1747 (MDCCXLVII) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1747th year of the Common Era (CE) and Anno Domini (AD) designations, the 747th year of the 2nd millennium, the 47th year of the 18th century, and the 8th year of the 1740s decade. As of the start of 1747, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
|Ab urbe condita||2500|
|Balinese saka calendar||1668–1669|
|British Regnal year||20 Geo. 2 – 21 Geo. 2|
|Chinese calendar||丙寅年 (Fire Tiger)|
4443 or 4383
— to —
丁卯年 (Fire Rabbit)
4444 or 4384
|- Vikram Samvat||1803–1804|
|- Shaka Samvat||1668–1669|
|- Kali Yuga||4847–4848|
|Japanese calendar||Enkyō 4|
|Julian calendar||Gregorian minus 11 days|
|Minguo calendar||165 before ROC|
|Thai solar calendar||2289–2290|
1873 or 1492 or 720
— to —
1874 or 1493 or 721
|Wikimedia Commons has media related to 1747.|
- January 31 – The first venereal diseases clinic opens at London Lock Hospital.
- February 11 – King George's War: A combined French and Indian force, commanded by Captain Nicolas Antoine II Coulon de Villiers, attacks and defeats British troops at Grand-Pré, Nova Scotia.
- April 9 – The Scottish Jacobite Lord Lovat is beheaded by axe on Tower Hill, London, for high treason (the last man to be executed in this way in Britain).
- May 14 – War of the Austrian Succession – First battle of Cape Finisterre: The British Navy defeats a French fleet.
- June 9 – Emperor Momozono ascends to the throne of Japan, succeeding Emperor Sakuramachi.
- June 24–October 14 – The English ships Dobbs galley and California, under Captains William Moore and Francis Smith, explore Hudson Bay, discovering there is no Northwest Passage by this route.
- July 2 – War of the Austrian Succession – Battle of Lauffeld: France defeats the combined armies of Hanover, Great Britain and the Netherlands.
- October 25 – War of the Austrian Succession – Second battle of Cape Finisterre: The British Navy again defeats a French fleet.
- November 9 – Rioters in Amsterdam demand governmental reform.
- November 17–19 – The Knowles Riot breaks out in Boston, Massachusetts, protesting impressment into the British Royal Navy, .
- November 22 – Prince William IV of Orange becomes stadtholder of all the United Provinces.
- James Lind's experiment begins to prove that citrus fruits prevent scurvy.
- War of the Austrian Succession: Spanish troops invade and occupy the coastal towns of Beaufort and Brunswick in the Royal Colony of North Carolina, during what becomes known as the Spanish Alarm. They are later driven out by the local militia.
- Samuel Johnson begins work on A Dictionary of the English Language in London.
- January 10 – Abraham-Louis Breguet, Swiss horologist, inventor (d. 1823)
- January 15 – John Aikin, English doctor and writer (d. 1822)
- January 19 – Johann Elert Bode, German astronomer (d. 1826)
- January 26 – Samuel Parr, English schoolmaster (d. 1825)
- February 19 – John "Walking" Stewart, English traveller, philosopher (d. 1822)
- February 21 – Eugenio Espejo, Ecuadorian scientist (d. 1795)
- February 28 – Justin Morgan, American horse breeder, composer (d. 1798)
- May 5 – Leopold II, Holy Roman Emperor (d. 1792)
- May 7 – Judith van Dorth, Dutch Orangist (d. 1799)
- June 23 – Michele Troja, Italian physician (d. 1827)
- July 2 – Rose Bertin, French fashion designer (d. 1813)
- July 6 – John Paul Jones, American naval captain (d. 1792)
- September 9 – Thomas Coke, first American Methodist Bishop (d. 1814)
- October 8 – Jean-François Rewbell, French politician (d. 1807)
- December 12 – Anna Seward, English writer (d. 1809)
- December 31 – Gottfried August Bürger, German poet (d. 1794)
- date unknown
- January 2 – Lord George Graham, Royal Navy officer and MP (b. 1715)
- January 16 – Barthold Heinrich Brockes, German poet (b. 1680)
- January 26 – Willem van Mieris, Dutch painter (b. 1662)
- March 2 – Margravine Sophie Charlotte of Brandenburg-Bayreuth, German noble (b. 1713)
- March 14 – Johann Matthias von der Schulenburg, German aristocrat and general (b. 1661)
- March 16 – Christian Augustus of Anhalt-Zerbst, father of Catherine II of Russia (b. 1690)
- March 23 – Claude Alexandre de Bonneval, French soldier (b. 1675)
- April 2 – Johann Jacob Dillenius, German botanist (b. 1684)
- April 3 – Francesco Solimena, Italian painter (b. 1657)
- April 7 – Leopold I, Prince of Anhalt-Dessau, Prussian field marshal (b. 1676)
- April 9 – Simon Fraser, 11th Lord Lovat, Scottish clan chief (b. c. 1667)
- April 14 – Jean-Frédéric Osterwald, Swiss Protestant pastor (b. 1663)
- May 9 – John Dalrymple, 2nd Earl of Stair, Scottish soldier and diplomat (b. 1673)
- May 28 – Luc de Clapiers, marquis de Vauvenargues, French writer (b. 1715)
- May 31 – Andrei Osterman, Russian statesman (b. 1686)
- June 8 – Alan Brodrick, 2nd Viscount Midleton, English cricketer (b. 1702)
- June 17 – Avdotya Chernysheva, Russian noble, lady in waiting (b. 1693)
- June 19
- July 9 – Giovanni Bononcini, Italian composer (b. 1670)
- October 9 – David Brainerd, American missionary (b. 1718)
- October 10 – John Potter, Archbishop of Canterbury (b. c. 1674)
- October 14 – Amaro Pargo, Spanish corsair (b. 1678)
- November 17 – Alain-René Lesage, French writer (b. 1668)
- December 2 – Vincent Bourne, English classical scholar (b. 1695)
- Van den Heuvel, Danielle (Spring 2012). "The Multiple Identities of Early Modern Dutch Fishwives". Signs. University of Chicago Press. 37 (3): 587–594. doi:10.1086/662705. JSTOR 10.1086/662705.
... in 1747 fishwives organized a large political demonstration in Amsterdam, and in 1748 the Amsterdam fish hawker Marretje Arents was one of the principal initiators of a tax riot in the city.