alford (1904-1979), Colonial administrator. 2 Portraits
- King Alfred ('The Great') (849-899), King of the West Saxons. 13 Portraits
- Prince Alfred (1780-1782), Son of George III. 4 Portraits
- Prince Alfred, Duke of Edinburgh and Saxe-Coburg and Gotha (1844-1900), Naval officer; second son of Queen Victoria. 78 Portraits
- Prince Alfred of Saxe-Coburg and Gotha (1874-1899), Only son of Prince Alfred, Duke of Edinburgh. 7 Portraits
- Alfred, Count D'Orsay (1801-1852), Amateur artist and man of fashion. 13 Portraits
- Youly Algaroff (1918-1995), Ballet dancer. 1 Portrait
- Prince Ali Khan. 1 Portrait
- Abdullah Yusuf Ali (1872-1953), Barrister and lecturer. 2 Portraits
- Hoda Ali, Nurse and human rights activist. 1 Portrait
- Mohammed Ali (1909-1963), Prime Minister of Pakistan. 4 Portraits
- Monica Ali (1967-), Novelist. 1 Portrait
- Muhammad Ali (1942-2016), Boxer; heavyweight champion and Olympian. 3 Portraits
- Pasha Mehemet Ali (1769-1849), Egyptian ruler. 2 Portraits
- Saiyid Ameer Ali (1849-1928), Judge and Muslim leader in India. 5 Portraits
- Tariq Ali (1943-), Student activist; writer and film producer. 3 Portraits
- Lady Allia Abbas Ali Baig, Daughter of Shaikh Ali Abdulla, Uncle of the Sultan of Bahrain. 1 Portrait
- Princess Alice, Grand Duchess of Hesse (1843-1878), Third child of Queen Victoria; wife of Louis IV, Grand Duke of Hesse and by Rhine. 109 Portraits
- Princess Alice, Countess of Athlone (1883-1981), Granddaughter of Queen Victoria and diplomatic service wife. 28 Portraits
- Princess Alice of Greece and Denmark (1885-1969), Wife of Prince Andrew of Greece and Denmark; mother of Prince Philip, Duke of Edinburgh. 26 Portraits
- Princess Alice, Duchess of Gloucester (1901-2004), Wife of Prince Henry, Duke of Gloucester; daughter of 7th Duke of Buccleuch and 9th Duke of Queensberry. 136 Portraits
- Prince Naseem (Naseem Salom Ali Hamed) (1974-), Boxer. 1 Portrait
- Nawab Nasim Mansur Ali Khan of Bengal (1830-1884), Nawab Nizam of Bengal, Bihar and Orissa. 1 Portrait
- Artem Alikhanian (1908-1978), Physicist and first director of the Yerevan Physics Institute. 1 Portrait
- Marina Alikhanian, Wife of Artem Alikhanian. 1 Portrait
- Henry Gerard Sturt, 1st Baron Alington (1825-1904), Politician, sportsman and landowner. 3 Portraits
- Augusta Sturt (née Lady Bingham), Baroness Alington of Criche (1832-1888), First wife of 1st Baron Alington; daughter of 3rd Earl of Lucan. 2 Portraits
- Evelyn Henrietta (née Leigh), Lady Alington (1858-1939), Second wife of 1st Baron Alington; daughter of Henry Blundell Leigh. 1 Portrait
- Humphrey Napier Sturt, 2nd Baron Alington (1859-1919), Landowner and Conservative politician; MP for East Dorset. 1 Portrait
- Mary Sibell Sturt (née Ashley-Cooper), Lady Alington (1902-1936), Wife of 3rd Baron Alington; daughter of 9th Earl of Shaftesbury. 4 Portraits
- Adrian Richard Alington (1895-1958), Author. 3 Portraits
- Cyril Argentine Alington (1872-1955), Headmaster and dean of Durham. 3 Portraits
- Sir Giles Alington (1572-1638), Landowner. 1 Portrait
- Julius Alington (1836-1905), Landowner. 1 Portrait
- Kathleen Alington. 4 Portraits
- Archibald Alison (1757-1839), Prebendary of Salisbury Cathedral; author of 'Essays on Taste'. 3 Portraits
- Sir Archibald Alison, 1st Bt (1792-1867), Historian and lawyer. 8 Portraits
- Sir Archibald Alison, 2nd Bt (1826-1907), General. 2 Portraits
- (Sarah) Georgina (née Campbell), Lady Alison (died 1939), Wife of Sir Archibald Alison, 3rd Bt. 2 Portraits
- Michael James Hugh Alison (1926-2004), Politician; MP for Barkston Ash and Selby. 9 Portraits
- William Pulteney Alison (1790-1859), Physician. 4 Portraits
- Colonel Alison. 1 Portrait
- Lady Ali Khan Zulfikar (1881-1974), Wife of Sir Ali Khan Zulfikar. 2 Portraits
- Ali Al-Karim, Sultan of Lahej (born circa 1922), Deposed Sultan of Lahej (Yemen) 1952-58. 1 Portrait
- Jim Al-Khalili (1962-), Theoretical Nuclear Physicist. 1 Portrait
- Risk Allah Bey, Soldier and medical officer. 1 Portrait
- John Hillary Allaire (died 1866), Army officer. 2 Portraits
- Robert Alexander Allan, Baron Allan of Kilmahew (1914-1979), Politician and shipowner. 4 Portraits
- Ann Allan (née Nicholson) (1741-1787), First wife of George Allan. 1 Portrait
- Anthony David ('Tony') Allan (1964-), Businessman. 1 Portrait
- Charles Allan (1852-1911), Actor. 1 Portrait
- Elizabeth Allan (1910-1990), Actress. 4 Portraits
- George Allan (1736-1800), Antiquary and topographer. 2 Portraits
- Maud Allan (1873-1956), Dancer. 14 Portraits
- Mrs Robert Allan, Wife of Robert Allan. 1 Portrait
- Sir William Allan (1782-1850), Painter and engraver; President of the Royal Scottish Academy. 7 Portraits
- Sir William Allan (1837-1903), Engineer and politician. 2 Portraits
- Christopher Gibson Allanby (1836-1917), Archdeacon. 1 Portrait
- John Valentine Allanson-Winn (1904-1972), Fourth son of Rowland George Allanson Allanson-Winn, 5th Baron Headley. 6 Portraits
- Robert Barclay Allardice (1779-1854), Pedestrian. 5 Portraits
- Elsie Elizabeth (née Stewart), Lady Allardyce (active 1922), Former wife of Adam Goodfellow, and later wife of Sir William Lamond Allardyce; daughter of James Stewart. 5 Portraits
- Sir William Lamond Allardyce (1861-1930), Commissioner and colonial secretary. 2 Portraits
- James Harry Allason (1912-2011), Lieutenant-Colonel, sportsman and Conservative politician; MP for Hemel Hempstead. 6 Portraits
- Theodore Edward le Bouthillier ('Ted') Allbeury (1917-2005), Spy novelist. 1 Portrait
- Sir Thomas Clifford Allbutt (1836-1925), Professor of Physic, University of Cambridge. 2 Portraits
- Sir Geoffrey Cuthbert Allchin (1895-1968), Ambassador. 1 Portrait
- Eric Allden (1886-1949), Traveller, cultural attaché and civil servant. 1 Portrait
- Eve Allderidge (née Collyer) (1935-), Student at New Hall College, Cambridge; wife of Michael Allderidge. 1 Portrait
- Maddalena Allegranti (1755-1829), Italian soprano. 2 Portraits
- Marc Allégret (1900-1973), Film director. 2 Portraits
- Joshua William Allen, 6th Viscount Allen (1791-1845), Soldier. 4 Portraits
- Philip Allen, Baron Allen of Abbeydale (1912-2007), Second Secretary to HM Treasury. 1 Portrait
- (Reginald) Clifford Allen, 1st Baron Allen of Hurtwood (1889-1939), Politician, pacifist and Chairman of the No-Conscription Fellowship in the Great War. 5 Portraits
- Lady Phyllis Edith Allen (née King) (1897-1947), Wife of William Edward David Allen; daughter of 3rd Earl of Lovelace. 8 Portraits
- Abigail Mary Allen (née Naylor) (active 1807-1829), Housemaid; wife of James Allen (1787-1829). 1 Portrait
- Ada Rosalie Elizabeth Allen (née Mason), Lady Brookes (1862-1933), Wife of Sir Harry Brookes Allen; daughter of Henry Mason. 3 Portraits
- Adrianne Allen (Adrianne Massey) (1907-1993), Actress; second wife of Raymond Massey; daughter of John Allen. 14 Portraits
- Agnes Allen (died 1959), Author and illustrator. 3 Portraits
- Angela Allen (1929-), Film script supervisor. 1 Portrait
- Archibald J.Allen, Mayor of Kensington. 2 Portraits
- Arthur Acland Allen (1868-1939), Politician; MP for Christchurch and Dunbartonshire. 2 Portraits
- Sir Bertram Cowles Allen (1875-1957), Rear-Admiral. 1 Portrait
- Brian Allen (1952-), Chairman, Hazlitt, Gooden & Fox. 1 Portrait
- Sir Carleton Kemp Allen (1887-1966), Legal scholar; author of 'Democracy and the Individual'. 4 Portraits
- Charles John Allen (1862-1956), Sculptor. 0 Portraits
- Charles Peter Allen (1861-1930), Politician, newspaper proprietor and barrister-at-law. 2 Portraits
- Clive John Allen (1926-2016), Owner of Rood's Jewellers. 1 Portrait
- Dave Allen (David Tynan O'Mahoney) (1936-2005), Comedian. 1 Portrait
- Sir (William) Denis Allen (1910-1987), Diplomat. 1 Portrait
- Sir Donald Richard Allen (1894-1983), Clerk to Trustees of London Parochial Charities. 2 Portraits
- Edgar Johnson Allen (1866-1942), Marine biologist. 2 Portraits
- Elias Allen (circa 1588-1653), Mathematical instrument maker. 2 Portraits
- Sir Francis Raymond Allen, 2nd Bt (1910-1939), Son of Sir Frederick Charles Allen. 3 Portraits
- Sir Geoffrey Allen (1928-), Chemist and academic. 1 Portrait
- Geoffrey Francis Allen (1902-1982), Bishop of Derby and Bishop of Egypt. 14 Portraits
- Sir (Albert) George Allen (1888-1956), Private Solicitor to King Edward VIII. 1 Portrait
- George Cyril Allen (1900-1982), Economist, Emeritus Professor of Political Economy. 8 Portraits
- Sir George Vance Allen (1894-1970), Bacteriologist. 1 Portrait
- (Charles) Grant Blairfindie Allen (1848-1899), Writer on science and novelist. 4 Portraits
- Sir George Oswald Browning ('Gubby') Allen (1902-1989), Cricketer and cricket administrator. 4 Portraits
- Harold Gwynne Allen (1874-1960), Justice of the Peace and High Sheriff, Bedfordshire. 1 Portrait
- Herbert Stanley Allen (1873-1954), Professor of Natural Philosophy. 1 Portrait
- Sir Hugh Percy Allen (1869-1946), Musicologist and conductor. 11 Portraits
- James Allen (1787-1829), Groom, labourer and female husband of Abigail Mary Allen (née Naylor). 1 Portrait
- Sir James Allen (1855-1942), New Zealand statesman. 6 Portraits
- John Allen (1771-1843), Historian and resident physician at Holland House. 1 Portrait
- John Frank Allen (1908-2001), Physicist. 4 Portraits
- Sir John Sandeman Allen (1865-1935), Conservative politician; MP for Liverpool West Derby. 3 Portraits
- John William Allen (1853-1937), of Messrs Longmans, Green & Company. 1 Portrait
- Keith Philip George Allen (1953-), Actor, comedian, songwriter and singer. 1 Portrait
- Kitty Allen, Actress. 1 Portrait
- Lancelot Baugh Allen (1775-1845), Master of Dulwich College, London Police Magistrate. 2 Portraits
- Lily Allen (1985-), Singer and songwriter. 2 Portraits
- Mary Hope Allen (1898-2001), Journalist and Producer for BBC Radio, Drama and Features department. 1 Portrait
- Mary Sophia Allen (1878-1964), Founder and Commandant of Women Police in London. 1 Portrait
- Percy B. Allen (1913-1992), New Zealand farmer and politician. 1 Portrait
- Percy Stafford Allen (1869-1933), President of Corpus Christi College, Oxford. 10 Portraits
- Ralph Allen (1694-1763), Philanthropist; known as 'The Man of Bath'. 5 Portraits
- Ralph Shuttleworth Allen (1817-1887), Politician and Major. 1 Portrait
- Richard Allen (1787-1873), Draper, philanthropist and slavery abolitionist. 4 Portraits
- Richard Allen (1933-1999), Artist. 1 Portrait
- Sir Richard Hugh Sedley Allen (1903-1996), British ambassador to Burma. 2 Portraits
- Sir Richard William Allen (1867-1955), Chairman of W. H. Allen, Sons & Co. 1 Portrait
- Richard John Cyril ('Rick') Allen (1963-), Drummer; member of Def Leppard. 1 Portrait
- Sir Roger Allen (1909-1972), Diplomat. 1 Portrait
- Sir Ronald Wilberforce Allen (1889-1936), Politician and lawyer. 3 Portraits
- Sir Roy George Douglas Allen (1906-1983), Professor of Statistics. 1 Portrait
- Stafford Allen (1806-1889), Industrialist and slavery abolitionist. 4 Portraits
- Sydney Scholefield Allen (1898-1974), Politician, soldier and barrister. 3 Portraits
- Sylvia Allen (née Wingate-Saul) (1908-1951), Wife of Peter Allen. 2 Portraits
- Thomas Allen (1540?-1632), Mathematician and antiquary. 1 Portrait
- Sir Thomas Allen (1944-), Opera singer. 1 Portrait
- Thomas William Allen (1862-1950), Fellow of the British Academy. 1 Portrait
- Violet Mary Stella Allen (née Aldsworth), Second wife of A.J. Whitacre Allen. 1 Portrait
- Walter Ernest Allen (1911-1995), Author, journalist and broadcaster. 1 Portrait
- Walter Godfrey Allen (1891-1986), Architect. 4 Portraits
- Sir Walter Macarthur Allen (1870-1943), Commandant-in-Chief Metropolitan Special Constabulary. 5 Portraits
- Sir William Allen (1866-1947), Lieutenant-Colonel and politician. 3 Portraits
- William Allen (1793-1864), Rear-Admiral. 1 Portrait
- William Allen (1770-1843), Chemist and philanthropist. 9 Portraits
- William Allen (1532-1594), Cardinal. 6 Portraits
- William Gilbert Allen (1892-1970), Chartered accountant. 1 Portrait
- Sir (William) Kenneth Gwynne Allen (1907-2000), Engineer and president of the British Engineers Association. 2 Portraits
- William Philip Allen (1888-1958), British Transport Commission. 1 Portrait
- Woody Allen (1935-), Actor, writer and film director. 1 Portrait
- W. Allen. 1 Portrait
- Edmund Henry Hynman Allenby, 1st Viscount Allenby (1861-1936), Field Marshal. 38 Portraits
- Adelaide Mabel Allenby (née Chapman), Viscountess Allenby of Megiddo (died 1942), Wife of 1st Viscount Allenby of Megiddo. 9 Portraits
- Gertrude Mary Lethbridge (née Champneys), Viscountess Allenby (active 1930-1949), First wife of 2nd Viscount Allenby. 5 Portraits
- Frederick Claude Hynman Allenby (1864-1934), Royal Naval officer. 1 Portrait
- Michael Jaffray Hynman Allenby (1931-), Soldier. 5 Portraits
- (David Howard) Nicholas Allenby (1909-1995), Bishop. 3 Portraits
- Alexandria Louis Maud (née Vane-Tempest-Stewart), Viscountess Allendale (1863-1945), Wife of 1st Viscount Allendale; daughter of 5th Marquess of Londonderry. 4 Portraits
- Wentworth Henry Canning Beaumont, 2nd Viscount Allendale (1890-1956), British peer; Lord Lieutenant of Northumberland; army captain. 1 Portrait
- G. Mander Allender. 1 Portrait
- Lizzie Allen Harker (née Watson) (1863-1933), Novelist and playwright; wife of James Allen Harker. 3 Portraits
- Sir Arthur John Allen-Williams (1869-1949), Brigadier-General. 3 Portraits
- William Lawies Jackson, 1st Baron Allerton (1840-1917), Politician and businessman. 4 Portraits
- C. Allesham or Alleston (active 1830s). 1 Portrait
- Richard Allestree (1619-1681), Royalist divine and provost of Eton College. 5 Portraits
- Edward Alleyn (1566-1626), Actor and founder of Dulwich College. 4 Portraits
- Alice Violet (née Campbell), Lady Alleyne (died 1985), Wife of Sir John Meynell Alleyne, 4th Bt; daughter of James Campbell. 3 Portraits
- Elizabeth Allgood (née Clayton) (died 1874), Wife of George Allgood; daughter of Richard Clayton. 1 Portrait
- George Allgood (1827-1907), Army officer. 1 Portrait
- Lancelot John Hunter Allgood (1823-1885), Army officer. 1 Portrait
- Captain Allgood. 1 Portrait
- Hon. Claudia Violet Allhusen (née Betterton) (1917-2009), Wife of Derek Swithin Allhusen; daughter of 1st and last Baron Rushcliffe. 15 Portraits
- Derek Swithin Allhusen (1914-2000), Farmer, soldier and equestrian; Olympian. 12 Portraits
- Henry Christian Allhusen (1835-1871), Chemical manufacturer and Lieutenant-Colonel. 1 Portrait
- Michael Christian Allhusen (1938-1960), Son of Derek Swithin Allhusen. 12 Portraits
- O. Allhusen. 3 Portraits
- Timothy Frederick Allhusen (1942-), Son of Derek Swithin Allhusen. 12 Portraits
- Waheed Alli, Baron Alli (1964-), Television producer and politician. 2 Portraits
- Thomas Edward Allibone (1903-2003), Professor of Electrical Engineering. 1 Portrait
- Edward Hall Allies (1841-1899), Engineer. 1 Portrait
- Mr Allies. 1 Portrait
- Frederic Allin (active 1845), Dissenting minister. 2 Portraits
- G.E. Allin. 2 Portraits
- Rose Allin (Allyn) (circa 1537-1557), Martyr; daughter of Alyce Mount. 1 Portrait
- Sir Thomas Allin, 1st Bt (baptised 1612-1685), Naval officer. 3 Portraits
- Henry William Allingham (1896-2009), Aircraft mechanic and car designer; World War I veteran and centenarian. 1 Portrait
- Joyce Allingham (1913-2001), Photographer, publishing secretary and business manager; daughter of Herbert John Allingham; sister of Margery Allingham. 1 Portrait
- Margery Louise Allingham (1904-1966), Crime writer and novelist. 48 Portraits
- William Allingham (1824-1889), Poet. 3 Portraits
- Hilderband Allington, 3rd Lord Allington of Killard (1641-1723), Nobleman. 1 Portrait
- William Allington, Lord Allington, Landowner. 1 Portrait
- Edward Allington (1951-2017), Artist. 1 Portrait
- Thomas Richard Allinson (1858-1918), Dietitian and businessman. 1 Portrait
- Percy Allis (1897-1975), Golfer. 3 Portraits
- Christopher John Allison (1962-), Assistant Commissioner, Metropolitan Police; National Olympic Security Co-ordinator, London 2012. 1 Portrait
- George Frederick Allison (1883-1957), Football manager, journalist and broadcaster. 5 Portraits
- Olive Claude Allison (1908-1989), Bishop of Sudan. 1 Portrait
- Philip Rowland Allison (1907-1974), Consulting surgeon. 16 Portraits
- Sir Richard John Allison (1869-1958), Architect. 1 Portrait
- Richard Sydney Allison (1899-1978), Neurologist. 6 Portraits
- Sherard Falkner Allison (1907-1993), Bishop of Winchester. 3 Portraits
- Frederick Prat Alliston (1832-1912), Alderman of the City of London. 6 Portraits
- John Alliston (1781-1855). 2 Portraits
- Charles Allix (1787-1862), Colonel. 1 Portrait
- Hon. Hilda Allix (née Strutt) (1879-1923), Wife of Charles Israel Loraine Allix; daughter of 2nd Baron Belper. 2 Portraits
- George James Allman (1812-1898), Botanist and zoologist. 4 Portraits
- Hannah Louisa Allman (née Shaen) (died 1890), Wife of George James Allman; daughter of Samuel Shaen. 1 Portrait
- Arthur John Allmand (1885-1951), Professor of Chemistry. 3 Portraits
- Gillian Allnutt (1949-), Poet. 1 Portrait
- Sir Charles Carrick Allom (1865-1947), Architect. 2 Portraits
- Henry Allon (1818-1892), Congregational minister and leader. 5 Portraits
- Eric Newmarch Allott (1899-1980), Consultant Adviser in Chemical Pathology, Ministry of Health. 7 Portraits
- Lawrence Alloway (1926-1990), Gallerist and critic. 1 Portrait
- Mr Alloway (active 1860), Army officer. 1 Portrait
- Kenneth Peter Allpress (died 1968), Company chairman. 1 Portrait
- Hon. Alfred Percy Allsop (1861-1929), Soldier, politician and Mayor of Worcester; 7th son of 1st Baron Hindlip. 5 Portraits
- George Allsop (1864-1927), South African cricketer. 1 Portrait
- Hon. George Higginson Allsopp (1846-1907), Politician and company director; son of 1st Baron Hindlip. 8 Portraits
- Hon. Norah Hyacinthe Allsopp (née Littleton) (1899-1997), Wife of Samuel Ranulph Allsopp; daughter of 4th Baron Hatherton. 5 Portraits
