|Ab urbe condita||2292|
|Balinese saka calendar||1460–1461|
|English Regnal year||30 Hen. 8 – 31 Hen. 8|
|Chinese calendar||戊戌年 (Earth Dog)|
4235 or 4175
— to —
己亥年 (Earth Pig)
4236 or 4176
|- Vikram Samvat||1595–1596|
|- Shaka Samvat||1460–1461|
|- Kali Yuga||4639–4640|
|Japanese calendar||Tenbun 8|
|Minguo calendar||373 before ROC|
|Thai solar calendar||2081–2082|
1665 or 1284 or 512
— to —
1666 or 1285 or 513
|Wikimedia Commons has media related to 1539.|
- January – Toungoo–Hanthawaddy War – Battle of Naungyo, Burma: The Toungoos decisively defeat the Hanthawaddys.
- January 12 – Charles V, Holy Roman Emperor (and Charles I of Spain) and Francis I of France sign the Treaty of Toledo, agreeing to make no further alliances with England. The treaty comes after Henry VIII of England's split with Rome and Pope Paul III.
- January 14 – Spain annexes Cuba.
- February 9 – The first horse race is held at Chester Racecourse, the oldest in use in England.
- March – Canterbury Cathedral surrenders, and reverts to its previous status of 'a college of secular canons'.
- May 30 – Hernando de Soto lands at Tampa Bay, Florida with 600 soldiers, with the goal to find gold. He also introduces pigs into North America.
- May – The Six Articles, an Act of the Parliament of England, reaffirms certain Catholic principles in Henry VIII's Church of England.
- 26 June – Sher Shah Suri defeats the Mughal emperor, Humayun at Battle of Chausa in modern-day Buxar, India. Sher Shah went on to form the Sur Empire and take control of nearly all Mughal territory.
- August 15 – King Francis I of France issues the Ordinance of Villers-Cotterêt, that places the whole of France under the jurisdiction of the royal law courts, and makes French the language of those courts, and the official language of legal discourse.
- September 7 – Guru Angad Dev becomes the second Guru of the Sikhs.
- October 4 – Henry VIII contracts to marry Anne of Cleves.
- November 1 – Joachim II Hector introduces Lutheranism in the Margraviate of Brandenburg, becoming the second Prince-Elector after the Prince-Elector of Saxony to turn Protestant.
- Protestant Reformation
- Lutheranism is forcibly introduced into Iceland, despite the opposition of Bishop Jón Arason.
- Beaulieu Abbey, Bolton Abbey, Colchester Abbey, Newstead Abbey, St Albans Abbey, St Mary's Abbey, York and Hartland Abbey (the last) fall prey to the Dissolution of the Monasteries in England.
- The first edition of the Calvinist Genevan Psalter is published.
- In Henan province, China, a severe drought with swarms of locusts is made worse, by a major epidemic outbreak of the plague.
- The first printing press in North America is set up in Mexico City.
- Teseo Ambrogio's Introductio in Chaldaicam lingua, Syriaca atq Armenica, & dece alias linguas, published in Pavia, introduces several Middle Eastern languages to western Europe for the first time.
- January 28 – Nicolò Donato, Doge of Venice (d. 1618)
- February 13 – Elisabeth of Hesse, Electress Palatine by marriage (1576-1582) (d. 1582)
- February 23
- February 27 – Franciscus Raphelengius, Dutch printer (d. 1597)
- March 5 – Christoph Pezel, German theologian (d. 1604)
- March 18 – Maria of Nassau, Countess of Nassau (d. 1599)
- April 5 – George Frederick, Margrave of Brandenburg-Ansbach (d. 1603)
- April 6 – Amalia of Neuenahr, German noble (d. 1602)
- April 7 – Tobias Stimmer, Swiss artist (d. 1584)
- April 7 – Strange Jørgenssøn, Norwegian businessman (d. 1610)
- April 30 – Archduchess Barbara of Austria, Austrian archduchess (d. 1572)
- May 22 – Edward Seymour, 1st Earl of Hertford (d. 1621)
- May 29 – Thomas Pounde, English Jesuit lay brother (d. 1613)
- June 6 – Catherine Vasa, Regent of East Frisia (1599-1610) (d. 1610)
- June 13 – Jost Amman, Swiss printmaker (d. 1591)
- June 23 – William Darrell of Littlecote, English politician (d. 1589)
- July 4 – Louis VI, Elector Palatine (d. 1583)
- September 18 – Louis Gonzaga, Duke of Nevers, Italian-French dignitary and diplomat (d. 1595)
- October 1 – Peter Vok, Czech noble (d. 1611)
- November 1 – Pierre Pithou, French lawyer and scholar (d. 1596)
- December 5 – Fausto Paolo Sozzini, Italian theologian (d. 1604)
- December 20 – Paulus Melissus, German composer (d. 1602)
- December 31 – John Radcliffe, English politician (d. 1568)
- date unknown
- January 24 – Anneke Esaiasdochter, Dutch Anabaptist writer (b. 1509)
- February 6 – John III, Duke of Cleves (b. 1491)
- February 13 – Isabella d'Este, Marquise of Mantua (b. 1474)
- March 5 – Nuno da Cunha, Portuguese governor in India (b. 1487)
- March 12 – Thomas Boleyn, 1st Earl of Wiltshire, English diplomat and politician (b.1477)
- March 19 – Lord Edmund Howard, English nobleman (b. c. 1478))
- April 17 – George, Duke of Saxony (b. 1471)
- April 19 – Katarzyna Weiglowa, Jewish martyr (b. 1460)
- April 30 – John Bourchier, 1st Earl of Bath, English noble (b. 1470)
- May 1 – Isabella of Portugal, Holy Roman Empress (b. 1503)
- May 7 – Ottaviano Petrucci, Italian printer (b. 1466)
- May 7 or September 22 – Guru Nanak, founder of Sikhism (b. 1469)
- June 20 – Philip III, Count of Waldeck-Eisenberg (1524–1539) (b. 1486)
- July 5 – St Anthony Maria Zaccaria, Italian saint (b. 1502)
- July 9 – Adrian Fortescue, English Roman Catholic martyr (b. 1476)
- August – Vannoccio Biringuccio, Italian metallurgist (b. 1480)
- September 8 – John Stokesley, English prelate (b. 1475)
- November 14 – Hugh Cook Faringdon, English Abbot of Reading
- December 12 – Bartolomeo degli Organi, Italian musician (b. 1474)
- December 20 – Johannes Lupi, Flemish composer (b. c. 1506)
- date unknown
- Everett, Jason M., ed. (2006). "1539". The People's Chronology. Thomson Gale.
- Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. pp. 210–215. ISBN 0-304-35730-8.
- "The Press in Colonial America" (PDF). A Publisher’s History of American Magazines — Background and Beginnings. Retrieved August 22, 2013.
- Frieda, Leonie (2013). The deadly sisterhood : a story of women, power and intrigue in the Italian Renaissance, 1427-1527 (Paperback edition. ed.). London: Phoenix. p. 358. ISBN 978-0-7538-2844-1.