- Antonio ('Tony') Ally (1973-), Diver; Olympian. 1 Portrait
- William Almack (1741-1781), Founder of Almack's Ballroom. 1 Portrait
- Laura Theresa (née Epps), Lady Alma-Tadema (1852-1909), Painter; second wife of Sir Lawrence Alma-Tadema; daughter of George Napoleon Epps. 4 Portraits
- Sir Lawrence Alma-Tadema (1836-1912), Painter. 40 Portraits
- Edith Martha ('E.M.') Almedingen (Marta Aleksandrovna Almedingen) (1898-1971), Novelist, biographer and children's author. 7 Portraits
- Magda Almo, Actress and operetta singer. 3 Portraits
- Darren Almond (1971-), Artist. 1 Portrait
- Eleanora Mary Almond, Classical lecturer, Westfield College, London. 2 Portraits
- Marc Almond (1957-), Musician, singer and songwriter for 'Soft Cell'. 3 Portraits
- Robert Munro, 1st Baron Alness (1868-1955), Judge and Liberal politician; Secretary for Scotland. 20 Portraits
- Olga Marie Munro (née Grumler), Lady Alness (1897-1981), Second wife of Robert Munro, Baron Alness. 6 Portraits
- Prince Aloys Alexander ('Louis') von Schonburg-Hartenstein (1906-1998), Son of Prince Johannes Aloys Otto von Schönburg-Hartenstein. 5 Portraits
- Frank Theodore Alpe (died 1952), Lawyer, judge and Recorder of Borough of Great Yarmouth. 2 Portraits
- Prince Alphonse de Chimay (1899-1973), Lieutenant-Colonel. 3 Portraits
- Cuthbert James McCall ('Cub') Alport, Baron Alport (1912-1998), Politician; MP for Colchester. 12 Portraits
- Rachel Cecilia (née Bingham), Lady Alport (1917-1983), Wife of Baron Alport; daughter of Ralph Charles Bingham; granddaughter of 4th Earl of Lucan. 11 Portraits
- Thomas Massa Alsager (1779-1846), Journalist and musician. 2 Portraits
- Sayyid Sir Abdullah bin Khalifa Al-Said (1910-1963), Sultan of Zanzibar. 3 Portraits
- Carlton Alsop (1900-1979), Radio producer. 1 Portrait
- George Alsop (1638-1673), Writer. 5 Portraits
- Robert Alsop (died 1785), Alderman. 1 Portrait
- Thomas Alsop (active 1540s-died 1557), Apothecary to King Henry VIII. 1 Portrait
- William Allen Alsop (1947-2018), Architect. 5 Portraits
- Annie Alstead (née Deakin), Wife of Robert Alstead. 3 Portraits
- Robert Alstead (1873-1946), Politician and Mayor of Wigan. 2 Portraits
- Stanley Alstead (1905-1992), Physician; President of the Royal College of Physicians and Surgeons of Glasgow. 7 Portraits
- Arthur Fawssett Alston (1872-1954), Archdeacon of Hastings. 1 Portrait
- Sir Beilby Francis Alston (1868-1929), Diplomat. 1 Portrait
- Cedric Rowland Alston (died 1963), Lieutenant-Colonel. 1 Portrait
- Sir Francis Beilby Alston (1820-1905), Diplomat. 1 Portrait
- Francis George Alston (1878-1961), Brigadier-General. 1 Portrait
- Sir Charles Alten, Count von Alten (1764-1840), Hanoverian general. 3 Portraits
- Margaret (née Baring), Viscountess Althorp (1868-1906), Wife of Viscount Althorp (later 6th Earl Spencer); daughter of 1st Baron Revelstoke. 1 Portrait
- Gerald ('Gerry') Altmann (1960-), Psychologist; expert in the psychology of language. 1 Portrait
- Peter Altmeier (1899-1977), German politician. 1 Portrait
- David Patrick Alton, Baron Alton of Liverpool (1951-), Politician; Liberal Chief Whip. 1 Portrait
- Bindo AltovitI (1491-1556), Banker. 1 Portrait
- Edward William Macleay Grigg, 1st Baron Altrincham (1879-1955), Colonial administrator, politician and editor of the 'National Review'. 14 Portraits
- Joan Alice Katherine (née Dickson-Poynder), Lady Altrincham (1897-1987), Wife of 1st Baron Altrincham; daughter of 1st Baron Islington. 2 Portraits
- John Edward Poynder Grigg, 2nd Baron Altrincham (1924-2001), Journalist and historian. 3 Portraits
- Jeannette Altwegg (1930-), Ice skater; Olympian. 1 Portrait
- Richard Pepper Arden, 1st Baron Alvanley (1744-1804), Judge. 14 Portraits
- William Arden, 2nd Baron Alvanley (1789-1849), Soldier. 4 Portraits
- Vincenti Alvar (died 1606), Jesuit Missionary. 1 Portrait
- Alfred ('Al') Alvarez (1929-), Poet, critic and broadcaster. 1 Portrait
- Alvarus (died 1571), Jesuit Missionary. 1 Portrait
- Emmanuel Alvarus (died 1570), Jesuit Missionary. 1 Portrait
- Ferdinandus Alvarus (died 1571), Jesuit Missionary. 1 Portrait
- Franciscus Alvarus (died 1570), Jesuit Missionary. 1 Portrait
- Gaspar Alvarus (died 1570), Jesuit Missionary. 1 Portrait
- Richard Everard Webster, Viscount Alverstone (1842-1915), Lord Chief Justice. 16 Portraits
- Juliette Louise Alvin (1897-1982), Cellist, viola da gamba player and music therapist. 3 Portraits
- Robert Daniel Thwaites Yerburgh, 1st Baron Alvingham (1889-1955), Politician and Captain. 3 Portraits
- Olive Alwyn (née Pull), Wife of William Alwyn. 5 Portraits
- William Alwyn (1905-1985), Composer. 6 Portraits
- Amadeo I, King of Spain (1845-1890), Elected King of Spain 1870-1873. 1 Portrait
- Princess (Marie Louise Francesca) Amalie of Saxe-Coburg and Gotha, Duchess of Bavaria (1848-1894), Wife of Duke Maximilian Emanuel in Bavaria; daughter of Prince August of Saxe-Coburg and Gotha. 2 Portraits
- John Russell, Viscount Amberley (1842-1876), Politician and writer; eldest son of 1st Earl Russell. 2 Portraits
- Katherine Louisa (née Stanley), Viscountess Amberley (1842-1874), Suffragist; wife of John Russell Amberley, Viscount Amberley; daughter of 2nd Baron Stanley of Alderley. 1 Portrait
- Eric Clifford Ambler (1909-1998), Novelist. 5 Portraits
- Geoffrey Hill Ambler (1904-1978), Inventor, air force officer and amateur rower. 1 Portrait
- Emilie Ambre (died 1898), Opera singer. 1 Portrait
- Benjamin Baruch ('Bert') Ambrose (1896-1971), Bandleader and violinist. 1 Portrait
- David ('Dave') Ambrose (1945-), Musician; bassist. 1 Portrait
- Isaac Ambrose (baptised 1604-1664), Puritan divine. 1 Portrait
- Marsha Ambrosius (1976-), Singer, songwriter and member of 'Floetry'. 1 Portrait
- Mary Anne (née Clementson), Lady Amcotts-Ingilby (circa 1817-1902), Second wife of Sir William Amcotts-Ingilby, 2nd Bt; daughter of John Clementson. 1 Portrait
- Sir William Amcotts-Ingilby, 2nd Bt (1784-1854), Liberal politician; MP for Lincolnshire. 4 Portraits
- Princess Amelia Sophia Eleanora (1711-1786), Second daughter of George II. 7 Portraits
- Princess Amelia (1783-1810), Sixth daughter of George III. 9 Portraits
- (Harold) Julian Amery, Baron Amery of Lustleigh (1919-1996), Politician; Minister of State, Foreign and Commonwealth Office and RAF captain. 23 Portraits
- Colin Robert Amery (1944-), Architectural writer, critic and historian; former Director of the World Monuments Fund in Britain. 2 Portraits
- (Adeliza) Florence Amery (née Hamar Greenwood) (1881-1975), Chair of the Indian Comforts Fund; wife of Leopold Stennett Amery; daughter of John Hamar Greenwood. 1 Portrait
- John Amery (1912-1945), Film director; son of politician Leopold Amery. 4 Portraits
- Leopold Stennett Amery (1873-1955), Politician; Secretary of State for India and writer. 29 Portraits
- Sir Herbert Ames (1863-1954), Businessman, philanthropist and politician. 1 Portrait
- Joseph Ames (1689-1759), Antiquary. 3 Portraits
- Leslie Ames (1905-1990), Cricketer. 1 Portrait
- Lionel Ames (1809-1873), Landowner, Justice of the Peace and Captain. 1 Portrait
- Oswald Henry Ames (1862-1927), Soldier. 1 Portrait
- Percy W. Ames (1853-1919), Secretary of Royal Society of Literature. 1 Portrait
- Victor Charles Ames (1859-1934), Zoologist and painter. 1 Portrait
- William Ames (1576-1633), Puritan divine. 4 Portraits
- Charles Dundas, Baron Amesbury (1751-1832), Politician; MP for several constituencies. 1 Portrait
- Christopher ('Chris') Amey (1945-), Head of Visitor Services and Security, National Portrait Gallery. 1 Portrait
- Ian ('Tich') Amey (1944-), Musician; member of Dave Dee, Dozy, Beaky, Mick & Tich. 5 Portraits
- Amha Selassie I, Emperor of Ethiopia (1916-1997), Foreign dignitary; son of Haile Selassie I. 4 Portraits
- William Pitt Amherst, 1st Earl Amherst of Arracan (1773-1857), Statesman; Governor-General of India. 5 Portraits
- William Pitt Amherst, 2nd Earl Amherst of Arracan (1805-1886), Politician; MP for East Grinstead. 1 Portrait
- William Archer Amherst, 3rd Earl Amherst (1836-1910), Politician and freemason. 4 Portraits
- Eleanor Clementina (née St Aubyn), Countess Amherst (1869-1960), Wife of 4th Earl Amherst; daughter of 1st Lord St Levan. 1 Portrait
- Jeffery John Archer Amherst, 5th Earl Amherst (1896-1993), Pilot, businessman, journalist and author. 1 Portrait
- Jeffrey Amherst, 1st Baron Amherst (1717-1797), Field Marshal. 7 Portraits
- Mary Rothes Margaret Cecil, Baroness Amherst of Hackney (1857-1919), Landowner. 2 Portraits
- Hon. Humphrey William Amherst (1903-1974), District Commissioner, Gold Coast and farmer; second son of 4th Earl Amherst. 2 Portraits
- Nicholas Amhurst (1697-1742), Poet and political writer; 'Caleb D'Anvers'. 2 Portraits
- Barbara Amiel (1940-), Journalist and writer. 1 Portrait
- Bishop of Amiens, Bishop of Amiens. 1 Portrait
- Sir (Edwin) Hardy Amies (1909-2003), Couturier; dressmaker for Queen Elizabeth II; Head of Special Operations Executive in Belgium during World War II. 20 Portraits
- Peter Emanuel Amigo (1864-1949), Archbishop of Southwark. 8 Portraits
- Zori Amini (1960 or 1961-), Granddaughter of Leonard Whitley; daughter of Mahmoud Amini. 1 Portrait
- Rechavam Amir, Israel Consul-General to London. 1 Portrait
- John Preston Amis (1922-2013), Broadcaster, critic and writer. 1 Portrait
- Sir Kingsley William Amis (1922-1995), Novelist. 31 Portraits
- Martin Louis Amis (1949-), Novelist; son of Sir Kingsley Amis. 22 Portraits
- Philip Amis (1948-), Graphic designer and artist. 1 Portrait
- Sally Myfanwy Amis (1954-2000), Daughter of Sir Kingsley Amis. 1 Portrait
- J.F. Van Ammel, Captain. 3 Portraits
- Charles George Ammon, 1st Baron Ammon (1873-1960), Trade unionist and politician. 23 Portraits
- Ada Ellen (née May), Lady Ammon (died 1958), Wife of 1st Baron Ammon. 3 Portraits
- Charles Amoah, Brother-in-law of Sir Samuel Quashie-Idun. 1 Portrait
- Derick Heathcoat Amory, 1st Viscount Amory (1899-1981), Industrialist, politician and Chancellor of the Exchequer. 13 Portraits
- Gordon Amory (1930-2010), Daily Express photographer. 1 Portrait
- Valerie Ann Amos, Baroness Amos of Brondesbury (1954-), Chief Executive of the Equal Opportunities Commission; Government Whip, House of Lords. 2 Portraits
- Sir Maurice Sheldon Amos (1872-1940), Judge in Egypt. 1 Portrait
- François Claude Amour, Marquis de Bouillé (1739-1800), French statesman. 1 Portrait
- André Marie Ampère (1775-1836), Physicist. 1 Portrait
- Edward Greenhill Amphlett (1853-1930), Justice of the Peace. 3 Portraits
- Sir Richard Paul Amphlett (1809-1883), Judge. 2 Portraits
- Odo William Leopold Russell, 1st Baron Ampthill (1829-1884), Diplomat. 3 Portraits
- Emily Theresa (née Villiers), Lady Ampthill (1843-1927), Royal courtier; wife of 1st Baron Ampthill; daughter of 4th Earl of Clarendon. 5 Portraits
- (Arthur) Oliver Villiers Russell, 2nd Baron Ampthill (1869-1935), Lieutenant-Colonel, administrator in India; governor of Madras and rower. 19 Portraits
- Margaret (née Lygon), Lady Ampthill (1874-1957), Lady of the Bedchamber to Queen Mary; wife of 2nd Baron Ampthill; daughter of 6th Earl Beauchamp. 9 Portraits
- Leopold Oliver Ampthill (1907-1988), Director-General of Cement and Concrete Association. 2 Portraits
- Joseph Amritanand (1917-1994), Bishop of Assam, India. 1 Portrait
- Albert Maurice Amsler (1877-1952), Physician. 1 Portrait
- Jan van Amstel (circa 1500-1542), Artist. 1 Portrait
- William Warrender MacKenzie, 1st Baron Amulree (1860-1942), Lawyer and industrial arbitrator. 6 Portraits
- Basil William Shotto Mackenzie, 2nd Baron Amulree (1900-1983), Physician and geriatrician. 8 Portraits
- Frederick Montague, 1st Baron Amwell of Islington (1876-1966), Labour politician; MP for Islington. 15 Portraits
- Mulk Raj Anand (1905-2004), Writer and critic. 2 Portraits
- Anastasia, Grand Duchess of Russia (1901-1918), Daughter of Nicholas II, Emperor of Russia. 8 Portraits
- Peregrine Bertie, 3rd Duke of Ancaster (1714-1793). 2 Portraits
- Mary (née Panton), Duchess of Ancaster (died 1793), Mistress of the Robes to Queen Charlotte; second wife of 3rd Duke of Ancaster. 12 Portraits
- Gilbert Henry Heathcote-Drummond-Willoughby, 1st Earl of Ancaster (1830-1910), Politician; MP for Boston and Rutland. 7 Portraits
- Evelyn Elizabeth (née Gordon), Countess of Ancaster (1846-1921), Wife of 1st Earl of Ancaster; daughter of 10th Marquess of Huntly. 3 Portraits
- Gilbert Heathcote-Drummond-Willoughby, 2nd Earl of Ancaster (1867-1951), Politician; MP for Horncastle. 12 Portraits
- Gilbert James Heathcote-Drummond-Willoughby, 3rd Earl of Ancaster (1907-1983), Lord-Lieutenant of County of Lincoln, 1950-75. 1 Portrait
- Nancy Phyllis Louise Heathcote-Drummond-Willoughby (née Astor), Countess of Ancaster (1909-1975), Wife of 3rd Earl of Ancaster; daughter of 2nd Viscount Astor. 2 Portraits
- Robert Bertie, 4th Duke of Ancaster and Kesteven (1756-1779), Politician; Lord Great Chamberlain. 2 Portraits
- Henry Ancell (1802-1863), Surgeon, traveller and writer. 2 Portraits
- Ronni Ancona (1968-), Actress. 1 Portrait
- Robert Ker, 1st Earl of Ancram (1578-1654), Courtier and politician. 1 Portrait
- Anne Ker (née Stanley), Countess of Ancram, Second wife of Robert Ker, Earl of Ancram; daughter of 6th Earl of Derby. 2 Portraits
- Aloys Ander (1821-1864), Singer with the Royal Italian Opera. 2 Portraits
- Wladyslaw Anders (1892-1970), Polish army general and politician. 3 Portraits
- Hans Christian Andersen (1805-1875), Writer. 2 Portraits
- Donald Anderson, Baron Anderson of Swansea (1939-), Barrister; politician. 6 Portraits
- Lady Flavia Joan Lucy Anderson (née Giffard) (1910-1998), Wife of James Alasdair Anderson; daughter of 2nd Earl of Halsbury. 4 Portraits
- Lady Gillian Mary Anderson (née Drummond) (1920-2002), Wife of John Murray Anderson; daughter of 16th Earl of Perth. 3 Portraits
- Dame Adelaide Mary Anderson (1863-1936), Civil servant. 3 Portraits
- Sir Alan Garrett Anderson (1877-1952), Shipowner and public servant. 4 Portraits
- Sir Alexander James Anderson (1879-1965), Vice-Chairman of Commissioners for the Port of Rangoon. 3 Portraits
- Alexander Robert Fordyce Anderson (1906-1963), Architect and President of the Architectural Association. 1 Portrait
- Alexander Vass Anderson (1895-1963), Major-General. 3 Portraits
- Alfred Anderson (1896-2005), Sergeant; later a city council clerk. 1 Portrait
- Angela Anderson (née Wellesley-Colley) (1942-), Wife of David Campbell Anderson; daughter of Anthony Wellesley-Colley. 3 Portraits
- Arthur Anderson (1873-1942), Librettist, lyricist and adapter. 1 Portrait
- Sir Athol Lancelot Anderson (1875-1955), Civil engineer. 1 Portrait
- Austin Thomas Anderson (1868-1949), Brigadier-General. 3 Portraits
- Carol Anderson, Fashion model. 1 Portrait
- Hon. Cecilia Claribel Anderson (née Cavendish) (1903-1997), Wife of James Mitchell Anderson; daughter of 6th Baron Waterpark. 9 Portraits
- Sir Charles Henry John Anderson, 9th Bt (1804-1891), Landowner and Sheriff of Lincolnshire. 2 Portraits
- Charles Palmerston Anderson (1865-1930), Bishop of Chicago; Presiding Bishop of United States of America Episcopal Church. 1 Portrait
- Clive Stuart Anderson (1952-), Comedian, radio and television writer and presenter. 2 Portraits
- Sir Colin Skelton Anderson (1904-1980), Director of Midland Bank and museum trustee. 1 Portrait
- Sir David Anderson (1880-1953), Lawyer and civil engineer. 2 Portraits
- David Anderson (1814-1885), Bishop of Rupert's Land, Canada. 2 Portraits
- David Anderson. 1 Portrait
- David Colville Anderson (1916-1995), Lecturer in Scots Law, Edinburgh University and politician. 2 Portraits
- David Dick Anderson (1889-1980), HM Chief Inspector of Schools. 2 Portraits
- Sir Desmond Francis Anderson (1885-1967), Lieutenant-General. 7 Portraits
- Donald Clive Anderson (1897-1957), Historian and Chief Press Officer for the Festival of Britain. 1 Portrait
- Sir Donald Forsyth Anderson (1906-1973), Director of National Westminster Bank Ltd. 3 Portraits
- Sir Duncan Law Anderson (1901-1980), Consulting civil engineer. 1 Portrait
- Sir Edmund Anderson (1530?-1605), Lord Chief Justice. 6 Portraits
- Edward William Anderson (1901-1981), Professor of Psychiatry. 2 Portraits
- Elizabeth D'Arcy Anderson (née Walker) (active 1937), Wife of Sir John D'Arcy Anderson. 1 Portrait
- Elizabeth Garrett Anderson (1836-1917), Physician. 7 Portraits
- Emily (née Foljambe), Lady Anderson (died 1870), Daughter of J.S. Foljame; wife of Sir Charles Anderson, 6th Bt . 1 Portrait
- Emma Anderson. 1 Portrait
- Emma Theodosia Anderson (1835-1912), Daughter of Sir Charles Henry John Anderson, 9th Bt. 3 Portraits
- (William) Eric Anderson (1936-), Chairman of the Heritage Lottery Fund. 1 Portrait
- Francis Anderson (active 1802), Writer to the Signet. 1 Portrait
- Francis Foljambe Anderson (1841-1881), Eldest son of Sir Charles Anderson, 6th Bt. 3 Portraits
- Sir Francis James Anderson (1888-1920), Brigadier-General. 3 Portraits
- Frederick Ingall Anderson (1874-1961), Chaplain. 1 Portrait
- Sir George Anderson (1845-1923), Treasurer, Bank of Scotland. 8 Portraits
- George Cranston Anderson (1879-1944), Secretary of British Medical Association. 1 Portrait
- George David Anderson (1913-1983), HM Diplomatic Service. 1 Portrait
- Gerry Anderson (1929-2012), Film producer, director, and writer; creator of 'Thunderbirds'. 1 Portrait
- Gwendoline Victoria Mary Anderson (née Jones) (1897-1957), First wife of William Louis Anderson. 1 Portrait
- Hedli Anderson (Antoinette Millicent Hedley MacNeice (née Anderson)) (1907-1990), Actress and singer; former wife of (Frederick) Louis MacNeice. 1 Portrait
- Helena Anderson. 1 Portrait
- Sir Henry Percy Anderson (1831-1896), Diplomat. 1 Portrait
- Ian Anderson (1947-), Musician; singer for Jethro Tull. 1 Portrait
- James Anderson (1738-1809), Botanist, agriculturalist and physician in India. 7 Portraits
- James Anderson (1739-1808), Economist. 1 Portrait
- James Anderson (1802-1888), Barrister. 1 Portrait
- Sir James Anderson (1824-1893), Telegraphic engineer. 3 Portraits
- Sir James Drummond Anderson (1886-1968), Indian civil servant. 2 Portraits
- James George Skelton Anderson (1838-1907), Managing Director, Orient Steamship Co.; husband of Elizabeth Garrett Anderson. 1 Portrait
- James Robertson Anderson (1811-1895), Actor and theatre manager. 1 Portrait
- James Stuart Murray Anderson (1800-1869), Clergyman. 4 Portraits
- Jane Anderson. 1 Portrait
- Janet Anderson (1949-), Politician; MP for Rossendale and Darwen. 1 Portrait
- Jim Anderson (1937-), Editor of Oz magazine. 1 Portrait
- James Michael ('Jimmy') Anderson (1982-), Cricketer. 1 Portrait
- John Anderson (circa 1750-1833), Falconer. 1 Portrait
- Sir John Anderson (1858-1918), Governor and Commander-in-Chief of Ceylon. 2 Portraits
- John Anderson (1921-2006), Footballer. 7 Portraits
- Sir John D'Arcy Anderson (1908-1988), General and Director-General of Military Training. 31 Portraits
- John Ford Anderson (1840-1933), Physician. 1 Portrait
- John George Anderson (1866-1943), Anglican Archbishop of Moosonee, Ontario. 1 Portrait
- John George Clark Anderson (1870-1952), Camden Professor of Ancient History, University of Oxford and Brasenose College Fellow. 3 Portraits
- Joseph Anderson (1801-1875), Merchant. 1 Portrait
- Dame Frances Margaret ('Judith') Anderson (1898-1992), Actress. 1 Portrait
- Julian Anderson (1967-), Composer. 1 Portrait
- Sir Kenneth Anderson (1906-1992), Civil servant. 2 Portraits
- Sir Kenneth Arthur Noel Anderson (1891-1959), General. 7 Portraits
- Sir Kenneth Skelton Anderson, 1st Bt (1866-1942), Manager and Director of Shipping Company. 5 Portraits
- Dame Kitty Anderson (1903-1979), Headmistress. 4 Portraits
- Lawrence Anderson (1893-1939). 5 Portraits
- Lea Anderson (1959-), Dancer and choreographer. 1 Portrait
- Lindsay Gordon Anderson (1923-1994), Film, television and stage director. 9 Portraits
- Louisa Garrett Anderson (1873-1943), Fellow of Royal Society of Medicine. 2 Portraits
- Lucy Anderson (née Philpot) (1790-1878), Music teacher to Queen Victoria. 4 Portraits
- Mala Anderson. 1 Portrait
- Margaret (née Milligan), Lady Anderson, Second wife of Sir James Anderson; daughter of Thomas Milligan. 1 Portrait
- Mary Anderson (Mrs de Navarro) (1859-1940), Actress. 53 Portraits
- Muriel Ivy (née Duncan), Lady Anderson (1884-1971), Wife of Sir Alan Garrett Anderson; daughter of G.W. Duncan. 1 Portrait
- Sir (David) Murray Anderson (1874-1936), Admiral. 2 Portraits
- Nelson Graham Anderson (1875-1945), Major-General. 2 Portraits
- Sir Neville Anderson (1881-1963), Lieutenant-Colonel. 3 Portraits
- Nicol Keith Anderson (1882-1953), Clergyman. 5 Portraits
- Noel Robert Anderson (1838-1868), Clerk in the Admiralty, Whitehall. 1 Portrait
- Mrs Rex Anderson, American society portrait painter. 1 Portrait
- Richard Henry Anderson (1821-1879), Soldier. 1 Portrait
- Sir Richard Neville Anderson (1907-1979), Lieutenant-General. 2 Portraits
- Robert Anderson (1792-1843), Clergyman. 2 Portraits
- Sir Robert Anderson (1841-1918), Spymaster, detective chief and author. 1 Portrait
- Robert Geoffrey William Anderson (1944-), Director of the British Museum. 1 Portrait
- Sir Robert Murray McCheyne Anderson (1867-1940), Brigadier-General and businessman. 1 Portrait
- Rona Anderson (1925-2013), Actress. 2 Portraits
- Ronald Kinloch Anderson (1911-1984), Pianist and Artistic Director at EMI Records. 1 Portrait
- Hon. Rosamond Anderson (née Tufton) (1877-1957), Wife of Stuart Gordon Anderson; daughter of Henry James Tufton, 1st Baron Hothfield. 2 Portraits
- Samuel Anderson (1982-), Actor. 1 Portrait
- (Alfred Charles) Stanley Anderson (1884-1966), Engraver, etcher and watercolour painter. 8 Portraits
- Stuart Milligan Anderson (1879-1954), Brigadier-General, journalist and Director of the Exchange Telegraph news agency. 4 Portraits
- Thomas Anderson (1819-1874), Chemist. 1 Portrait
- Vivian Alexander ('Viv') Anderson (1956-), Footballer and coach. 1 Portrait
- Walter Anderson, Tenor. 1 Portrait
- Sir Warren Hastings Anderson (1872-1930), Lieutenant-General. 10 Portraits
- William Anderson (1799-1873), Minister of the United Presbyterian church. 1 Portrait
- William Allan Campbell Anderson (1911-), Brigadier. 1 Portrait
- William Louis Anderson (1892-1972), Bishop of Portsmouth and of Salisbury. 9 Portraits
- Miss Anderson. 1 Portrait
- Miss Anderson. 1 Portrait
- Mr Anderson (active 1850), Member of The Lancashire Central Short Time Committee for Obtaining the Ten Hours Bill. 1 Portrait
- Professor Anderson (active 1855). 1 Portrait
- Miss Anderson (active 1861). 1 Portrait
- Captain Anderson (active 1930). 1 Portrait
- Lady Anderson (active 1942). 2 Portraits
- Hon. Evelyn Cornwallis Anderson-Pelham (1851-1908), Son of 2nd Earl of Yarborough. 4 Portraits
- Sven Olof Morgan Andersson (1910-1987), Swedish politician. 1 Portrait
- Lady Emma Frances Mary Anderton (née Plunkett) (1826-1866), First wife of William Michael Ince Anderton; daughter of 9th Earl of Fingall. 1 Portrait
- Darren Robert Anderton (1972-), Footballer. 1 Portrait
- Sir (Cyril) James Anderton (1932-), Chief Constable of the Greater Manchester Police Force. 3 Portraits
- William Michael Ince Anderton (1825-1884), Landowner and army officer. 1 Portrait
- Mary Howard (née Finch), Viscountess Andover (1717-1803), Wife of William, Viscount Andover. 3 Portraits
- Monsieur Andra (active 1860). 1 Portrait
- Didacus Andrada (died 1570), Jesuit Missionary. 1 Portrait
- Edward Neville da Costa Andrade (1887-1971), Physicist. 10 Portraits
- Count Gyula Andrassy (1823-1890), Hungarian statesman. 2 Portraits
- James Richard Glencoe Andre (1899-1981), Brigadier. 2 Portraits
- John André (1751-1780), Adjutant-General of British Forces in America and silhouettist. 1 Portrait
- André, Marquis de Verdières (born circa 1892). 3 Portraits
- Monsieur Andre. 1 Portrait
- Sir William Lewis André, Bt (1760-1802), Captain, Royal Fusiliers. 1 Portrait
- Dietrich Ernst Andreae (circa 1680-1734). 0 Portraits
- Edward Philip Andreae (died 1975), Businessman. 1 Portrait
- Princess Andrée Aga Khan (née Andrée Joséphine Carron) (circa 1898-1976), Third wife of Aga Khan III. 1 Portrait
- Constantine ('Costas') Andreou (1917-2007), Artist. 5 Portraits
- Bjørn Andresen (1955-), Actor. 1 Portrait
- Prince Andrew of Greece (1882-1944), Father of Prince Philip, Duke of Edinburgh. 8 Portraits
- Prince Andrew Alexandrovitch of Russia (1897-1981), Grandson of Tsar Nicholas I. 14 Portraits
- Prince Andrew, Duke of York (1960-), Second son of Queen Elizabeth II. 38 Portraits
- Hon. Gwyneth Margaret Andrew (née Bruce) (1928-), Wife of Robin McCheyne Andrew; daughter of 3rd Baron Aberdare. 5 Portraits
- Sir (George) Herbert Andrew (1910-1985), Civil servant. 2 Portraits
- James Andrew (1829?-1897), Physician. 1 Portrait
- John Harold Andrew (1887-1961), Professor of Metallurgy. 3 Portraits
- Maud Andrew, Actress. 1 Portrait
- Sir Christopher Howard Andrewes (1896-1988), Deputy Director, National Institute for Medical Research. 5 Portraits
- Sir Frederick William Andrewes (1859-1932), Pathologist. 3 Portraits
- Gerrard Thomas Andrewes (1795-1851), Clergyman; chaplain to the House of Commons. 2 Portraits
- Lancelot Andrewes (1555-1626), Bishop of Winchester. 28 Portraits
- Sir William Gerrard Andrewes (1899-1974), Admiral. 2 Portraits
- Albert Andrew Andrews (1896-1976), Captain. 1 Portrait
- Anthony Andrews (1948-), Actor. 1 Portrait
- A. Andrews, Messenger, House of Commons. 1 Portrait
- Charles Andrews (active circa 1823). 1 Portrait
- Charles Freer Andrews (1871-1940), Writer on India. 12 Portraits
- Charles William Andrews (1866-1924), Assistant Keeper in the Geological Department of the British Museum. 2 Portraits
- Eamonn Andrews (1922-1987), Television compere, broadcaster and writer. 3 Portraits
- Edward Andrews, Minister of Beresford Chapel, Walworth. 1 Portrait
- Enid Margaret Seymour Andrews (1922-), Tennis player. 1 Portrait
- Eusebius Andrews (died 1650), Royalist and barrister. 1 Portrait
- Frank Maxwell Andrews (1884-1943), Lieutenant-General. 3 Portraits
- Henry Stewart Fleetwood ('Harry') Andrews (1910-1989), Actor. 2 Portraits
- Iris Andrews (circa 1987-), Peace activist. 1 Portrait
- Jennifer Andrews (circa 1935-), Artist. 1 Portrait
- (Arthur) John Francis Andrews (1906-1984), Chairman of Clark Equipment Ltd. 1 Portrait
- John Miller Andrews (1871-1956), Prime Minister of Northern Ireland. 1 Portrait
- Julian Andrews (1934-2010), Arts Envoy for the British Council. 1 Portrait
- Julie Elizabeth Andrews (1935-), Actress. 7 Portraits
- Maidie Andrews (1893-1986), Actress. 1 Portrait
- Michael James Andrews (1928-1995), Painter. 24 Portraits
- Miles Peter Andrews (1742-1814), Dramatist, gunpowder manufacturer and politician. 1 Portrait
- Richard Andrews (1613-1618), Son of Richard Andrews (died 1634). 1 Portrait
- Walter Andrews (1852-1932), Anglican Bishop of Hokkaido, Japan. 1 Portrait
- Dorothy Andrus (Mrs Burke) (1908-1989), Tennis player. 2 Portraits
- Betty Lydia Jeanette Angel (née van Damm) (1915-1999), Sister of Sheila van Damm. 3 Portraits
- Dave Angel (1966-), Disc Jockey. 1 Portrait
- Heather Angel (1909-1986), Actress. 1 Portrait
- Jane Angel (1947-). 3 Portraits
- Susan Natalie Angel (1946-2015), Theatrical agent. 3 Portraits
- Pier Angeli (1932-1971), Actress. 1 Portrait
- Sir (Ralph) Norman Angell (né Ralph Norman Angell Lane) (1872-1967), Peace campaigner and author. 20 Portraits
- Henry Charles Angelo (1806-1866), Fencing master; son of Henry Angelo; grandson of Henry Charles William Angelo. 1 Portrait
- Henry Charles William Angelo (1756-1835), Fencing master. 2 Portraits
- Amelia M.A. Angerstein (1847?-1866), Daughter of William Angerstein. 1 Portrait
- Anne Angerstein (née Muilman) (died 1783), First wife of John Julius Angerstein. 1 Portrait
- John Angerstein (1773-1858), Politician; MP for Camelford and Greenwich; son of John Julius Angerstein. 2 Portraits
- John Julius Angerstein (circa 1732-1823), Merchant and picture collector. 7 Portraits
- Juliana Angerstein (1772-1846), Daughter of John Julius Angerstein. 3 Portraits
- Mary Ann Angerstein (née Nettleship) (1824-1887), Wife of William Angerstein. 1 Portrait
- William Angerstein (1811-1897), Politician; MP for Greenwich. 3 Portraits
- Lilian Maud (née Routledge), Lady Angier (died 1956), Wife of Sir Theodore Vivian Samuel Angier; daughter of Edmund Routledge. 2 Portraits
- Bernard John Angle (1853-1932), Athlete and stockbroker. 1 Portrait
- Henry William Paget, 1st Marquess of Anglesey (1768-1854), Field Marshal and Lord-Lieutenant of Ireland. 28 Portraits
- Henry Paget, 2nd Marquess of Anglesey (1797-1869), Politician; Lord Chamberlain of the Household. 5 Portraits
- Henry William George Paget, 3rd Marquess of Anglesey (1821-1880), Politician and Grenadier Guard. 3 Portraits
- Henry Paget, 4th Marquess of Anglesey (1835-1898), Sportsman. 5 Portraits
- Henry Cyril Paget, 5th Marquess of Anglesey (1875-1905), 'The Dancing Marquess'. 1 Portrait
- Lilian Florence Maud Paget (née Chetwynd), Marchioness of Anglesey (later Gilliat) (1876-1962), Wife of 5th Marquess of Anglesey, daughter of Sir George Chetwynd. 12 Portraits
- Charles Henry Alexander Paget, 6th Marquess of Anglesey (1885-1947), Lord Chamberlain to Queen Mary. 3 Portraits
- Victoria Marjorie Harriet Paget (née Manners), Marchioness of Anglesey (1883-1946), Writer and artist; wife of 6th Marquess of Anglesey; daughter of 8th Duke of Rutland. 4 Portraits
- George Charles Henry Victor Paget, 7th Marquess of Anglesey (1922-2013), Lord Lieutenant of Gwynedd. 3 Portraits
- Christopher Villiers, 1st Earl of Anglesey (circa 1593-1630), Courtier and 3rd son of Sir George Villiers. 1 Portrait
- Arthur Annesley, 1st Earl of Anglesey (1614-1686), Book collector and politician; MP for Dublin City, Radnorshire and Carmarthen. 5 Portraits
- Francis Alexander Anglin (1865-1933), Judge. 3 Portraits
- Marie Thérèse Charlotte, duchesse d'Angoulême (1778-1851), Daughter of Louis XVI. 5 Portraits
- Miss Anguish (active 1803). 1 Portrait
- Archibald Douglas, 6th Earl of Angus (1489?-1557), Second husband of Margaret Tudor, Queen of James IV of Scotland. 2 Portraits
- Edmund Graham Angus (1889-1983), Company president. 6 Portraits
- Joseph Angus (1816-1902), Baptist minister and educationist. 3 Portraits
- Margaret MacGregor ('Peggy') Angus (1904-1993), Painter. 1 Portrait
- Sir (Arthur) Stanley Angwin (1883-1959), Engineer. 7 Portraits
- Father Anieur (Anineur), Priest of the Church of Rome. 3 Portraits
- David Ross, Lord Ankerville (1727-1805), Judge. 1 Portrait
- Anna Pavlovna of Russia (1795-1865), Queen consort of William II of Holland. 1 Portrait
- Princess Anna of Battenberg (1874-1971), Daughter of Danilo I, King of Montenegro; wife of Prince Francis Joseph of Battenberg. 1 Portrait
- Annabella (Suzanne Charpentier) (1907 or 1909-1996), Film actress. 2 Portraits
- Kenneth Cooper ('Ken') Annakin (1914-2009), Film director. 1 Portrait
- Ellen (née Dempster), Baroness Annaly of Annaly and Rathcline (died 1868), Wife of 1st Baron Annaly; daughter of William Soper Dempster. 1 Portrait
- Luke White, 3rd Baron Annaly (1857-1922), Lord in Waiting to the King. 2 Portraits
- Luke Henry White, 4th Baron Annaly (1885-1970), Major. 3 Portraits
- Lavinia Emily White (née Spencer), Lady Annaly (1899-1955), Extra Lady-in-Waiting to Queen Elizabeth, the Queen Mother (when Duchess of York); wife of 4th Baron Annaly; daughter of 6th Earl Spencer. 13 Portraits
- Luke Robert White, 5th Baron Annaly (1927-1990), Stockbroker. 9 Portraits
- Noel Gilroy Annan, Baron Annan (1916-2000), Administrator and writer. 9 Portraits
- James Craig Annan (1864-1946), Photographer. 0 Portraits
- Richard Wallace Annand (1914-2004), Captain; recipient of the first Army Victoria Cross of World War II; founder Member of British Assoc. of Hard of Hearing. 7 Portraits
- Thomas Annandale (1838-1907), Professor of Surgery; writer. 1 Portrait
- Queen Anne (1665-1714), Reigned 1702-14. 74 Portraits
- Anne of Bohemia (1366-1394), Queen of Richard II. 6 Portraits
- Anne Neville, Queen of England (1456-1485), Consort of King Richard III. 5 Portraits
- Anne, Queen of Hungary (1503-1547), Wife of Ferdinand I, Holy Roman Emperor. 4 Portraits
- Anne Boleyn (circa 1500-1536), Second Queen of Henry VIII. 26 Portraits
- Anne of Cleves (1515-1557), Fourth Queen of Henry VIII. 13 Portraits
- Anne of Denmark (1574-1619), Queen of James I. 49 Portraits
- Princess Anne (1637-1640), Third daughter of Charles I. 7 Portraits
- Anne Hyde, Duchess of York (1637-1671), First wife of James II; mother of Mary II and Queen Anne. 16 Portraits
- Anne, Princess Royal and Princess of Orange (1709-1759), Daughter of King George II; wife of William Charles Henry Friso, Prince of Orange. 24 Portraits
- Princess Anne of Löwenstein-Wertheim-Freudenberg (née Lady Anne Savile) (1864-1927), Socialite, aviation patron and aviator; wife of Prince Ludwig Karl of Löwenstein-Wertheim-Freudenberg; daughter of 4th Earl of Mexborough. 8 Portraits
- Princess Anne (1950-), Equestrian; Olympian; Princess Royal and daughter of Queen Elizabeth II. 121 Portraits
- Anne Law, Lady Ellenborough (1761-1843), Wife of 1st Baron Ellenborough. 1 Portrait
- Princess Anne Blanche Alice Singh (née Coventry) (1874-1956), Wife of Prince Victor Albert Duleep Singh; daughter of 9th Earl of Coventry. 1 Portrait
- Princess Anne Marie Galitzine (née Slatin, later Ponsonby) (1916-2007), Former wife of Prince George Galitzine, and later second wife of Arthur Ponsonby (later 11th Earl of Bessborough); daughter of Baron von Slatin. 8 Portraits
- Anne-Marie of the Hellenes (née Princess Anne-Marie of Denmark) (1946-), Wife of Constantine II of the Hellenes; daughter of King Frederick IX of Denmark. 2 Portraits
- Richard Annesley, 2nd Earl Annesley (1745-1824), Commissioner of the revenue of Ireland. 1 Portrait
- Hugh Annesley, 5th Earl Annesley (1831-1908). 3 Portraits
- Priscilla Cecilia (née Moore), Countess Annesley (1870-1941), Second wife of 5th Earl of Annesley; daughter of William Armitage Moore. 48 Portraits
- Francis Annesley, 6th Earl Annesley (1884-1914), Sub-Lieutenant. 2 Portraits
- Maud Fleming Annesley (née Higginson), Countess Annesley (died 1923), First wife of 7th Earl Annesley; daughter of Haynes Bingham Higginson. 1 Portrait
- Beresford Cecil Bingham Annesley, 8th Earl Annesley (1894-1957), Lieutenant. 4 Portraits
- Edith Constance Annesley (née Rawlinson), Countess Annesley (died 1950), Former wife of 6th Earl of Clancarty, and later wife of 8th Earl of Annesley; daughter of Albemarle Alexander Rawlinson. 7 Portraits
- William Richard Annesley, 4th Earl Annesley (1830-1874), Politician; MP for Great Grimsby. 1 Portrait
- Robert Annesley, 9th Earl Annesley (1900-1979), Civil servant. 7 Portraits
- Lady Clare Annesley (1893-1980), Pacifist; daughter of 5th Earl Annesley. 10 Portraits
- Sir Francis Annesley (1734-1812), Politician; MP for Reading. 1 Portrait
- Hon. Hilda Cecil Annesley (1889-1972), Daughter of 11th Viscount Valentia. 2 Portraits
- James Annesley (1715-1760), Peerage claimant. 1 Portrait
- Marian Emily Annesley (née Dicker) (1849-1877), Second wife of Francis Charles Annesley; daughter of John Campbell Dicker. 1 Portrait
- Rosemary Millicent Annett (née de Wend-Fenton) (1919-1997), Wife of Niall Annett. 1 Portrait
- Anna Annigoni (née Maggini) (died 1969), First wife of Pietro Annigoni. 1 Portrait
- Benedetto Annigoni (1939-), Son of Pietro Annigoni. 1 Portrait
- Maria Ricciarda Annigoni (1948-), Daughter of Pietro Annigoni. 1 Portrait
- Pietro Annigoni (1910-1988), Painter. 32 Portraits
- Francesca Annis (1944-), Actress. 2 Portraits
- Archduchess Annunciata of Austria (1843-1871), Abbess of the Theresia Convent. 1 Portrait
- Nonso Anozie (1978-), Actor. 1 Portrait
- Alda von Anrep (died 1974), Assistant librarian at Villa i Tatti. 1 Portrait
- Boris von Anrep (1883-1969), Mosaicist. 4 Portraits
- Helen von Anrep (née Maitland) (1885-1965), Wife of Boris von Anrep. 2 Portraits
- Junia von Anrep (née Yuniya Khitrovo), First wife of Boris von Anrep. 3 Portraits
- Gertrude Elizabeth Margaret Anscombe (1919-2001), Philosopher. 1 Portrait
- Richard Ansdell (1815-1885), Animal painter. 12 Portraits
- Gertrude Mary Ansell (1861-1932), Suffragette and member of the Fabian Women's Group. 2 Portraits
- Mary Ansell (1862-1950), Actress; wife of Sir James Matthew ('J.M.') Barrie, Bt. 2 Portraits
- Sir Michael Picton Ansell (1905-1994), Lieutenant-Colonel. 2 Portraits
- Sir Richard Ansell. 1 Portrait
- St Anselm (circa 1033-1109), Abbot of Bec and Archbishop of Canterbury. 3 Portraits
- Ernest Ansermet (1883-1969), Conductor. 1 Portrait
- Anne Ferelith Anson (née Bowes-Lyon), Viscountess Anson (1917-1980), Former wife of Viscount Anson, and later wife of Prince George of Denmark. 2 Portraits
- George Anson, 1st Baron Anson (1697-1762), Admiral. 10 Portraits
- Lady Clodagh Anson (née Beresford) (1879-1957), Wife of Hon. Claud Anson; daughter of 5th Marquess of Waterford. 7 Portraits
- Hon. Adela Anson (née Vernon), Daughter of Baron Vernon; wife of Algeron Horation Anson. 1 Portrait
- Adelbert John Robert Anson (1840-1909), Bishop of Qu'Appelle, Canada and Master of St John's Hospital, Lichfield. 1 Portrait
- Major Hon. A.H. Anson. 1 Portrait
- Charles Eustace Anson (1859-1940), Naval officer. 2 Portraits
- Clodaugh Anson (1902-1992), Granddaughter of Thomas George, 2nd Earl of Lichfield. 4 Portraits
- Sir George Anson (1769-1849), General and politician; MP for Lichfield. 1 Portrait
- George Anson (1797-1857), General. 3 Portraits
- Harold Anson (1867-1954), Master of the Temple and Canon of Southwark. 11 Portraits
- Hon. Isabella Elizabeth Annabella Anson (née Forester) (1805-1858), Wife of Hon. George Anson. 2 Portraits
- Marion Emma Ruthven ('Mollie') Anson (née Halliday) (1891-1965), Wife of Hon. Rupert Anson; daughter of James Halliday. 1 Portrait
- Peter Frederick Anson (1879-1975), Writer on religion and on the sea. 9 Portraits
- R.N. Anson, Captain. 1 Portrait
- Sir (George) Wilfred Anson (1893-1974), Director of Imperial Tobacco Co Ltd. 2 Portraits
- Sir William Anson, 1st Bt (1772-1847), Major-General. 3 Portraits
- Sir William Reynell Anson, 3rd Bt (1843-1914), Politician and warden of All Souls College, Oxford. 6 Portraits
- Captain Anson (active 1900s), Naval captain. 1 Portrait
- Sir Eric Cecil Ansorge (1887-1977), Fellow, Ancient Monuments Society; Indian Civil Service. 2 Portraits
- David Thomas Ansted (1814-1880), Geologist. 6 Portraits
- Dame Margaret Joan Anstee (1926-2016), Diplomat and writer; Under-Secretary-General of the United Nations. 1 Portrait
- Lady Evelyn Frances Anstey (née Courtenay) (1908-1985), Wife of Thomas Anstey; daughter of 16th Earl of Devon. 4 Portraits
- Arthur Henry Anstey (1872-1955), Archbishop of the West Indies and Bishop of Trinidad and Tobago. 1 Portrait
- Christopher Anstey (1724-1805), Poet. 4 Portraits
- Mary Ann Anstey (1763-1829), Eldest daughter of Christopher Anstey. 1 Portrait
- Vera Anstey (1889-1976), Economist. 1 Portrait
- Professor Anstey. 1 Portrait
- Lieutenant Anstey (active 1865), Lieutenant, Royal Engineer. 1 Portrait
- Sir Edmund Anstice (1899-1979), Vice-Admiral. 1 Portrait
- Francis Edmund Anstie (1833-1874), Physician. 1 Portrait
- John Anstis (1669-1744), Garter king-of-arms and heraldic writer. 1 Portrait
- Charles Frederick St. Clair Anstruther (né Anstruther Thomson) (1855-1925), Lieutenant-Colonel of the 2nd Life Guards. 1 Portrait
- Dame Eva Isabella Henrietta Anstruther (1869-1935), Honorary Director of the Camps Library. 2 Portraits
- Henry Torrens Anstruther (1860-1926), Politician; MP for St Andrews. 11 Portraits
- Sir John Anstruther (1753-1811), Politician and Anglo-Indian judge. 3 Portraits
- Sir Ralph Abercromby Anstruther, 4th Bt (1804-1863), Army officer. 3 Portraits
- Robert Anstruther (1768-1809), General. 4 Portraits
- Sir Wyndham Carmichael Anstruther, 7th Bt (1793-1869). 2 Portraits
- Sir Richard Hamilton Anstruther-Gough-Calthorpe (1908-1985), Brigadier. 5 Portraits
- William Anstruther-Gray (1859-1938), Politician; Army officer. 1 Portrait
- Sir Ralph Hugo Anstruther of that Ilk, 12th Bt (1921-2002), Major and equerry to the Queen Mother. 2 Portraits
- Adam Ant (Stuart Leslie Goddard) (1954-), Musician and singer. 2 Portraits
- François Paul Anthoine (1860-1944), French General. 1 Portrait
- Eve Anthony, Fashion model. 1 Portrait
- Evelyn Anthony (Evelyn Bridget Patricia Ward-Thomas (née Stephens)) (1928-2018), Writer. 2 Portraits
- Gordon Anthony (1902-1989), Photographer. 1 Portrait
- Herbert Douglas Anthony (1892-1968), Extra-Mural lecturer. 1 Portrait
- Hilda Anthony (Hilda Antonietti) (1886-1962), Actress. 1 Portrait
- Hubert Lawrence ('Larry') Anthony (1897-1957), Australian politician. 1 Portrait
- Ivor Jones Anthony (1883-1959), Racehorse trainer and jockey. 1 Portrait
- John Randolph ('Jack') Anthony (1890-1954), Horse trainer. 5 Portraits
- John Anthony (1585-1655), Physician. 2 Portraits
- Marc Anthony, Nightclub pianist and entertainer. 1 Portrait
- William Samuel Anthony (1874-1943), Major-General. 1 Portrait
- Antoine de Bourbon, King of Navarre (1518-1562), King of Navarre; father of Henry IV, King of France. 1 Portrait
- Prince Antoine Bibesco (1878-1951), Romanian Minister to Madrid, lawyer and writer; husband of Elizabeth Asquith. 1 Portrait
- Antoine (Antoni Cierplikowski) (1884-1976), Hairdresser. 3 Portraits
- Giacomo Antonelli (1806-1876), Cardinal. 3 Portraits
- Infanta Antonia of Portugal, Princess of Hohenzollern (1845-1913), Wife of Leopold, Prince of Hohenzollern; daughter of Fernando II, King of Portugal. 1 Portrait
- Princess Antonia of Luxembourg (1899-1954), Wife of Rupprecht, Crown Prince of Bavaria; daughter of William IV, Grand Duke of Luxembourg. 1 Portrait
- Yvonne G. Antoniade, Secretary of the Royal Rumanian Legation in Madrid; wife of Georges Antoniade. 1 Portrait
- Antonio (died circa 1782), Venetian sailor, robbed at Kinsale. 1 Portrait
- Aleksei Innokentievich Antonov (1896-1962), General, Soviet Army. 1 Portrait
- Laura Cecilia (née Parker), Countess of Antrim (1809-1883), Wife of 4th Earl of Antrim; daughter of 5th Earl of Macclesfield. 2 Portraits
- Louisa Jane (née Grey), Countess of Antrim (1855-1949), Lady-in-waiting to Queen Victoria and Queen Alexandra; wife of 6th Earl of Antrim; daughter of Hon. Charles Grey. 3 Portraits
- Randal Mark Kerr McDonnell, 12th Earl of Antrim (1878-1932), Landowner. 1 Portrait
- Randal John Somerled McDonnell, 13th Earl of Antrim (1911-1977), Chairman of National Trust. 1 Portrait
- Philip Coutts, 7th Baron Antrobus (1908-1995). 1 Portrait
- Anne (née Lindsay), Lady Antrobus (1800-1885), Wife of Sir Edmund Antrobus, 2nd Bt; daughter of Hon. Hugh Lindsay. 1 Portrait
- Sir Edmund Antrobus, 1st Bt (died 1826), Fellow of the Royal Society. 1 Portrait
- Edmund Edward Antrobus (1807?-1886), Magistrate, tea merchant and writer. 1 Portrait
- George Antrobus (circa 1818-1872), Clergyman. 1 Portrait
- Gibbs Crawfurd Antrobus (1793-1861), Diplomat and Conservative politician: MP for Aldborough and Plympton Erle. 1 Portrait
- Henrietta Antrobus (circa 1826-1904), Wife of George Antrobus. 1 Portrait
- Hugh Lindsay Antrobus (1823-1899), Banker; son of Sir Edmund Antrobus, 2nd Bt. 2 Portraits
- John Antrobus (1933-), Playwright. 1 Portrait
- Mary Antrobus (née Adam) (died 1900), Wife of Hugh Lindsay Antrobus; daughter of Sir Charles Adam. 2 Portraits
- Mary Caroline Antrobus (née Shakerley) (circa 1836-1872), Wife of John Coutts Antrobus; daughter of Geoffrey Joseph Shakerley. 1 Portrait
- Mary Egidia Antrobus (née Lindsay) (1851-1911), Wife of John Coutts Antrobus; youngest daughter of Sir James Lindsay and Lady Sarah Elizabeth Lindsay (née Savile). 2 Portraits
- Philip Reginald Antrobus (1898-1968), Captain; son of Sir Reginald Antrobus. 5 Portraits
- Sir Reginald Laurence Antrobus (1853-1942), Colonial administrator. 5 Portraits
- Sir Apcar Alexander Apcar (1851-1913). 1 Portrait
- Master Apcar. 1 Portrait
- Maude Aplin, Former wife of James Bruce Mackay, and later wife of Hugh Douglas Aplin. 1 Portrait
- Alexander Dherma Rama Apotantreygay (born circa 1792), Buddhist priest. 1 Portrait
- Karel Christian Appel (1921-2006), Artist. 3 Portraits
- Machteld Appel (née van der Groen) (died 1970), Fashion model for Balenciaga; wife of Karel Appel. 1 Portrait
- Charles James Apperley (1778-1843), Sports writer; 'Nimrod'. 2 Portraits
- Herbert Apperly (died 1932), Consulting dental surgeon to Elizabeth Garnett Anderson Hospital. 2 Portraits
- Constance Mary Katherine Applebee (1873-1981), Sportswoman and founder of the American Field Hockey Association. 2 Portraits
- Charles Bernard Appleby (1905-1975), First director of the National Army Museum; Lieutenant-Colonel. 5 Portraits
- Robert Appleby (1913-1996), Chairman, Black & Decker Ltd. 1 Portrait
- Sir Edward Victor Appleton (1892-1965), Physicist and Nobel Prize winner. 10 Portraits
- Ernest Robert Appleton (1891-1964), Broadcaster and religious author. 1 Portrait
- George Appleton (1902-1993), Lord Archbishop of Perth, Australia. 12 Portraits
- Natalie Appleton (1973-), Singer; member of All Saints. 1 Portrait
- Nicole Appleton (1974-), Singer; member of All Saints. 1 Portrait
- Peter Appleton. 1 Portrait
- Charles H. Applewhaite, Tennis player and coach. 1 Portrait
- Beatrice Mary Appleyard (1863-1864), Daughter of Richard Hall Appleyard. 1 Portrait
- Frances Margaret Appleyard (1815-1874), Daughter of Robert Langley Appleyard. 1 Portrait
- Kenelm Charles Appleyard (1894-1967), Major-General in Royal Engineers. 3 Portraits
- Louisa Suzanna Appleyard (1818-1907), Daughter of Robert Langley Appleyard. 1 Portrait
- Rollo Appleyard (1867-1943), Consulting engineer. 1 Portrait
- Arthur Applin (1873-1949), Actor, playwright and novelist. 5 Portraits
- Albert, Count Apponyi (1846-1933), Hungarian politician. 2 Portraits
- Rudolf, Count Apponyi (1812-1876), Austrian ambassador to London. 2 Portraits
- Countess Apponyi, Wife of Rudolf, Count Apponyi. 1 Portrait
- Felix Aprahamian (1914-2005), Music critic. 3 Portraits
- Sir Henry Edward Ap Rhys Pryce (1874-1950), General. 3 Portraits
- Rodulphus Aquiviva (died 1583), Jesuit Missionary. 1 Portrait
- Michael Arabian, Playwright. 4 Portraits
- Elizabeth Mary Arabin (née Meux) (died 1880), Wife of Richard Arabin; daughter of Sir Henry Meux, 1st Bt. 1 Portrait
- Richard Arabin (1811-1865), Landowner. 1 Portrait
- William John Arabin (1750-1828), General; amateur actor. 1 Portrait
- Diego (Alberto) Aracena (Aguilar) (1891-1972), Chilean diplomat and Air Force general. 1 Portrait
- Maria de Aracena (born 1900), Wife of Diego Aracena, Chilean diplomat. 3 Portraits
- Ron Arad (1951-), Architect, furniture and product designer. 2 Portraits
- Riccardo Aragno (1915-2003), Writer. 2 Portraits
- Maiorica Aragonensis (died 1570), Jesuit Missionary. 1 Portrait
- Michael Aragonus (died 1571), Jesuit Missionary. 1 Portrait
- E. Arakie. 2 Portraits
- Eugene Aram (1704-1759), Criminal. 1 Portrait
- Antonio Aramburo (1840-1912), Spanish tenor. 1 Portrait
- Don Francisco Linares Aranda, Guatemalan ambassador to London. 3 Portraits
- Franciscus Aranea (died 1583), Jesuit Missionary. 1 Portrait
- Bunny Arango. 1 Portrait
- Tevfic Rustu Aras (1883-1972), Turkish ambassador to London. 10 Portraits
- Stella Arbenina (1887-1976), Russian actress. 1 Portrait
- Agnes Arber (née Robertson) (1879-1960), Botanist; wife of Edward Alexander Newell Arber; daughter of Henry Robert Robertson. 2 Portraits
- Edward Alexander Newell Arber (1870-1918), Palaeobotanist. 1 Portrait
- Arthur John Arberry (1905-1969), Orientalist. 3 Portraits
- Sir William Forbes Arbuckle (1902-1966), Secretary of Scottish Education Department. 1 Portrait
- Charles Arbuthnot (1767-1850), Diplomat. 2 Portraits
- Sir Charles George Arbuthnot (1824-1899), Lieutenant-General. 1 Portrait
- Sir Geoffrey Schomberg Arbuthnot (1885-1957), Admiral. 7 Portraits
- Gerald Archibald Arbuthnot (1872-1916), Politician and Lieutenant. 1 Portrait
- Harriet Arbuthnot (née Fane) (1793-1834), Diarist and friend of Wellington. 3 Portraits
- Hugh Arbuthnot (1780-1868), Politician; MP for Kincardineshire. 1 Portrait
- John Alves Arbuthnot (1802-1875), Businessman; son of Sir William Arbuthnot, 1st Bt. 2 Portraits
- Sir John Sinclair-Wemyss Arbuthnot, 1st Bt (1912-1992), Politician and businessman. 3 Portraits
- Marcia Mary Anne Arbuthnot (née Lisle) (1774-1806), First wife of Charles Arbuthnot. 1 Portrait
- Margaret Jean (née Duff), Lady Arbuthnot (1919-), Wife of Sir John Sinclair-Wemyss Arbuthnot, 1st Bt. 2 Portraits
- Mary Arbuthnot (1840-1930), Daughter of John Alves Arbuthnot. 1 Portrait
- Sir Robert Keith Arbuthnot, 4th Bt (1864-1916), Rear-Admiral. 1 Portrait
- Master Arbuthnot (active early 19th century), Son of Charles Arbuthnot. 1 Portrait
- John Ogilvy Arbuthnott, 14th Viscount Arbuthnott (1882-1960), Lord Lieutenant of Kincardineshire. 1 Portrait
- St Joan of Arc (Jeanne d'Arc) (circa 1412-1431), French patriot and martyr. 1 Portrait
- St John Desmond Arcedeckne-Butler (1896-1959), Major-General. 3 Portraits
- Joseph Arch (1826-1919), Trade unionist and politician. 3 Portraits
- Father Archangel (1564-1631), Capucin preacher. 1 Portrait
- Jenny Archbold, Paintings Conservator, National Portrait Gallery. 1 Portrait
- Gladys Violet Archbutt (1889-1968), Actress. 5 Portraits
- Sir Edward Mervyn Archdale (1853-1943), Politician; Minister of Agriculture and Commerce. 4 Portraits
- Eyre William Preston Archdale (1871-1955), Canon of Killaloe. 3 Portraits
- Helen Alexander Archdale (née Russell) (1876-1949), Journalist; Suffragette. 1 Portrait
- Henry Kingsley Archdall (1886-1976), Canon Emeritus and Chancellor, St David's Cathedral. 1 Portrait
- Mervyn Archdall (1833-1913), Bishop of Killaloe, County Clare. 1 Portrait
- Jeffrey Howard Archer, Baron Archer of Weston-Super-Mare (1940-), Politician, author and playwright. 2 Portraits
- Mary Doreen Archer (née Weeden), Baroness Archer (1944-), Scientist. 1 Portrait
- Sarah Archer (née West), Lady Archer (1741-1801), Wife of Andrew, 2nd Lord Archer. 8 Portraits
- Catherine Archer (née O'Malley), Wife of Gilbert Thomas Archer. 2 Portraits
- Charles Edward Archer (1858-1922), Jockey; son of William Archer, jockey. 1 Portrait
- Frederick Archer (1857-1886), Jockey. 12 Portraits
- Sir Geoffrey Francis Archer (1882-1964), Governor-General of the Sudan. 13 Portraits
- Gilbert Thomas Archer (1903-1986), Major-General and pathologist. 2 Portraits
- Master G. Archer. 1 Portrait
- G.S. Archer. 1 Portrait
- James Archer (1751-1834), Chaplain to the Bavarian Minister. 2 Portraits
- Jennifer ('Jenny') Archer (1944-), Paralympic athletics coach. 1 Portrait
- John Archer (active 1660-died 1684), Physician to Charles II. 1 Portrait
- Sir John Archer (1860-1949), Vice-President of Boy Scouts Association. 3 Portraits
- John Wykenham Archer (1806-1864), Watercolour painter and printmaker. 1 Portrait
- Hon. Ruth Evelyn Archer (née Pease) (1900-1982), Wife of Norman Ernest Archer; daughter of 1st Baron Daryngton. 1 Portrait
- Simon Archer (badminton) (1973-), Badminton player; Olympian. 1 Portrait
- William Archer (1856-1924), Critic and journalist. 10 Portraits
- Miss Archer. 1 Portrait
- Lady Alice Frances Archer-Houblon (née Lindsay) (1849-1915), Wife of George Bramston Archer-Houblon; daughter of 25th Earl of Crawford. 2 Portraits
- Frances (née Pell), Lady Archer-Shee, Wife of Sir Martin Archer-Shee; daughter of Alfred Pell. 4 Portraits
- Sir Alistair Maurice Archibald, 3rd Bt (1922-1995). 3 Portraits
- Hon. Augustus Henry Archibald (1835-1877), Second son of 1st Earl of Lichfield; Major and Liberal politician. 1 Portrait
- Juan Arcocha (1927-2010), Cuban writer. 5 Portraits
- Marie, Viscountess D'Arcy, Wife of Pierre Marie Patrice, Viscount D'Arcy; daughter of Samuel, Marquess de la Valette. 1 Portrait
- Sir John Charles Ardagh (1840-1907), Major-General and engineer. 3 Portraits
- Charles George Perceval, 2nd Baron Arden (1756-1840), Lord of the Admiralty, Lord Lieutenant of Surrey and Conservative politician; MP for Launceston and Totnes. 5 Portraits
- Margaretta Elizabeth Perceval (née Wilson), Lady Arden (1768-1851), Wife of 2nd Baron Arden. 1 Portrait
- John Arden (1930-2012), Playwright. 1 Portrait
- Mary Arden (née Finney) (died 1880), Second wife of Richard Edward Arden; daughter of John Finney. 2 Portraits
- Richard Edward Arden (1804-1894), Landowner, magistrate and barrister. 1 Portrait
- Sir Charles Noble Arden-Clarke (1898-1962), Lieutenant-Colonel and governor. 8 Portraits
- Sir Charles Frederick Arden-Close (1865-1952), Geographer. 10 Portraits
- Shirley Ardener, Social anthropologist. 1 Portrait
- Sir Peter Arderne (died 1467), Judge and Chief Baron of the Exchequer. 1 Portrait
- Richard Arderne. 1 Portrait
- Thomas John Arderne. 1 Portrait
- Lady Arderne. 1 Portrait
- Arthur Edward Guinness, Baron Ardilaun (1840-1915), Politician and philanthropist. 1 Portrait
- Luigi Arditi (1822-1903), Italian violinist, composer and conductor. 2 Portraits
- Edward Jeffrey Irving Ardizzone (1900-1979), Artist and illustrator. 6 Portraits
- Neil Richard Ardley (1937-2004), Composer, musician and writer. 1 Portrait
- Charles de Ligne, Count of Aremberg (1550-1616), Delegate at the Somerset House Conference. 1 Portrait
- Albert, Count of Arenberg (1600-1670), Spanish military officer. 3 Portraits
- Pietro Aretino (1492-1556). 1 Portrait
- Godfrey Argent (1937-2006), Photographer. 2 Portraits
- Rodney Terence ('Rod') Argent (1945-), Musician; founding member of The Zombies and Argent. 1 Portrait
- Alexandra Helen Argenti (née Schilizzi) (1904-1988), Wife of Philip Pandely Argenti; daughter of Stephen Schilizzi. 3 Portraits
- Ambrose Argenti (1804-1871), Merchant. 1 Portrait
- Fanny Sybil Argenti (1930-), Daughter of Philip Pandely Argenti. 1 Portrait
- Oriettou ('Henrietta') Argenti (née Scaramanga) (1820-1903), Wife of Ambrose Argenti. 1 Portrait
- Philip Pandely Argenti (1891-d 1974), Greek diplomat and writer; son of Pandely Leonidas Argenti. 2 Portraits
- Frank Atkinson Argles (1816-1885), Landowner. 1 Portrait
- Gerard Marsham Argles (1901-1979), Stockbroker; son of Cecil George Argles. 1 Portrait
- Susanna (Susannah) Argles (née Atkinson) (circa 1825-1895), Wife of Frank Atkinson Argles; daughter of Tobias Atkinson. 1 Portrait
- Pearl Argyle (1910-1947), Dancer. 3 Portraits
- Sir Stanley Seymour Argyle (1867-1940), Australian politician. 3 Portraits
- Violet Ellen Jessie (née Lewis), Lady Argyle (1870-1963), Wife of Sir Stanley Seymour Argyle. 3 Portraits
- Archibald Campbell, 1st Duke of Argyll (1658-1703), Scottish politician and Captain and Colonel of the Scots Troop of Horse Guards. 2 Portraits
- Elizabeth Campbell (née Tollemache), Duchess of Argyll (1659-1735), Wife of 1st Duke of Argyll. 3 Portraits
- John Campbell, 2nd Duke of Argyll and Greenwich (1680-1743), Field Marshal and statesman. 12 Portraits
- Archibald Campbell, 3rd Duke of Argyll (1682-1761), Statesman. 5 Portraits
- John Campbell, 4th Duke of Argyll (1694-1770), Colonel, peer and politician; MP for Bute, Elgin and Dumbarton. 2 Portraits
- John Campbell, 5th Duke of Argyll (1723-1806), Field Marshal. 3 Portraits
- George William Campbell, 6th Duke of Argyll (1768-1839), Lord Steward of the Household and politician; MP for St Germans. 6 Portraits
- John Campbell, 7th Duke of Argyll (1777-1847), Keeper of the Great Seal of Scotland, Lieutenant-Colonel and politician; MP for Argyllshire. 3 Portraits
- Anne Campbell (née Colquhoun), Duchess of Argyll (1801-1874), Third wife of 7th Duke of Argyll. 1 Portrait
- George Douglas Campbell, 8th Duke of Argyll (1823-1900), Politician, Lord Privy Seal and Secretary of State for India and writer on science, religion, and politics. 32 Portraits
- Elizabeth Georgiana (née Sutherland-Leveson-Gower), Duchess of Argyll (1824-1878), First wife of 8th Duke of Argyll; daughter of 2nd Duke of Sutherland. 7 Portraits
- Amelia Maria (née Claughton), Duchess of Argyll (1843-1894), Former wife of Hon. Archibald Henry Augustus Anson, and later wife of 8th Duke Argyll; daughter of Thomas Legh Claughton. 2 Portraits
- John George Edward Henry Douglas Sutherland Campbell, 9th Duke of Argyll (1845-1914), Governor-General of Canada. 32 Portraits
- Niall Diarmid Campbell, 10th Duke of Argyll (1872-1949), Landowner. 1 Portrait
- Ian Douglas Campbell, 11th Duke of Argyll (1903-1973), Chief of Clan Campbell. 8 Portraits
- (Ethel) Margaret Campbell (née Whigham), Duchess of Argyll (1912-1993), Former wife of Charles Sweeny, and later third wife of Ian Douglas Campbell, 11th Duke of Argyll; daughter of George Hay Whigham. 53 Portraits
- Mathilda Coster Campbell (née Mortimer), Duchess of Argyll (1925-1997), Fourth wife of 11th Duke of Argyll. 1 Portrait
- Iona Mary Campbell (née Colquhoun), Duchess of Argyll (1945-), Daughter of Sir Ivar Colquhoun of Luss, 8th Bt; wife of 12th Duke of Argyll. 9 Portraits
- Archibald Campbell, 1st Marquess of Argyll (1598-1661), Statesman. 13 Portraits
- Anne Cornwallis, Countess of Argyll (died 1635), Roman Catholic benefactor and supposed author; wife of 7th Earl of Argyll. 2 Portraits
- Archibald Campbell, 9th Earl of Argyll (1629-1685), Statesman. 8 Portraits
- Lady Anne (née Mackenzie), Countess of Argyll (1621-1707), Governess to Prince William of Orange; former wife of 1st Earl of Balcarres, and later second wife of 9th Earl of Argyll. 1 Portrait
- Ariadne, Daughter of Minos and Pasiphaë in Greek mythology. 3 Portraits
- Rita Arias, Wife of Hugo Consuegra Sosa. 2 Portraits
- Prince Aribert of Anhalt (1864-1933), Husband of Princess Marie Louise of Schleswig-Holstein. 2 Portraits
- Ludovico Ariosto (1474-1533), Composer. 1 Portrait
- Brian Aris (1946-), Photographer. 1 Portrait
- Ernest Alfred Aris (1882-1963), Fellow of the Zoological Society; artist and illustrator. 5 Portraits
- Prince Arisugawa Takehito (1862-1913), Naval officer. 1 Portrait
- Ari-Up (Arianna Forster) (1962-2010), Singer; member of The Slits. 4 Portraits
- Elizabeth Arkell (born 1900), Actress. 2 Portraits
- Sir (Thomas) Noel Arkell (1893-1981), Captain. 1 Portrait
- Reginald Arkell (1872-1959), Author and dramatist. 4 Portraits
- William Joscelyn Arkell (1904-1958), Geologist. 2 Portraits
- Margaret Arkley (née McCandlish). 2 Portraits
- Mrs Arkley (active circa 1830). 1 Portrait
- Lady Mary Caroline Charlotte Arkwright (née Byng) (1838-1933), Wife of Richard Arkwright; daughter of 2nd Earl of Strafford. 1 Portrait
- Augustus Peter Arkwright (1821-1887), Naval officer and Conservative Party politician. 1 Portrait
- Charlotte Lucy Arkwright (née Davenport) (1840-1904), Wife of John Hungerford Arkwright; daughter of John Davenport. 1 Portrait
- George Arkwright (circa 1837-1877), Rector of Pencombe, Herefordshire. 1 Portrait
- Sir John Stanhope Arkwright (1872-1954), Politician; MP for Hereford. 2 Portraits
- Sir Joseph Arthur Arkwright (1864-1944), Bacteriologist. 11 Portraits
- Louisa Elizabeth Jane Arkwright (née Milbank) (died 1873), First wife of Francis Arkwright; daughter of Henry John Milbank. 1 Portrait
- Peter Arkwright (1784-1866), Sheriff of Derbyshire. 3 Portraits
- Peter Arkwright (active circa 1957), Lieutenant-Colonel; son of R.A. Akrwright. 2 Portraits
- Sir Richard Arkwright (1732-1792), Engineer and inventor. 2 Portraits
- Richard Arkwright (1755-1843), Mill-owner. 1 Portrait
- Richard Arkwright (1835-1918), Barrister and politician. 1 Portrait
- Ruth (née Wilson), Lady Arkwright (died 1950), Daughter of Joseph W. Wilson; wife of Sir Joseph Arthur Arkwright. 2 Portraits
- Mrs Arkwright (active 1849). 3 Portraits
- Miss Arkwright (born circa 1812). 1 Portrait
- Michael Arlen (1895-1956), Novelist. 15 Portraits
- John Thomas Arlidge (1822-1899), Physician. 1 Portrait
- Henry Bennet, 1st Earl of Arlington (1618-1685), Politician, Lord Chamberlain. 19 Portraits
- Isabella (née de Nassau), Countess of Arlington (1631-1718), Wife of 1st Earl of Arlington. 3 Portraits
- Jennifer Jane Forwood (née Nelson), 11th Baroness Arlington (1939-), Wife of Rodney Simon Dudley Forwood; daughter of Sir Eustace John Blois Nelson. 9 Portraits
- George Arliss (Augustus George Andrews) (1868-1946), Actor. 7 Portraits
- Stephen Harry Tolson Arliss (1895-1954), Vice-Admiral. 4 Portraits
- Arcolano Armafrodito. 1 Portrait
- John Brownlee Lonsdale, 1st Baron Armaghdale (1850-1924), Politician and businessman. 3 Portraits
- Kwesi Armah (died 2006), Ghanian High Commissioner to United Kingdom and Minister for Overseas Trade. 2 Portraits
- Pablo Armando Fernández (1930-), Cuban writer. 5 Portraits
- Joan Armatrading (1950-), Singer. 5 Portraits
- Violet Caroline Josephine Jeanne Rosa Armbruster (Mrs Willis) (1871-1937), Actress; wife of Robert Willis; daughter of Carl Herbert Joseph Armbruster. 1 Portrait
- Sir (Isaac) Frederick Armer (1891-1982), Civil servant. 1 Portrait
- Veronica Armfelt (née Ramsay), Wife of Count Carl Armfelt; daughter of Baron Ramsay of Finland. 3 Portraits
- Maxwell Ashby Armfield (1881-1972), Artist and writer. 0 Portraits
- Robert Armin (circa 1568-1615), Actor and dramatist. 2 Portraits
- Mary Armine (née Talbot), Lady Armine (1594-1676), Benefactor. 3 Portraits
- Jacobus Arminius (Jacob Hermans (Harmans)) (1560-1609), Dutch Reformed theologian. 2 Portraits
- Hon. Serena Helen Christian Armit (née Inskip) (1943-), Wife of John Andrew Brodie Armit; daughter of 2nd Viscount Caldecote. 8 Portraits
- Lady Katharine Jane Elizabeth Armitage (née Carnegie) (1904-1949), Former wife of William Bridgeman Manley, and later wife of Edward Armitage; daughter of 10th Earl of Northesk. 5 Portraits
- Sir Arthur Armitage (1916-1984), Professor of Common Law, Vice-Chancellor, Victoria University of Manchester and President of Queens' College, Cambridge. 1 Portrait
- Sir (Stephen) Cecil Armitage (1889-1962), Army officer and Justice of the Peace. 8 Portraits
- Sir Cecil Hamilton Armitage (1869-1933), Captain. 2 Portraits
- Sir (Charles) Clement Armitage (1881-1973), General. 3 Portraits
- Cyril Moxon Armitage (1900-1966), Dean of Guild of St Bride. 1 Portrait
- Edward Armitage (1817-1896), History painter. 7 Portraits
- Sir Elkanah Armitage (1794-1876), Manufacturer; Mayor. 1 Portrait
- (William) Kenneth Armitage (1916-2002), Sculptor. 12 Portraits
- Robert Armitage (1866-1944), Politician and Lord Mayor of Leeds. 2 Portraits
- Sir Robert Perceval Armitage (1906-1990), Colonial administrator. 1 Portrait
- Robert Selby Armitage (1905-1982), Lieutenant-Commander. 3 Portraits
- Simon Armitage (1963-), Poet, playwright, librettist and author. 1 Portrait
- Valentine Leathley Armitage (1888-1964), Headmaster, Bloxham School, Oxfordshire. 1 Portrait
- Sir Sydney Armitage Armitage-Smith (1876-1932), Civil servant. 1 Portrait
- George Armitstead, 1st Baron Armitstead (1824-1915), Businessman and Liberal politician. 1 Portrait
- John Richard Armitstead (1829-1918), Clergyman. 1 Portrait
- Sir John Alexander Armitt (1946-), Civil engineer; Chair, London 2012 Olympic Delivery Authority. 1 Portrait
- Marie Anne Charlotte Corday d'Armont (1768-1793), Assassin of Jean Paul Marat. 2 Portraits
- A.M. Armour. 1 Portrait
- Thomas Makinson Armour (1890-1963), Bishop of Wangaratta, Australia. 1 Portrait
- Henry Hugh Armstead (1828-1905), Sculptor and illustrator. 3 Portraits
- William Armstrong, 1st Baron Armstrong of Sanderstead (1915-1980), Head of Home Civil Service. 5 Portraits
- William George Armstrong, Baron Armstrong (1810-1900), Armaments manufacturer and industrialist. 7 Portraits
- Robert Armstrong, Baron Armstrong of Ilminster (1927-), Secretary of the Cabinet and Head of Home Civil Service. 2 Portraits
- William Henry Armstrong Fitzpatrick Watson-Armstrong, 1st Baron Armstrong (1863-1941), Major; Justice of the Peace. 8 Portraits
- Winifreda Jane Watson-Armstrong (née Adye), Baroness Armstrong (1860-1914), First wife of 1st Baron Armstrong. 3 Portraits
- William John Montagu Watson-Armstrong, 2nd Baron Armstrong (1892-1972), Soldier. 6 Portraits
- Zaida Cecile Watson-Armstrong (née Drummond-Wolff), Lady Armstrong (died 1978), Wife of 2nd Baron Armstrong; daughter of Cecil Drummond-Wolff. 8 Portraits
- Ada Howard Armstrong (née Randle) (born 1897), Wife of Richard Robins Armstrong; daughter of Howard Randle. 1 Portrait
- Alexander Armstrong (1970-), Comedian and actor. 1 Portrait
- Alun Armstrong (1946-), Actor. 1 Portrait
- Archibald Armstrong (died 1672), Court Fool. 2 Portraits
- Charles Armstrong (1750-1815), Physician. 1 Portrait
- Claude Blakeley Armstrong (1889-1982), Canon Residentiary of Worcester and Canon Emeritus. 1 Portrait
- Edward Armstrong (1846-1928), Historian and teacher. 1 Portrait
- Edward Frankland Armstrong (1878-1948), Chemist. 1 Portrait
- Effie Brook Armstrong (born circa 1877), Daughter of Charles and Julia Armstrong, niece of Frederick and Mary Ann Hollyer (née Armstrong). 2 Portraits
- Ernest Armstrong (1915-1996), Politician and headmaster. 4 Portraits
- Sir George Carlyon Hughes Armstrong, 1st Bt (1836-1907), Newspaper proprietor. 1 Portrait
- Sir George Elliot Armstrong, 2nd Bt Armstrong (1866-1940), Commander of the Royal Navy. 1 Portrait
- Georgy Armstrong. 1 Portrait
- Sir (Harry) Gloster Armstrong (1861-1938), Commercial Adviser to the Manchester Ship Canal Company. 4 Portraits
- Henry Bruce Armstrong (1844-1943), Northern Irish barrister and politician. 2 Portraits
- James Robert Bargrave Armstrong (1893-1980), High Sheriff of County Armagh, soldier, barrister and Civil Affairs Officer in Somalia. 1 Portrait
- James Wells Armstrong (1823-1880), Colonel. 1 Portrait
- John Armstrong (1674-1742), Major-General; Surveyor General of ordnance and chief engineer. 2 Portraits
- John Armstrong (1709-1779), Physician and poet. 5 Portraits
- John Armstrong (1893-1973), Painter and soldier. 4 Portraits
- John Armstrong (1905-1992), Army Chaplain and Assistant Bishop in the Diocese of Exeter. 5 Portraits
- Karen Andersen Armstrong (1944-), Writer. 1 Portrait
- Katherine Fairlie Armstrong (1892-1969), Nurse. 3 Portraits
- Louis ('Satchmo') Armstrong (1900-1971), American jazz musician. 2 Portraits
- Mary Ann Armstrong (born circa 1811), Wife of Thomas Armstrong. 4 Portraits
- Mervyn Armstrong (1906-1984), Bishop of Jarrow and Advisor on Industry to Archbishop of York. 4 Portraits
- Norman Foster Armstrong (1892-1990), Cricketer. 1 Portrait
- Patrick Armstrong, Clerk to the All-Party Parliamentary Group on World Government. 1 Portrait
- Sir Richard Harold Armstrong (1874-1950), Solicitor. 1 Portrait
- Robert Baynes Armstrong (1785-1869), Barrister and politician. 1 Portrait
- St George Bewes Armstrong (1871-1956), General. 1 Portrait
- Sheila Ann Armstrong (1942-), Soprano. 2 Portraits
- Sir Thomas Armstrong (1624?-1684), Army officer. 3 Portraits
- Thomas Armstrong (circa 1808-1881), Upholsterer; father of Mary Anne Hollyer (née Armstrong). 6 Portraits
- Thomas Henry Armstrong (1857-1930), Bishop of Wangaratta, Australia. 1 Portrait
- Sir Thomas Henry Wait Armstrong (1898-1994), Musician and Principal of the Royal Academy of Music. 3 Portraits
- Margaret Elizabeth (née Roberts), Lady Armstrong-Jones (died 1943), Wife of Sir Robert Armstrong-Jones, daughter of Sir Owen Roberts. 4 Portraits
- Sir Robert Armstrong-Jones (1857-1943), Lecturer on mental diseases. 2 Portraits
- Ronald Owen Lloyd Armstrong-Jones (1899-1966), Judge and army officer; father of Earl of Snowdon. 4 Portraits
- Fenella Fitzhardinge Armytage (née Berkeley) (1835-1903), Author; wife of Henry Armytage. 1 Portrait
- Sir George Ayscough Armytage, 7th Bt (1872-1953), Brigadier-General. 5 Portraits
- Grace Armytage (died 1907), Actress; wife of Campbell Bradley. 1 Portrait
- Reginald William Armytage (1903-1984), Rear-Admiral; President of The Naval Ordnance Board. 6 Portraits
- Sylvia Beatrice Armytage (née Staveley) (died 1996), Wife of Reginald William Armytage; daughter of Charles Russell Staveley. 1 Portrait
- Mrs Armytage (active 1860). 1 Portrait
- George Arnald (1763-1841), Marine and landscape painter. 2 Portraits
- Lady (Cynthia) Anne Arnander (née Lindsay, later Lady Fummi) (1904-1997), Former wife of Per Erik Folke Arnander, and later wife of Giovannia Fummi; daughter of 27th Earl of Crawford and 10th Earl of Balcarres. 2 Portraits
- Yvonne Arnaud (1890-1958), Actress. 80 Portraits
- (Alice) Maud Mary Arncliffe Sennett (née Sparagnapane) (1862-1936), Women's suffrage activist. 1 Portrait
- Peter Arne. 2 Portraits
- Thomas Augustine Arne (1710-1778), Composer. 5 Portraits
- Richard Anthony Sayer Arnell (1917-2009), Conductor and composer. 4 Portraits
- Joseph Calasanza, Ritter von Arneth (1791-1863), Numismatist and archaeologist; father of Alfred, Ritter von Arneth. 1 Portrait
- Rudolf Arnheim (1904-2007), Author, art and film theorist and psychologist. 2 Portraits
- Sydney Arnold, 1st Baron Arnold (1878-1945), Politician; Paymaster-General. 5 Portraits
- Sir Alfred Arnold (1835-1908), Politician; MP for Halifax. 1 Portrait
- Allan Cholmondeley Arnold (1893-1962), Major-General. 11 Portraits
- Denis Midgely Arnold (1926-1986), Professor of Music, University of Oxford. 1 Portrait
- Sir Edwin Arnold (1832-1904), Poet and journalist. 5 Portraits
- Frances Lucy ('Flu') Arnold (née Wightman) (1825-1901), Wife of Matthew Arnold. 1 Portrait
- Helen Breen Arnold (née Moore), Theatrical manager; wife of Tom Arnold. 12 Portraits
- John Oliver Arnold (1858-1930), Dean of Metallurgy. 3 Portraits
- Lydia Arnold (circa 1989-), Scientist and inventor. 1 Portrait
- Sir Malcolm Henry Arnold (1921-2006), Composer. 6 Portraits
- Matthew Arnold (1822-1888), Poet, writer and inspector of schools. 18 Portraits
- Ralph Crispian Marshall Arnold (1906-1970), Author and publisher. 1 Portrait
- Reg Arnold (1919-1962), Trumpeter. 1 Portrait
- Ronald Nathan Arnold (1908-1963), Engineer and Professor. 2 Portraits
- Samuel Arnold (1740-1802), Composer. 4 Portraits
- Thomas Arnold (1795-1842), Headmaster of Rugby School. 5 Portraits
- Sir Thomas A. Arnold (1864-1930), Academic. 2 Portraits
- Thomas Charles ('Tom') Arnold (circa 1897-1969), Theatre manager. 14 Portraits
- Sir Thomas Richard ('Tom') Arnold (1947-), Theatre producer, publisher and consultant in Middle East affairs; son of Thomas Charles ('Tom') Arnold. 9 Portraits
- Sir William Henry Arnold (1903-1973), Bailiff of Guernsey. 1 Portrait
- William John Arnold (born 1895), Army officer. 1 Portrait
- Hugh Oakeley Arnold-Forster (1855-1909), Politician, Secretary of State for War and MP for Belfast West and Croydon and author. 5 Portraits
- Hugo Arnot (1749-1786), Writer and advocate. 6 Portraits
- William Arnot (1808-1875), Free Church of Scotland minister. 1 Portrait
- Jake Arnott (1961-), Author. 1 Portrait
- Sir (William) Melville Arnott (1909-1999), Physician and Emeritus Professor of Medicine. 6 Portraits
- Neil Arnott (1788-1874), Physician and natural philosopher. 1 Portrait
- Stanley Arnott (1888-1972), Major-General. 11 Portraits
- Barbara Helen Seton Arnould (née Dury), Wife of Francis Graham Arnould. 1 Portrait
- Jeanne Sylvanie Arnould-Plessy (1819-1897), French actress. 4 Portraits
- Bronis Arnowska, Actress and operetta singer. 3 Portraits
- Sonia Arova (1927-2001), Ballet dancer. 2 Portraits
- Jean Arp (1886-1966), Sculptor, painter, collagist, printmaker and poet. 7 Portraits
- Elizabeth Butler (née Crew), Countess of Arran (circa 1679-1756), Wife of 1st Earl of Arran; daughter of 2nd Baron Crew of Steine. 3 Portraits
- James Hamilton, 2nd Earl of Arran (circa 1519-1575), Magnate and Governor of Scotland. 4 Portraits
- James Hamilton, 3rd Earl of Arran (1537 or 1538?-1609), Magnate and suitor of Mary, Queen of Scots. 3 Portraits
- Philip Yorke Gore, 4th Earl of Arran (1801-1884), Diplomat. 1 Portrait
- Elizabeth Marianne (née Napier), Countess of Arran (died 1899), Wife of 4th Earl of Arran; daughter of Sir William Francis Patrick Napier. 1 Portrait
- Arthur Saunders William Charles Fox Gore, 5th Earl of Arran (1839-1901), Landowner and civil servant. 1 Portrait
- Winifred Ellen Gore (née Reilly), Countess of Arran (died 1921), Lady-in-waiting to Princess Christian of Schleswig-Holstein; second wife of 5th Earl of Arran. 3 Portraits
- Arthur Jocelyn Charles Gore, 6th Earl of Arran (1868-1958), Lord Lieutenant. 5 Portraits
- Arthur Paul Gore, 7th Earl of Arran (1903-1958), Author and translator. 8 Portraits
- Arthur Gore, 8th Earl of Arran (1910-1983), Conservative politician. 1 Portrait
- Carl Arrindell (1961-), Journalist. 1 Portrait
- Gillian Arrindell (1959-), NGO Coordinator. 1 Portrait
- Mark Arrindell (1962-). 1 Portrait
- Steve Arrindell (1963-). 1 Portrait
- Count Arrivabene. 1 Portrait
- Sir William Arrol (1839-1913), Civil engineer and politician. 2 Portraits
- Gilbert John Arrow (1873-1948), Deputy Keeper Entomology, British Museum. 1 Portrait
- Aaron Arrowsmith (1750-1823), Geographer. 1 Portrait
- Edmund Arrowsmith (1585-1628), Jesuit. 2 Portraits
- Sir Edwin Porter Arrowsmith (1909-1992), Colonial administrator. 1 Portrait
- Pat Arrowsmith (1930-), Peace campaigner; author. 1 Portrait
- Antoine François Marie Artaud (1767-1838), Painter and illustrator; Archaeologist. 1 Portrait
- William Artaud (1763-1823), Portrait painter. 2 Portraits
- Madame Artaud. 1 Portrait
- Gemma Arterton (1986-), Actress. 1 Portrait
- King Arthur (active circa 6th century), Legendary warrior and supposed king of Britain. 1 Portrait
- Arthur, Prince of Wales (1486-1502), Eldest son of Henry VII. 6 Portraits
- Prince Arthur, 1st Duke of Connaught and Strathearn (1850-1942), Field Marshal, Governor General of Canada; son of Queen Victoria. 158 Portraits
- Prince Arthur of Connaught (1883-1938), Governor-General of South Africa; son of 1st Duke of Connaught and grandson of Queen Victoria. 44 Portraits
- Sir Charles Gordon Arthur (1884-1953), Colonel. 4 Portraits
- Sir Geoffrey George Arthur (1920-1984), Diplomat. 1 Portrait
- Sir George Arthur, 1st Bt (1784-1854), Colonial official. 1 Portrait
- Sir George Compton Archibald Arthur, 3rd Bt (1860-1946), Soldier and courtier. 1 Portrait
- Julia Arthur (Ida Lewis; later Mrs B.P. Cheney Jr) (1868 or 1869-1950), Stage and film actress. 1 Portrait
- Sir (John) Norman Stewart Arthur (1931-), Lieutenant-General. 7 Portraits
- Winifred Arthur-Jones (active 1902-1927), Actress; wife of Leslie Faber. 1 Portrait
- Paul ('Bonehead') Arthurs (1965-), Musician; rhythm guitarist for Oasis. 2 Portraits
- Artillery, Combat arm of the British Army. 1 Portrait
- M.I.A (Mathangi ('Maya') Arulpragasam) (1975-), Singer and artist. 1 Portrait
- Grace Arundale (née Kelly) (active 1893-1907), Actress and singer; sister of Sybil Arundale. 1 Portrait
- Sybil Arundale (née Kelly) (1882-1965), Actress and singer; sister of Grace Arundale. 6 Portraits
- Aletheia (née Talbot), Countess of Arundel and Surrey (circa 1590-1654), Heiress and patron of art; wife of Thomas Howard. 33 Portraits
- Richard Fitzalan, 3rd Earl of Arundel and 8th Earl of Surrey (circa 1313-1376), Soldier, diplomat, and royal councillor, known as 'Copped Hat'. 2 Portraits
- Thomas Fitzalan, 5th Earl of Arundel and 10th Earl of Surrey (1381-1415), Knight. 1 Portrait
- John Fitzalan, 7th Earl of Arundel (1408-1434), Knight. 1 Portrait
- William Fitzalan, 9th Earl of Arundel (1417-1487), Knight, Constable of Dover, Warden of the Cinque Ports. 1 Portrait
- Eleanor, Countess of Arundel (1318-1372), Lady-in-waiting; former wife of 2nd Baron Beaumont, and later second wife of 10th Earl of Arundel; daughter of 3rd Earl of Lancaster. 2 Portraits
- William Fitzalan, 11th Earl of Arundel (circa 1476-1544), Magnate. 1 Portrait
- Henry Fitzalan, 12th Earl of Arundel (1511?-1580), Soldier and courtier. 6 Portraits
- Beatrice, Countess of Arundel and Surrey (circa 1386-1439), Illegitimate daughter of John I of Portugal; wife of Thomas Fitzalan, 5th Earl of Arundel and 10th Earl of Surrey. 1 Portrait
- Philip Howard, 13th Earl of Arundel (1557-1595), Nobleman and Catholic martyr. 2 Portraits
- Anne Howard (née Dacre), Countess of Arundel (1557-1630), Noblewoman and priest harbourer. 2 Portraits
- Thomas Howard, 14th Earl of Arundel, 4th Earl of Surrey and 1st Earl of Norfolk (1585-1646), Patron of art and collector. 68 Portraits
- Henry Frederick Howard, 15th Earl of Arundel, 5th Earl of Surrey and 2nd Earl of Norfolk (1608-1652), Royalist soldier and politician; MP for Arundel and Callan. 11 Portraits
- Joan Neville, Countess of Arundel (circa 1423-1462), Daughter of 5th Earl of Salisbury; wife of 16th Earl of Arundel. 1 Portrait
- Elizabeth (née Stuart), Countess of Arundel and Surrey (1610-1673 or 1674), Wife of 22nd Earl of Arundel; daughter of 3rd Duke of Lennox. 7 Portraits
- John Arundel (1777-1848), Congregational minister and Home Secretary of the London Missionary Society. 1 Portrait
- Thomas Arundel (1353-1414), Archbishop of Canterbury and Lord Chancellor. 2 Portraits
- Thomas Arundell, 1st Baron Arundell of Wardour (1560-1639), Soldier of fortune. 3 Portraits
- Thomas Arundell, 2nd Baron Arundell of Wardour (1584-1643). 2 Portraits
- Blanche Arundell (née Somerset), Lady Arundell of Wardour (1583-1649), Royalist noblewoman. 2 Portraits
- Henry Arundell, 3rd Baron Arundell of Wardour (circa 1608-1694), Royalist army officer and politician. 2 Portraits
- Cicely Arundell (née Compton), Lady Arundell of Wardour (1609 or 1610-1676), Wife of 3rd Baron Arundell of Wardour. 1 Portrait
- Theresa (née Stourton), Lady Arundell of Wardour (1812-1878), Third wife of 11th Baron Arundell of Wardour; daughter of 18th Baron Stourton. 1 Portrait
- Gerald Arthur Arundell, 15th Baron Arundell of Wardour (1861-1939), Third son of Theodore Arundell. 12 Portraits
- Ivy Florence Mary (née Segrave), Lady Arundell of Wardour (1875-1960), Wife of 15th Baron Arundell of Wardour; daughter of W.F. Segrave. 13 Portraits
- John Francis Arundell, 16th Baron Arundell of Wardour (1907-1944), Soldier. 9 Portraits
- Barbara Arundell (née Clarke), Lady Wood, Wife of Sir John Stuart Page Wood, 6th Bt; daughter of Arundell Clarke. 3 Portraits
- Francis Vyvyan Jago Arundell (1780-1846), Traveller and antiquary. 1 Portrait
- John Arundell, Son of Sir Robert Duncan Harris Arundell. 2 Portraits
- Sir Robert Duncan Harris Arundell (1904-1989), Brigadier. 4 Portraits
- Miss Arundell (active 1860), Daughter of 11th Baron Arundell of Wardour. 2 Portraits
- Frederick Arup, Businessman; uncle of Sir Ove Arup. 1 Portrait
- Sir Ove Arup (1895-1988), Civil engineer. 4 Portraits
- Sarkis Arutchian, Armenian painter. 3 Portraits
- Arwyn Randall Arwyn, Baron Arwyn (1897-1978), Chartered Mining Engineer, businessman and company director. 2 Portraits
- Beatrix Emily Bassett (née Organ), Lady Alwyn (1914-), Second wife of Baron Arwyn. 3 Portraits
- H.E.H. Asaf Jah, Nizam of Hyderabad (1886-1967), State ruler and 'Faithful Ally of the British Government'. 3 Portraits
- Sir Edward Okyere Asafu-Adjaye (1903-1976), Lawyer and Ghana's first High Commissioner to London. 4 Portraits
- Mrs F. Asafu Adjaye. 1 Portrait
- Koichiro Asakai (died 1995), Japanese Charge' d'Affaires. 2 Portraits
- Khadambi Asalache (1935-2006), Poet, novelist, philosopher of mathematics and civil servant. 1 Portrait
- Amma Asante (1969-), Writer and film director. 2 Portraits
- Bishop of St Asaph (active 1741), Bishop. 2 Portraits
- Anthony Ascham (baptised 1614-1650), Diplomat and pamphleteer. 1 Portrait
- Roger Ascham (1515-1568), Author and tutor to Elizabeth I (when Princess Elizabeth). 4 Portraits
- (Thomas Stange Heiss) Oscar Asche (1871-1936), Actor and theatre producer. 15 Portraits
- Lida Ascher (1910-1983), Textile designer; wife of Zika Ascher. 6 Portraits
- Zika Ascher (1910-1992), Textile designer and supplier. 5 Portraits
- Frank David Ascoli (1883-1958), Rubber expert and Indian civil servant. 3 Portraits
- H.E. Ascoli, Lieutenant-Commander. 1 Portrait
- Roy Ascott (1934-), Artist and teacher. 1 Portrait
- Robert Ascroft (1847-1899), Politician and solicitor. 1 Portrait
- Manola Asensio (1946-), Ballet dancer. 1 Portrait
- Hannah, Princess Asfa Yilma (Mrs Algernon Holland) (died 1945), Princess of Ethiopia, linguist and author. 4 Portraits
- Ásgeir Ásgeirsson (1894-1972), President of Iceland 1952-1968. 3 Portraits
- Fortescue Leo Ash (1882-1956), Bishop of Rockhampton, Australia. 1 Portrait
- Harold Garton Ash (died 1962), Chartered accountant. 2 Portraits
- Hon. Irene Evelyn Beatrice Ash (née Molesworth) (1895-1949), Former wife of Charles Donovan Rowley, and later wife of Francis Henry Ash; daughter of 9th Viscount Molesworth. 2 Portraits
- James Ash (active mid 17th century), Politician; MP for Bath in 1640. 1 Portrait
- Maie Ash (1888-1923), Actress. 6 Portraits
- Russell Ash (1946-2010), Writer. 1 Portrait
- Walter William Hector Ash (1906-1998), Rear-Admiral and electrical engineer. 7 Portraits
- Edward Gibson, 1st Baron Ashbourne (1837-1913), Lawyer and politician, Lord Chancellor of Ireland. 12 Portraits
- William Gibson, 2nd Baron Ashbourne (1868-1942), Justice of the Peace. 10 Portraits
- Edward Russell Gibson, 3rd Baron Ashbourne (1901-1983), Vice-Admiral. 4 Portraits
- Reta Frances Manning (née Hazeland), Lady Ashbourne (died 1996), Wife of Edward Russell Gibson; daughter of E.M. Hazeland. 1 Portrait
- Sir Noel Ashbridge (1889-1975), Engineer and broadcasting pioneer. 1 Portrait
- Ashbridge (active 1787), Musician. 2 Portraits
- Emily Theophila (née Metcalfe), Viscountess Ashbrook (1790-1885), Second wife of 4th Viscount Ashbrook; daughter of Sir Thomas Metcalfe, 1st Bt. 1 Portrait
- Mrs Ashburn (active 1866). 1 Portrait
- George Ashburnham, 3rd Earl of Ashburnham (1760-1830). 1 Portrait
- Charlotte Ashburnham (née Percy), Countess of Ashburnham (1766-1862), Second wife of George, 3rd Earl of Ashburnham; daughter of Algernon Percy, 1st Earl of Beverley. 3 Portraits
- Bertram Ashburnham, 5th Earl of Ashburnham (1840-1913), Landowner. 1 Portrait
- Lady Elizabeth Sophia Ashburnham (1786-1879), Daughter of 3rd Earl of Ashburnham. 1 Portrait
- Sir Cromer Ashburnham (1831-1917), Major-General. 1 Portrait
- Elizabeth Ashburnham (née Kenn) (1593-1663), Former wife of 1st Baron Poulett, and later wife of John Ashburnham. 1 Portrait
- Frances Ashburnham (née Holland) (circa 1614-circa 1651), First wife of John Ashburnham. 1 Portrait
- John Ashburnham (1603-1671), Courtier, diplomat, royalist and politician; MP for Hastings and Sussex. 3 Portraits
- John Dunning, 1st Baron Ashburton (1731-1783), Solicitor-General. 14 Portraits
- Elizabeth Dunning (née Baring), Lady Ashburton (1744-1809), Wife of John Dunning, 1st Baron Ashburton. 1 Portrait
- Alexander Baring, 1st Baron Ashburton (1773-1848), Financier. 11 Portraits
- (William) Bingham Baring, 2nd Baron Ashburton (1799-1864), Statesman. 3 Portraits
- Alexander Hugh Baring, 4th Baron Ashburton (1835-1899), Politician and landowner. 1 Portrait
- Leonora Caroline Baring (née Digby), Lady Ashburton (1844-1930), Wife of 4th Baron Ashburton. 1 Portrait
- Francis Denzil Edward Baring, 5th Baron Ashburton (1866-1938), Landowner. 2 Portraits
- Mabel Edith (née Hood), Lady Ashburton (1866-1904), Wife of 5th Baron Ashburton; daughter of 4th Viscount Hood. 1 Portrait
- Alexander Francis St Vincent Baring, 6th Baron Ashburton (1898-1991), Receiver-General to the Duchy of Cornwall. 12 Portraits
- John Francis Harcourt Baring, 7th Baron Ashburton (1928-), Merchant banker and patron of the arts. 1 Portrait
- Susan Mary Baring (née Renwick), Lady Ashburton (1930-), Daughter of 1st Baron Renwick of Coombe; first wife of John Francis Harcourt Baring, 7th Baron Ashburton. 2 Portraits
- Sarah Cornelia (née Spencer-Churchill), Lady Ashburton (1935-), Former wife of John Colin Crewe, and later second wife of 7th Baron Ashburton; daugther of John George Spencer-Churchill. 1 Portrait
- James Lloyd Ashbury (1834-1895), Yachtsman and Conservative politician; MP for Brighton. 2 Portraits
- Eric Ashby, 1st Baron Ashby (1904-1992), Chancellor of Queen's University, Belfast. 1 Portrait
- Arthur Wilfred Ashby (1886-1953), Economist. 4 Portraits
- Carole Ashby (1955-), Actress and producer. 1 Portrait
- Edward Quenby Ashby (1805-1871), Reverend; Rector of Dunton, Buckinghamshire. 1 Portrait
- Jennifer Susan Ashby (née Buckman) (1944-), Wife of John Jellis Ashby. 4 Portraits
- Robert Ashby (1774-1843), Writing engraver. 1 Portrait
- Thomas Ashby (1874-1931), Archaeologist. 2 Portraits
- Joseph Ashby-Sterry (circa 1835-1917), Painter, novelist and poet. 1 Portrait
- Henry Cubitt, 2nd Baron Ashcombe (1867-1947), Politician; MP for Reigate. 8 Portraits
- Jean (née Garland), Lady Ashcombe, Third wife of 3rd Baron Ashcombe; daughter of Charles Tuller Garland. 1 Portrait
- Dame Frances Mary Ashcroft (1952-), Professor of Physiology. 1 Portrait
- Dame Edith Margaret Emily ('Peggy') Ashcroft (1907-1991), Actress. 43 Portraits
- Richard Ashcroft (1971-), Musician; singer and guitarist for The Verve. 1 Portrait
- Hugh Edward Ashdown (1904-1977), Bishop of Newcastle. 2 Portraits
- A. Ashdowne. 1 Portrait
- Patrick Ashe (1955-1980), Son of Diana Melly and Michael H. St George Ashe. 2 Portraits
- Simeon Ashe (died 1662), Nonconformist divine. 5 Portraits
- E. Asher (active 1923). 1 Portrait
- H. Asher (active 1923). 1 Portrait
- Jack? Asher? (active 1923). 1 Portrait
- Jane Asher (1946-), Actress and writer. 4 Portraits
- Peter Asher (1944-), Guitarist, singer, manager and record producer. 1 Portrait
- (Dorothy) Renée Asherson (née Ascherson) (1915-2014), Actress; wife of Robert Donat. 1 Portrait
- Albert Henry Stanley, Baron Ashfield (1874-1948), Chairman of London Passenger Transport Board. 15 Portraits
- Grace Lowrey (née Woodruff), Lady Ashfield (1878-1962), Wife of 1st Baron Ashfield; daughter of Edward Lowrey Woodruff. 9 Portraits
- Sir Cyril Ernest Ashford (1867-1951), Headmaster. 1 Portrait
- Margaret Mary Julia ('Daisy') Ashford (1881-1972), Child author. 1 Portrait
- Thomas Henry Ashhurst (1784-1857), Fellow of All Souls' College, Oxford. 1 Portrait
- Sir William Ashhurst (1647-1720), Lord Mayor of London, banker and politician. 1 Portrait
- Sir William Henry Ashhurst (1725-1807), Judge. 2 Portraits
- Jack Ashley, Baron Ashley of Stoke (1922-2012), Labour politician; MP for Stoke-on-Trent. 2 Portraits
- Anthony Ashley-Cooper, Lord Ashley (1900-1947), Army officer. 13 Portraits
- Françoise (née Soulier), Lady Ashley (later Goussault) (died 1999), Second wife of Anthony Ashley-Cooper, Lord Ashley, and later wife of François Goussault; daughter of Georges Soulier. 11 Portraits
- Eve Ashley. 1 Portrait
- (Anthony) Evelyn Melbourne Ashley (1836-1907), Politician and biographer. 2 Portraits
- Laura Ashley (1925-1985), Designer. 3 Portraits
- (Anthony) Lionel George Ashley (1838-1914), Deputy Lieutenant for Dorset; son of 7th Earl of Shaftesbury. 1 Portrait
- Maria Anne Ashley (née Baillie), Wife of Anthony William Ashley. 3 Portraits
- Mary Ashley (née Wickstead), formerly Mrs Worlidge (circa 1720-circa 1790), Pastellist, needlework artist and publisher; second wife of Thomas Worlidge. 2 Portraits
- Maude Ashley, Wife of Evelyn Ashley. 1 Portrait
- Minnie Ashley (1875-1945), American actress, singer and dancer; wife of William Astor Chanler. 1 Portrait
- Sir Percy Walter Llewellyn Ashley (1876-1945), Vice-President of British Standards Institution. 3 Portraits
- Sylvia (née Hawkes), Lady Ashley (1904-1977), Actress and society beauty; former wife of Lord Ashley and of Douglas Fairbanks Sr and of 6th Baron Stanley of Alderley and of Clark Gable, and later wife of Prince Dimitri Djordjadze. 10 Portraits
- Sir William Ashley (1860-1927), Economic historian. 1 Portrait
- Lady Lettice Mildred Mary Ashley-Cooper (1911-1990), Flight Officer W.A.A.F. and author; daughter of 9th Earl of Shaftesbury. 1 Portrait
- Anthony Henry Ashley-Cooper (1807-1858), Politician; MP for Dorchester. 1 Portrait
- Maurice Ashley-Cooper (1675-1726), Classical scholar; younger brother of 3rd Earl of Shaftesbury. 1 Portrait
- Henry Ashley-Scarlett (1886-1976), Lieutenant-Colonel, school manager and Mayor of Hampstead. 2 Portraits
- Matthew Ashman (1962-1995), Musician; member of Adam and the Ants and Bow Wow Wow. 1 Portrait
- Mickey Ashman (1927-2015), Musician, bassist for the 'Humphrey Lyttelton Band'. 1 Portrait
- Sir Ellis Ashmead-Bartlett (1849-1902), Politician; MP for Eye and Sheffield Ecclesall. 10 Portraits
- Bernard Ashmole (1894-1988), Archaeologist and art historian. 8 Portraits
- Elias Ashmole (1617-1692), Antiquary. 6 Portraits
- Edward Bailey Ashmore (1872-1953), Major-General; founder of Royal Observer Corps.. 5 Portraits
- Sir Edward Beckwith Ashmore (1919-2016), Admiral of the Fleet. 23 Portraits
- Sir Peter William Beckwith Ashmore (1921-2002), Equerry to King George VI. 3 Portraits
- Philip George Ashmore (1916-2002), Professor of Physical Chemistry and Director of Studies of Natural Sciences, Cambridge. 1 Portrait
- Thomas Gair Ashton, 1st Baron Ashton-of-Hyde (1855-1933), Politician and Justice of the Peace. 7 Portraits
- Thomas Henry Raymond Ashton, 2nd Baron Ashton of Hyde (1901-1983), Major, Justice of the Peace and Master of the Heythrop Hounds. 1 Portrait
- Charles Ashton (1665-1752), Divine. 1 Portrait
- Edward Ashton (died 1658), Royalist colonel and conspirator. 1 Portrait
- Sir Frederick Ashton (1904-1988), Founder-choreographer and Director of the Royal Ballet. 30 Portraits
- Sir Hubert Ashton (1898-1979), Politician and director of public companies. 4 Portraits
- John Ashton (died 1691), Courtier and Jacobite conspirator. 2 Portraits
- John Ashton, Son of Nicholas Ashton of Liverpool. 1 Portrait
- John William Ashton (1866-1964), Bishop of Grafton. 1 Portrait
- Sir (Arthur) Leigh Bolland Ashton (1897-1983), Director of the Victoria & Albert Museum. 5 Portraits
- Norman Henry Ashton (1913-2000), Pathologist. 2 Portraits
- Thomas Ashton (1716-1775), Clergyman. 6 Portraits
- Thomas Ashton (1775-1848), Cotton manufacturer. 2 Portraits
- Thomas Southcliffe Ashton (1889-1968), Economic historian. 1 Portrait
- Miss Ashton (active 1918), Dancer. 2 Portraits
- David Ashton Ashton-Bostock (1930-2002), Son of John Bostock. 1 Portrait
- Robert Power Trench, 4th Baron Ashtown (1897-1966), Lieutenant. 6 Portraits
- Dudley Oliver Trench, 5th Baron Ashtown (1901-1979), Lieutenant-Colonel and Assistant Chief Constable, War Department Constabulary. 2 Portraits
- Charles Ashurst (active 1807), Major. 3 Portraits
- William Henry Ashurst (1792-1855), Solicitor and undersheriff of London. 3 Portraits
- Lena Ashwell (née Lena Margaret Pocock, later Lady Simson) (1872-1957), Actress, theatre manager, producer and writer; wife of Sir Henry John Forbes Simson; daughter of Charles Ashwell Boteler Pocock. 19 Portraits
- Henry Ashworth (1794-1880), Founder of Anti-Corn Law League; friend of Cobden. 1 Portrait
- James Hartley Ashworth (1874-1936), Professor of Zoology. 1 Portrait
- John Michael Ashworth (1938-), Chairman of the Board of the British Library. 2 Portraits
- Dame Veronica Margaret Ashworth (1910-1977), Air Commandant-Matron-in-Chief. 1 Portrait
- George Edward Asker, Vicar, St Andrews, Lambeth. 4 Portraits
- Lady Susan Alice Askew (née Egerton) (1913-2010), Former wife of John Majoribanks Askew; daughter of 4th Earl of Ellesmere. 3 Portraits
- Anthony Askew (1722-1774), Physician and scholar. 1 Portrait
- Sir Henry Askew (1775-1847), Lieutenant-General. 1 Portrait
- Anthea Shirley Askey (1933-1999), Actress. 1 Portrait
- Anthony Askey (died 1982), Businessman. 1 Portrait
- Arthur Askey (1900-1982), Actor and entertainer. 4 Portraits
- George Ranken Askwith, Baron Askwith (1861-1942), Industrial arbitrator and civil servant. 17 Portraits
- Ellen (née Peel), Lady Askwith (died 1962), Writer, sub-editor and war worker; former wife of Henry Graham, and later wife of 1st Baron Askwith; daughter of Archibald Peel. 4 Portraits
- Hon. Betty Ellen Askwith (1909-1995), Writer; daughter of 1st Baron Askwith. 15 Portraits
- Wilfred Marcus Askwith (1890-1962), Bishop of Blackburn and of Gloucester. 8 Portraits
- Grégoire Aslan (1908-1982), Actor. 1 Portrait
- Charles Herbert Aslin (1893-1959), Architect. 2 Portraits
- James Asperne (1757-1820), Bookseller and proprietor of the 'European Magazine'. 1 Portrait
- Lady Sarah Maguerite ('Sally') Aspinall (née Curzon) (1945-), Former wife of Piers Raymond Courage, and later wife of John Victor Aspinall; daughter of 5th Earl Howe. 7 Portraits
- Sir Algernon Edward Aspinall (1871-1952), Consultant, Imperial College of Tropical Agriculture. 7 Portraits
- John Ralph Aspinall (1878-1946), Major. 1 Portrait
- Sir John Audley Frederick Aspinall (1851-1937), Railway engineer. 1 Portrait
- John Bridge Aspinall (1877-1932), City Remembrancer. 2 Portraits
- John Victor Aspinall (1926-2000), Gambler and zoo owner. 1 Portrait
- Kathleen (née Mason), Lady Aspinall, Wife of Sir Algernon Edward Aspinall; daughter of William Augustus Mason. 6 Portraits
- Muriel Aspinall (née Lawson Johnston), Second wife of John Ralph Aspinall; daughter of John Lawson Johnston. 1 Portrait
- Neil Aspinall (1942-2008), Assistant and road manager for The Beatles. 1 Portrait
- Robert Augustus Aspinall (active 1860s), Magistrate; father of Sir Algernon Edward Aspinall and Lt-Col Robert Lowndes Aspinall. 2 Portraits
- Cecil Faber Aspinall-Oglander (1878-1959), Brigadier-General. 5 Portraits
- Henry Aspinwall (active 1797). 2 Portraits
- Cyril Asquith, Baron Asquith of Bishopstone (1890-1954), Judge; son of 1st Earl of Oxford and Asquith. 12 Portraits
- (Helen) Violet Bonham Carter (née Asquith), Baroness Asquith of Yarnbury (1887-1969), President of the Liberal Party Organisation; wife of Sir Maurice Bonham Carter; daughter of Herbert Asquith. 31 Portraits
- Lady Cynthia Mary Evelyn Asquith (née Charteris) (1887-1960), Author and Private Secretary to JM Barrie; wife of Herbert Asquith; daughter of 11th Earl of Wemyss and March. 8 Portraits
- Lady Helen Frances Asquith (1908-2000), Teacher; daughter of Raymond Asquith. 6 Portraits
- Anthony Asquith (1902-1968), Film director; youngest son of Herbert Henry Asquith, 1st Earl of Oxford and Asquith. 30 Portraits
- Arthur Melland Asquith (1883-1939), Brigadier-General and civil servant in Sudan; recipient of the Distinguished Service Order. 4 Portraits
- Hon. Betty Constance Asquith (née Manners) (1889-1962), Wife of Hon. Arthur Melland Asquith. 10 Portraits
- Cyril Edward Asquith (1902-1967), Author. 4 Portraits
- Diana Eveline Montagu Asquith (née Battye) (1915-2005), First wife of Michael Henry Asquith; daughter of Perceval Lawrence Montagu Battye. 8 Portraits
- Katharine Frances Asquith (née Horner) (1885-1976), Voluntary Aid Detachment nurse and patron of the arts; daughter of Sir John and Lady Horner; wife of Raymond Asquith. 10 Portraits
- Paul Asquith (1927-1984), Younger son of Baron Asquith of Bishopton. 2 Portraits
- Raymond Asquith (1878-1916), Scholar and army officer; son of Herbert Henry Asquith, 1st Earl of Oxford and Asquith. 2 Portraits
- Stephen Andrew Romilly Michael Asquith (1944-), Son of Michael Henry Asquith. 2 Portraits
- Lilah Assanti (née O'Brien) (1884-1968), Former wife of Hon. Coulson Churchill Fellowes, and later wife of Nobile Riccardo Assanti; daughter of 14th Baron Inchiquin. 3 Portraits
- Ann Asser (active 1930s-1940s), Daughter of Sir John Asser. 1 Portrait
- Sir (Joseph) John Asser (1867-1949), General. 4 Portraits
- Jacqueline Jill Assheton (née Harris) (1939-), Wife of Hon. Nicholas Assheton; daughter of Sir Arthur Travers Harris. 3 Portraits
- Mildred Estelle Sybella Assheton, Wife of Sir Ralph Cockayne Assheton, 1st Bt. 1 Portrait
- Hon. Nicholas Assheton (1934-2012), Treasurer and Extra Equerry to the Queen Mother; son of 1st Baron Clitheroe. 1 Portrait
- Sir Ralph Cockayne Assheton, 1st Bt (1860-1955), Aristocrat and public official. 1 Portrait
- Miss Assheton Smith. 1 Portrait
- Peter St. Clair Assinder (1922-2008), Actor. 1 Portrait
- Assistant Adjutant General, Administrative officer in the British Army. 1 Portrait
- Assistant Quartermaster General, Officer in charge of supplies for the British Army. 1 Portrait
- Serafima Astafieva (1876-1934), Ballet dancer. 1 Portrait
- Adèle Astaire (Lady Charles Cavendish) (1898-1981), Actress and dancer; sister of Fred Astaire. 7 Portraits
- Fred Astaire (1899-1987), Dancer, actor and choreographer. 2 Portraits
- Sir John Meir Astbury (1860-1939), Judge. 1 Portrait
- William Thomas Astbury (1898-1961), Physicist, crystallographer and molecular biologist. 5 Portraits
- William Astell (1774-1847), Chairman of the East India Company. 3 Portraits
- Nils Asther (1897-1981), Actor. 1 Portrait
- Thomas Astle (1735-1803), Keeper of the Records, antiquary and palaeographer. 2 Portraits
- Jacob Astley, Baron Astley (1579-1652), Soldier and royalist commander; Major-General of the infantry. 4 Portraits
- Sir Bernard Astley (died 1645), Royalist; son of Jacob Astley, Baron Astley. 1 Portrait
- Sir Edward Astley, 4th Bt (1729-1802), Collector and politician; MP for Norfolk. 1 Portrait
- Edward Evelyn Astley (1842-1921), Son of Henry Nicholas Astley. 1 Portrait
- Hon. Evelyn Vere Astley (née Strover) (1879-1969), Wife of Hon. Charles Melton Astley; daughter of George Augustus Strover. 3 Portraits
- Henrietta Susanna Astley (née Hanbury-Tracy) (1847-1926), Wife of Thurlow Augustus Astley; daughter of Hon. Henry Hanbury-Tracy. 1 Portrait
- John Astley (circa 1507-1596), Courtier. 1 Portrait
- John Astley (1724-1787), Portrait painter. 1 Portrait
- John Astley (1768-1821), Equestrian performer; son of Philip Astley. 1 Portrait
- John Astley. 1 Portrait
- Sir John Dugdale Astley, 3rd Bt (1828-1894), Sportsman. 6 Portraits
- Philip Astley (1742-1814), Equestrian performer. 4 Portraits
- Rhoda (née Delaval), Lady Astley (1725-1757), Pastellist. 3 Portraits
- Hon. Simon Nevill Astley (1919-1946), Major; son of 21st Baron Hastings. 5 Portraits
- Colonel Astley, Colonel. 1 Portrait
- Walter Aston, 2nd Baron Aston (1584-1639), Ambassador. 3 Portraits
- Francis William Aston (1877-1945), Experimental physicist. 15 Portraits
- Sir George Grey Aston (1861-1938), Major-General. 3 Portraits
- Harvey Aston (1815-1839). 1 Portrait
- Maude Aston (active mid 1900s), Actress. 1 Portrait
- Sir Walter Aston (1530-1589), Sheriff of Staffordshire and Justice of the Peace. 1 Portrait
- William George Aston (1841-1911), Japanese scholar. 1 Portrait
- John Aston Sr (1921-2003), Footballer. 7 Portraits
- Waldorf Astor, 2nd Viscount Astor (1879-1952), Newspaper proprietor. 13 Portraits
- Nancy Witcher Astor (née Langhorne), Viscountess Astor (1879-1964), Conservative politician; MP for Plymouth Sutton; former wife of R. G. Shaw, and later wife of 2nd Viscount Astor; daughter of Chiswell Dabney Langhorne. 37 Portraits
- William Waldorf Astor, 3rd Viscount Astor (1907-1966), Politician and businessman. 15 Portraits
- Sarah Katharine Elinor Astor (née Norton), Viscountess Astor (later Baring) (1920-2013), Socialite and war worker; former wife of 3rd Viscount Astor, and later wife of Thomas Baring; daughter of 6th Baron Grantley. 7 Portraits
- (Janet) Bronwen (née Alun Pugh), Viscountess Astor (1930-2017), Fashion model; third wife of 3rd Viscount Astor. 2 Portraits
- John Jacob Astor, 1st Baron Astor of Hever (1886-1971), Newspaper proprietor. 8 Portraits
- Violet Mary (née Elliot-Murray-Kynynmound), Lady Astor of Hever (1889-1965), Former wife of Lord Charles George Francis Mercer-Nairne, and later wife of 1st Baron Astor of Hever; daughter of 4th Earl of Minto. 2 Portraits
- Gavin Astor, 2nd Baron Astor of Hever (1918-1984), Newspaper proprietor. 4 Portraits
- Lady Irene Violet Freesia Janet Augusta Astor of Hever (née Haig) (1919-2001), Wife of 2nd Baron Astor of Hever; daughter of 1st Earl Haig. 6 Portraits
- (Ava) Alice (Muriel) Astor (later Obolensky, later von Hofmannsthal, later Pleydell-Bouverie) (1902-1956), Socialite and patron of the arts; daughter of John Jacob Astor IV; former wife of Prince Sergei Obolensky and of Raimund von Hofmannsthal, and later wife of David Pleydell-Bouverie. 1 Portrait
- Ana Inez Astor (née Carcano y Morra) (1918-1992), First wife of Sir John Jacob Astor; daughter of Don Miguel Angel Carcano. 10 Portraits
- (Francis) David Langhorne Astor (1912-2001), Newspaper editor and philanthropist. 6 Portraits
- David Waldorf Astor (1943-), Businessman; eldest son of Hon. Michael Langhorne Astor. 7 Portraits
- Sir John Jacob Astor (1918-2000), Politician and jockey. 5 Portraits
- Hon. Michael Langhorne Astor (1916-1980), Politician. 12 Portraits
- Michael Ramon Langhorne Astor (1946-), Eldest son of Sir John Jacob Astor. 10 Portraits
- Stella Inez Astor (1949-), Granddaughter of 2nd Viscount Astor; former wife of Martin Wilkinson. 11 Portraits
- Astrid, Queen of the Belgians (1905-1935), Wife of Leopold III, King of the Belgians; daughter of Prince Carl of Sweden. 12 Portraits
- Astro (Terence Wilson) (1957-), Musician; percussionist and trumpeter of UB40. 1 Portrait
- David Francis William Atcherley (1904-1952), Air Vice-Marshal. 8 Portraits
- Llewellyn William Atcherley (1871-1954), Colonel. 8 Portraits
- Sir Roger Llewellyn Atcherley (1904-1970), Air Marshal. 8 Portraits
- Jane Atfield (1964-), Furniture designer. 1 Portrait
- Edward Athawes (active late 1780s), Virginia merchant. 1 Portrait
- King Athelstan (Aethelstan) (895-940), King of the Anglo-Saxons. 3 Portraits
- Francis Henry Atherley (1831-1897), Army officer. 2 Portraits
- Sydney Kerr Buller Atherley (1837-1878), Son of Rev. Arthur Atherley. 2 Portraits
- Llewellyn Archer Atherley-Jones (1851-1929), Judge, politician and writer. 5 Portraits
- Alice Atherton (1854-1899), Actress; wife of Willie Edouin. 3 Portraits
- Andrew Atherton (1975-), Gymnast. 1 Portrait
- Charles Atherton. 1 Portrait
- Effie Atherton (Effie Landau) (1907-2009), Actress; wife of Leslie L. Landau. 1 Portrait
- John Atherton (1598-1640), Irish bishop. 1 Portrait
- Kevin Atherton (1975-), Gymnast. 1 Portrait
- Mike Atherton (1968-), Cricketer. 1 Portrait
- T.R. Atherton, Colonel. 3 Portraits
- Sir William Atherton (1806-1864), Lawyer and politician. 1 Portrait
- Diana Athill (1917-2019), Writer and editor. 2 Portraits
- Godard van Reede-Ginckel, 1st Earl of Athlone (1644-1703), General. 12 Portraits
- James Herbert Gustavus Meredyth Somerville, 2nd Baron Athlumney (1865-1929), Army officer; Assistant Provost Marshall of London. 6 Portraits
- Lady Amelia-Anna-Sophia (née Stanley), Countess of Athol, Wife of 2nd Earl and 1st Marquis of Athol; daughter of 7th Earl of Derby. 1 Portrait
- James Murray, 2nd Duke of Atholl (1690-1764), Privy Councillor and politician; MP of Perthshire. 1 Portrait
- John Murray, 4th Duke of Atholl (1755-1830). 3 Portraits
- George Augustus Frederick John Murray, 6th Duke of Atholl (1814-1864), Landowner. 2 Portraits
- Anne, Duchess of Atholl (1814-1897), Wife of 6th Duke of Atholl. 4 Portraits
- John James Hugh Henry Stewart-Murray, 7th Duke of Atholl (1840-1917), Landowner. 4 Portraits
- Louisa (née Montcrieffe), Duchess of Atholl (1844-1902), Wife of 7th Duke Atholl; daughter of Sir Thomas Moncreiffe of that Ilk, 7th Baronet. 1 Portrait
- John George Stewart-Murray, 8th Duke of Atholl (1871-1942), Soldier and politician; MP for Perthshire West. 6 Portraits
- Katharine Marjory Stewart-Murray (née Ramsay), Duchess of Atholl (1874-1960), Public servant; wife of 8th Duke of Atholl; daughter of Sir James Henry Ramsay. 7 Portraits
- George Iain Murray, 10th Duke of Atholl (1931-1996), Landowner; Scottish peer. 2 Portraits
- John Murray, 1st Marquess of Atholl (1631-1703), Hereditary Sheriff of Fife, Captain General of the Royal Company of Archers. 1 Portrait
- Hugh Graham, 1st Baron Atholstan (1848-1938), Newspaper proprietor. 4 Portraits
- Annie Beekman Atholstan (née Hamilton), Lady Atholstan, Wife of 1st Baron Atholstan; daughter of Edward Hamilton. 3 Portraits
- Georgia Atienza, Assistant Curator, Photographs, National Portrait Gallery. 2 Portraits
- Sir Michael Francis Atiyah (1929-), Mathematician; Director of the Isaac Newton Institute for Mathematical Sciences, University of Cambridge. 3 Portraits
- Sir Albert Reuben Atkey (1867-1947), Politician; MP for Nottingham Central. 1 Portrait
- Edward Atkins (1818-1883), Actor. 1 Portrait
- Dame Eileen June Atkins (1934-), Actress. 1 Portrait
- G. M. Atkins (active 1924). 1 Portrait
- Sir Hedley John Barnard Atkins (1905-1983), Professor of Surgery. 1 Portrait
- Sir Ivor Algernon Atkins (1869-1953), Organist and choirmaster. 5 Portraits
- Sir John Atkins (1875-1963), Deputy Director of Army Medical Services; physician-in-ordinary to Duke of Connaught. 5 Portraits
- Will Atkins, Singer. 1 Portrait
- William Atkins (active 17th century), Empiric. 4 Portraits
- William Ringrose Gelston Atkins (1884-1959), Professor of Chemistry. 4 Portraits
- Henry Atkins-Bowyer (1805-1871), Lieutenant-Colonel, 1st Oxford University Rifle Volunteers. 2 Portraits
- John Atkinson, Baron Atkinson (1844-1932), Judge, politician and life peer. 1 Portrait
- Sir Arthur Joseph Atkinson (1864-1959), Major. 5 Portraits
- Christopher Atkinson (circa 1738-1819), Politician and merchant. 1 Portrait
- Conrad Atkinson (1940-), Artist and teacher. 0 Portraits
- Sir Cyril Atkinson (1874-1967), Politician and Judge of High Court of Justice. 8 Portraits
- David Anthony Atkinson (1940-2012), Politician; MP for Bournemouth East. 6 Portraits
- Sir Edward Hale Tindal Atkinson (1878-1957), Lawyer. 6 Portraits
- Edward Leicester Atkinson (1882-1929), Surgeon; member of British Antarctic Expedition, 1910-1913. 2 Portraits
- Sir Edwin Henry de Vere Atkinson (1867-1947), Lieutenant-General. 1 Portrait
- Sir Fenton Atkinson (1906-1980), Lord Justice of Appeal. 1 Portrait
- George Dixon Atkinson (later Atkinson-Clark) (1836-1921), Barrister and county councillor. 2 Portraits
- Helen Georgina Atkinson (née Brown) (1856-1927), Third wife of John Christopher Atkinson; daughter of Douglas Brown. 1 Portrait
- James Atkinson (1780-1852), Army surgeon and Oriental scholar. 1 Portrait
- James Henry Atkinson (died 1916), Actor. 1 Portrait
- John Atkinson (1937-), Gymnastic consultant. 1 Portrait
- Sir John Nathaniel Atkinson (1857-1931), Member Executive Council, Madras. 3 Portraits
- Sir Leonard Henry Atkinson (1910-1990), Major-General and Chairman of Engieering companies. 2 Portraits
- Miles Atkinson (1741-1811), Vicar of Kippax and Minister of St Pauls, Leeds. 2 Portraits
- Norman Atkinson (1923-2013), Labour Politician. 2 Portraits
- Paul Ashley Warren Atkinson (1946-2004), Musician; member of The Zombies. 1 Portrait
- Richard Atkinson (1738-1785), Merchant. 1 Portrait
- Rowan Sebastian Atkinson (1955-), Actor and writer. 4 Portraits
- R.B. Atkinson (active 1923). 1 Portrait
- Thomas Atkinson (1759-1838), Builder and Alderman of Salisbury. 1 Portrait
- Thomas Atkinson (1807-1881), Bishop of North Carolina. 3 Portraits
- William Christopher Atkinson (1902-1992), Professor of Hispanic studies. 7 Portraits
- Sir William Nicholas Atkinson (1850-1930), Divisional Inspector of Mines. 2 Portraits
- Sir George Atkinson-Wallis, Naval officer. 1 Portrait
- Alice (née Mort), Lady Atkinson-Willes (1856-1938), Wife of Sir George Lambart Atkinson-Willes; daughter of Thomas Sutcliffe Mort. 4 Portraits
- Richard Atkyns (1615-1677), Army officer and writer on printing. 1 Portrait
- James Atlay (1817-1894), Bishop of Hereford. 5 Portraits
- Daniel Deng Atong (1912-1976), Assistant Bishop in Sudan. 1 Portrait
- Nana Sir Ofori Atta (1881-1943), Member of Executive Council of Gold Coast (Ghana). 9 Portraits
- Lady Atta, Wife of Nana Sir Ofori Atta. 2 Portraits
- Naim Ibrahim Attallah (1931-), Book publisher, magazine proprietor and writer, producer of plays, films and television documentaries. 2 Portraits
- Richard Samuel Attenborough, Baron Attenborough (1923-2014), Actor, producer and director; brother of Sir David Attenborough. 9 Portraits
- Sir David Attenborough (1926-), Naturalist and broadcaster; brother of Baron Attenborough. 8 Portraits
- Sheila (née Sim), Lady Attenborough (1922-2016), Actress; wife of Sir Richard Attenborough. 5 Portraits
- Francis Atterbury (1662-1732), Bishop of Rochester. 16 Portraits
- Sir Frederick Atterbury (1853-1919), Barrister and accountant. 5 Portraits
- Humphrey Cooper Attewell (1894-1972), Labour politician; MP for Harborough. 7 Portraits
- John Attfield (1835-1911), Pharmacologist; chemistry professor. 1 Portrait
- Clement Richard Attlee, 1st Earl Attlee (1883-1967), Prime Minister. 47 Portraits
- Violet Helen (née Millar), Countess Attlee (1895-1964), British Red Cross commandant; wife of 1st Earl Attlee. 13 Portraits
- Christopher Sebastian Bravery Attlee (1915-1987), Prospective Labour candidate; nephew of 1st Earl Attlee. 4 Portraits
- Clarinda Campbell Attlee (née Allen) (1915-1977), Wife of Christopher Attlee; nephew of Clement Attlee. 2 Portraits
- C.M. Attlee, Professor. 6 Portraits
- Mabel Lucie Attwell (1879-1964), Illustrator. 1 Portrait
- Matthias Attwood (1779-1851), Banker and Conservative politician; MP for Whitehaven. 1 Portrait
- Thomas Attwood (1783-1856), Political reformer. 3 Portraits
- Harriett Caroline Attye (circa 1812-1901), Landowner; daughter of Robert Middleton Attye. 1 Portrait
- Hayley Atwell (1982-), Actress. 1 Portrait
- Winifred Atwell (1914-1983), Pianist. 5 Portraits
- Edward Robert Atwill (1840-1911), Bishop of West Missouri. 1 Portrait
- Lionel Atwill (1885-1946), Actor. 2 Portraits
- Julius Walter Atwood (1857-1945), Bishop of Arizona. 1 Portrait
- Thomas Stephen Atwood (1759-1826), Rector of Buckworth and Morborne, Hants, and minister of Hammersmith. 2 Portraits
- Daniel François Esprit Auber (1782-1871), Composer. 3 Portraits
- Philippe Marie Joseph Raymond Auboyneau (1899-1961), French naval commander and admiral. 12 Portraits
- John Aubrey (1626-1697), Antiquary. 3 Portraits
- Sir John Aubrey, 6th Bt (1740-1826), Conservative politician; MP for Wallingford, Aylesbury, Buckinghamshire, Clitheroe, Steyning, Horsham and Aldeborough. 2 Portraits
- Melbourn Evans Aubrey (1885-1957), Baptist minister and ecumenist. 2 Portraits
- Sir Thomas Digby Aubrey, 7th Bt (1782-1856), Sheriff. 1 Portrait
- William Aubrey (1529-1595), Master in Chancery. 4 Portraits
- Sir Henry Aubrey-Fletcher, 4th Bt (1835-1910), Politician and army officer. 2 Portraits
- Thomas Ralph Auchincloss (1923-2005), Company director. 1 Portrait
- Sir Claude Auchinleck (1884-1981), Field Marshal. 24 Portraits
- Colonel Arthur Auchmuty (active 1792). 1 Portrait
- George Eden, Earl of Auckland (1784-1849), Governor-General of India. 8 Portraits
- William Eden, 1st Baron Auckland (1744-1814), Statesman. 8 Portraits
- Robert John Eden, 3rd Baron Auckland (1799-1870), Bishop of Bath and Wells. 7 Portraits
- Mary (née Hurt), Lady Auckland (1807-1872), Wife of 3rd Baron Auckland; daughter of Francis Edward Hurt. 1 Portrait
- William Morton Eden, 5th Baron Auckland (1859-1917), Army officer. 1 Portrait
- Frederick Colvin George Eden, 6th Baron Auckland (1895-1941), Assistant to Air AttachT, Paris. 1 Portrait
- Bernard Auden (1900-1978), Farmer. 1 Portrait
- John Bicknell Auden (1903-1991), Geologist and explorer; brother of W.H. Auden. 2 Portraits
- Wystan Hugh ('W.H.') Auden (1907-1973), Poet. 43 Portraits
- Thomas Audley, Baron Audley of Walden (1487 or 1488-1544), Lord Chancellor and Speaker of the House of Commons. 3 Portraits
- Thomas Percy Henry Touchet Tuchet-Jesson, 23rd Baron Audley (1913-1963). 7 Portraits
- Lucy Audley (née James) (1705-1774), Wife of Thomas Audley. 2 Portraits
- Maxine Audley (1923-1992), Actress. 1 Portrait
- John James Audubon (1785-1851), American ornithologist, author and artist. 1 Portrait
- James Audus (1781-1867), Amateur architect and philanthropist. 1 Portrait
- Frank Auerbach (1931-), Painter. 25 Portraits
- Jake Auerbach (1958-), Film director; son of Frank Auerbach. 1 Portrait
- Julia Auerbach (née Wolstenholme), Wife of Frank Auerbach. 3 Portraits
- Israel Antoine Aufrere (1667-1758), Minister of the French Church in London. 1 Portrait
- Pearl Aufrere, Actress. 10 Portraits
- Adrienne Augarde (1882-1913), Actress; daughter of Frank Augarde. 28 Portraits
- Amy Augarde (1868-1959), Actress. 1 Portrait
- Brian Auger (1939-), Musician. 2 Portraits
- (Guillaume Victor) Émile Augier (1820-1889), Dramatist. 2 Portraits
- Roy August, Dancer. 6 Portraits
- Augusta of Saxe-Gotha, Princess of Wales (1719-1772), Mother of George III. 15 Portraits
- Princess Augusta Charlotte, Duchess of Brunswick-Wolfenbüttell (1737-1813), Daughter of Frederick Prince of Wales, eldest sister of George III. 11 Portraits
- Princess Augusta Wilhelmina Louisa, Duchess of Cambridge (1797-1889), Wife of Prince Adolphus Frederick, 1st Duke of Cambridge. 20 Portraits
- Princess Augusta Katherine Saxe-Weimar (1827-1904), Wife of Prince Edward of Saxe-Weimar; daughter of 5th Duke of Richmond. 4 Portraits
- Augusta (née Bailey), Lady Curre (died 1956), Head of the Curre Hunt; wife of Sir Edward Curre, 1st Bt; daughter of Crawshay Bailey. 1 Portrait
- Princess Augusta Caroline, Grand Duchess of Mecklenburg-Strelitz (1822-1916), Daughter of Adolphus, Duke of Cambridge. 4 Portraits
- Augusta Victoria, Empress of Germany and Queen of Prussia (1858-1921), Consort of Wilhelm II, Emperor of Germany and King of Prussia. 11 Portraits
- St Augustine (died 604), Benedictine monk and Archbishop of Canterbury. 1 Portrait
- King Augustus III of Poland (1696-1763), Elector of Saxony, 1733-1763; King of Poland and Grand Duke of Lithuania, 1733-1763. 1 Portrait
- Herbert Ernest Augustus (1874-1945), Author and art critic; Editor of 'Apollo', 'Arts and Crafts' and 'The Woodcut'. 1 Portrait
- Augustus George, Margrave of Baden (1706-1771). 1 Portrait
- Prince August Wilhelm of Prussia (1887-1949), Son of Wilhelm II, Emperor of Germany and King of Prussia. 1 Portrait
- David Auld, 1 Portrait
- Fernanda Moreno de la Serna y Zuleta de Reales, Marquesa de Aulencia, Wife of César Pérez de Guzmán y Spreca, 1st Marqués de Aulencia. 4 Portraits
- Marie Ault (1870-1951), Actress. 1 Portrait
- Norman Ault (1880-1950), Author and artist. 5 Portraits
- Stacy Aumonier (1877-1928), Writer. 13 Portraits
- Aurélie (née Soubiran), Princess Ghika (1820-1904), French writer; wife of Prince Grigore Ghika of Wallachia. 1 Portrait
- Abraham Aurelius (1574 or 1576-1631), Reformed minister. 3 Portraits
- Marcus Aurelius (121-180), Roman emperor. 1 Portrait
- Georges Auric (1899-1983), Composer. 1 Portrait
- Cäcilia (Cilly) Edith Aussem (Contessa F.M. Della Corta Brae) (1909-1963), German tennis player. 1 Portrait
- Henry Morland Austen (died 1904), Clergyman. 1 Portrait
- Jane Austen (1775-1817), Novelist. 5 Portraits
- Primrose Austen, Fashion model. 1 Portrait
- Sarah (née Richardson), Lady Austen (died 1802), Wife of Sir Robert Austen, 7th Bt; friend of the poet William Cowper. 1 Portrait
- Edward Compton Austen-Leigh (1839-1916), Schoolmaster at Eton. 1 Portrait
- Richard Arthur Austen-Leigh (1872-1961), Printer and scholar. 1 Portrait
- Herbert Austin, Baron Austin (1866-1941), Motor manufacturer and philanthropist. 3 Portraits
- Alfred Austin (1835-1913), Poet Laureate. 10 Portraits
- Arthur Bramston Austin (1893-1967), Major-General. 9 Portraits
- Henry Wilfred ('Bunny') Austin (1906-2000), Tennis player and evangelist. 14 Portraits
- David Charles Henshaw Austin (1926-2018), Farmer and rose nurseryman. 1 Portrait
- Sir Francis Murray Austin (1881-1953), Vice-Admiral. 5 Portraits
- Frederic Austin (1872-1952), Singer and composer. 2 Portraits
- Sir Horatio Thomas Austin (1801-1865), Admiral and explorer. 1 Portrait
- Iris Austin. 3 Portraits
- Joan W. Austin. 1 Portrait
- John Gardiner Austin (1871-1956), Brigadier-General. 2 Portraits
- John Southgate Austin (1813-1890), Reverend. 1 Portrait
- Louis Frederic Austin (1852-1905), Drama critic and playwright. 1 Portrait
- Michael Austin (1855-1916), Politician; MP for Limerick West. 1 Portrait
- Sir Peter Murray Austin (1921-2005), Vice-Admiral. 2 Portraits
- Richard Austin (1903-1989), Conductor. 11 Portraits
- Robert Sargent Austin (1895-1973), Artist. 1 Portrait
- Sarah Austin (née Taylor) (1793-1867), Translator. 3 Portraits
- Sir Thomas Austin (1887-1976), Prime Minister of Kolhapur State. 1 Portrait
- William Austin (circa 1587-1634), Author. 3 Portraits
- William Austin (1627 or 1628-before 1677), Classical scholar and verse writer. 3 Portraits
- William Austin (1721-1820), Drawing master and engraver. 1 Portrait
- William Austin (1802-1857), Adopted son of Queen Caroline. 8 Portraits
- William Percy Austin (1807-1892), Lord Bishop of Guiana, Primate of West Indies and South America. 1 Portrait
- Archduchess Marie of Austria (1825-1915), Wife of Archduke Rainer. 1 Portrait
- John of Austria (1547-1578), Military leader and illegitimate son of King Charles I of Spain. 1 Portrait
- Maximilian Franz, Archduke of Austria (1756-1801), Archibishop Elector of Cologne; son of Francis I, Holy Roman Emperor. 2 Portraits
- Archduke Viktor of Austria (1842-1919), Archduke of Austria. 1 Portrait
- Isabella (née van Aerssen van Sommelsdijck), Countess of Auverquerque (1639-1720), Wife of Henry Nassau, Count of Auverquerque and Lord Overkirk. 2 Portraits
- Henry Nassau, Count of Auverquerque (1641-1708), Master of the Horse to William III. 2 Portraits
- Archibald James Leofric Temple Hamilton-Temple-Blackwood, Earl of Ava (1863-1900), Lieutenant and war correspondent; son of 1st Marquess of Dufferin and Ava. 1 Portrait
- John Lubbock, 1st Baron Avebury (1834-1913), Banker, scientist, writer and politician; MP for Maidstone and London University. 24 Portraits
- Alice Augusta Laurentia Lane (née Fox-Pitt-Rivers), Lady Avebury (circa 1862-1947), Second wife of 1st Baron Avebury; daughter of Augustus Fox-Pitt-Rivers. 7 Portraits
- John Lubbock, 3rd Baron Avebury (1915-1971). 4 Portraits
- Eric Reginald Lubbock, 4th Baron Avebury (1928-2016), Human rights campaigner and Liberal politician; MP for Orpington. 2 Portraits
- Richard Avedon (1923-2004), Fashion photographer. 1 Portrait
- Gilbert John Heathcote, 1st Baron Aveland (1795-1867), Politician; MP for Boston, Lincolnshire South and Rutland. 2 Portraits
- Thomas William Baxter Aveling (1815-1884), Congregational minister. 1 Portrait
- William Richard Avens (1936-), Major. 1 Portrait
- Alfred Walter Averill (1865-1957), Primate of New Zealand. 1 Portrait
- Helen Mary Avery (née Reeves) (1873-1944), Wife of Leonard Avery; daughter of Thomas James Reeves. 1 Portrait
- John Avery (1807-1855), Surgeon. 1 Portrait
- Lizzie Avery, Actress, dancer and singer. 1 Portrait
- Wilfred Avery (1926-2016), Artist. 1 Portrait
- Sir Francis Avery Jones (1910-1998), Physician and gastroenterologist. 1 Portrait
- Denis Avey (1919-2015), Author and soldier. 1 Portrait
- Avicenna (circa 980-1037), Physician, philosopher and a scientist. 1 Portrait
- Alexander Nicolas Avierino (1838-1914), Merchant. 2 Portraits
- Cleopatra Avierino (née Ralli) (1843-1891), Wife of Alexander Nicolas Avierino; daughter of Antonio Michael Ralli. 1 Portrait
- Mademoiselle Avigliana (active 1877-1885), Opera singer. 1 Portrait
- Arsène Avignon (active 1930s), Maitre-chef at the Ritz, Piccadilly. 1 Portrait
- Rona Yakovlevna Avinezar, Translator; wife of Tigran Petrosian. 1 Portrait
- Juliette Avis, Education Officer, National Portrait Gallery. 1 Portrait
- (Robert) Anthony Eden, 1st Earl of Avon (1897-1977), Prime Minister. 42 Portraits
- Clarissa Eden (née Spencer-Churchill), Countess of Avon (1920-), Second wife of 1st Earl of Avon; daughter of John Spencer-Churchill and Lady Gwendoline Spencer-Churchill. 4 Portraits
- Ian Hamilton Shearer, Lord Avonside (1914-1996), Lawyer and judge. 1 Portrait
- Janet Sutherland (née Murray), Lady Avonside (1917-2008), Scottish Governor of the BBC; wife of Ian Shearer, Lord Avonside. 9 Portraits
- Sir Horace Edmund Avory (1851-1935), Judge. 5 Portraits
- Mick Avory (1944-), Musician; drummer for The Kinks. 2 Portraits
- Edward Raymond ('Ted') Avory (1909-), Tennis player. 2 Portraits
- Stanley Stephen Awbery (1888-1969), Politician and Justice of the Peace. 6 Portraits
- A. Awdry, Royal Engineers Lieutenant. 1 Portrait
- Christopher Awdry (1940-), Author; son of Wilbert Vere ('W.V.') Awdry. 1 Portrait
- Wilbert Vere ('W.V.') Awdry (1911-1997), Clergyman; author of 'Thomas the Tank Engine' series. 1 Portrait
- William Awdry (1842-1910), Bishop of South Tokyo. 2 Portraits
- Hannah Idowu Dideolu Awolowo (née Adelana) (1918-2015), Public servant; wife of Obafemi Awolowo. 11 Portraits
- Obafemi Awolowo (1909-1987), Nigerian politician, nationalist and writer. 13 Portraits
- David Oyewole Awosika (active 1950s), Assistant Bishop of Ondo-Benin. 1 Portrait
- Prince Axel of Denmark (1888-1964), Foreign dignitary; cousin of King George V. 3 Portraits
- Daniel Axtell (1622-1660), Captain of the Parliamentary Guard and regicide. 1 Portrait
- Henry Stuart ('Harry') Axton (1923-2002), Businessman; Chairman of Brixton Estate. 2 Portraits
- Sir Alan Ayckbourn (1939-), Playwright; Artistic Director of the Stephen Joseph Theatre, Scarborough. 4 Portraits
- Marcella Araminta Victoria ('Ella') (née Ross), Countess of Ayelsford (died 1930), Second wife of 8th Earl of Aylesford. 4 Portraits
- Sir Alfred Jules Ayer (1910-1989), Philosopher. 13 Portraits
- Charles Arthur William Aylen (1882-1972), Bishop of St Helena. 1 Portrait
- Walter Henry Ayles (1879-1953), Conscientious objector and Labour politician; MP for Bristol North, Southall and Hayes and Harlington. 9 Portraits
- Sir Thomas Aylesbury, Bt (1576-1657), Patron of mathematical learning. 1 Portrait
- Heneage Finch, 1st Earl of Aylesford (1647?-1719), Lord Chancellor. 11 Portraits
- Louisa (née Thynne), Countess of Aylesford (1760-1832), Wife of 4th Earl of Aylesford; daughter of 1st Marquess of Bath. 3 Portraits
- Heneage Finch, 5th Earl of Aylesford (1786-1859). 2 Portraits
- Charles Wightwick Finch, 8th Earl of Aylesford (1851-1924), Peer. 1 Portrait
- Charles Ian Finch-Knightley, 11th Earl Aylesford (1918-2008), Lord Lieutenant of the West-Midlands. 2 Portraits
- Herbert William ('Bert') Bowden, Baron Aylestone (1905-1994), Politician; MP for Leicester South. 11 Portraits
- Robert Aylett (1583-1655?), Religious poet. 5 Portraits
- Sir John Ayliffe (Aylef) (circa 1490-1556), Surgeon to King Henry VIII. 1 Portrait
- Frank Ayling (active 1911). 1 Portrait
- Joan E. Ayling. 1 Portrait
- Richard Cecil Ayling (1916-1995), Air Vice-Marshal. 1 Portrait
- Matthew Aylmer, 5th Baron Aylmer (1775-1850), Army officer; Governor General of British North America. 2 Portraits
- Sir Felix Edward Aylmer (1889-1979), Actor. 3 Portraits
- Sir Fenton John Aylmer (1862-1935), Lieutenant-General. 1 Portrait
- Henry Gerald Aylmer (1896-1978), Major. 3 Portraits
- John Aylmer (1521-1594), Bishop of London. 4 Portraits
- Mary Aylmer (active 2011), Editorial Assistant, Private Eye. 2 Portraits
- Nancy Aylmer (née Hollick) (died 1991), Wife of Henry Aylmer; daughter of Drake Hollick. 4 Portraits
- Madame Aylmer (active 1920s). 3 Portraits
- Madelaine Hope Aylward (née Woolley), Wife of Anthony Case Aylward. 2 Portraits
- Roger Aylward, Administration and Establishment Officer, National Portrait Gallery. 6 Portraits
- Sir George Aylwen, 1st Bt (1880-1967), Lord Mayor of London. 1 Portrait
- Jean Aylwin (1885-1964), Actress and singer. 2 Portraits
- Allan Aynesworth (Edward Abbot-Anderson) (1864-1959), Actor. 5 Portraits
- Sir Amos Lowrey Ayre (1885-1952), Shipbuilder. 6 Portraits
- Sir Wilfred Ayre (1890-1971), Naval architect. 1 Portrait
- Gillian Ayres (1930-2018), Painter, mural artist and teacher. 5 Portraits
- John Ayres (active 1680-1700), Writing Master. 5 Portraits
- Ruby Mildred Ayres (1883-1955), Romantic novelist. 15 Portraits
- Acton Smee Ayrton (1816-1886), Barrister and Liberal politician; MP for Tower Hamlets. 7 Portraits
- Michael Ayrton (1921-1975), Artist. 8 Portraits
- William Edward Ayrton (1847-1908), Electrical engineer and physicist. 1 Portrait
- Barbara Ayrton-Gould (1888-1950), Labour politician; MP for Hendon North. 5 Portraits
- Francis Ayscough (1700-1763), Dean of Bristol; tutor to George III. 1 Portrait
- Samuel Ayscough (1745-1804), Librarian and index maker. 1 Portrait
- Sir George Ayscue (circa 1615-1672), Naval officer. 6 Portraits
- Chris Ayton, Scaffolder. 1 Portrait
- Richard Ayton (1786-1823), Dramatist and miscellaneous writer. 2 Portraits
- Sir Robert Ayton (1570-1638), Poet and Courtier. 1 Portrait
- Miss Ayton (active 1860). 1 Portrait
- James Aytoun (1797-1881), Advocate and manufacturer. 2 Portraits
- James Aytoun (1830-1889), Major, 7th Hussars. 1 Portrait
- William Edmondstoune Aytoun (1813-1865), Poet. 3 Portraits
- Vedanayakam Samuel Azariah (1874-1945), First Indian bishop of an Anglican diocese. 6 Portraits
- Victor Emmanuel Taparelli, Marchesi d'Azeglio (1816-1890), Piedmontese ambassador. 5 Portraits
- Ignatius Azevedo (1527-1570), Jesuit Missionary and Martyr. 1 Portrait
- Abdul Aziz (1830-1876), Sultan of Turkey. 7 Portraits
- Sir Khan Bahadur Azizul Huque (1892-1947), High Commissioner for India in UK. 5 Portraits
- Shin Azumi (1965-), Furniture and product designer. 1 Portrait
- Tomoko Azumi (1966-), Furniture and product designer. 1 Portrait