This article is about the year 1763.
Year 1763 (MDCCLXIII) was a common year starting on Saturday (link will display the full calendar) of the Gregorian calendar and a common year starting on Wednesday of the 11-day slower Julian calendar.
- July 7 – The British East India Company declare Mir Qasim, the Nawab of Bengal, to be deposed.
- August 2 – Mir Qasim routed at Odwa Nala. He flees to Patna, where he massacres the English garrison, but is subsequently defeated at Katwa, Murshidabad, Giria, Sooty, Udayanala and Munger.
- August 5 – Pontiac's War – Battle of Bushy Run: British forces led by Henry Bouquet defeat Chief Pontiac's Indians at Bushy Run in the Pennsylvania backcountry.
- August – Fire in Smyrna, Turkey, destroys 2,600 houses.
- September 1 – Catherine II of Russia endorses Ivan Betskoy's plans for a Foundling Home in Moscow.
- October 7 – The Royal Proclamation of 1763 is issued by George III of the United Kingdom, restricting westward expansion of British North America and stabilizing relations with indigenous peoples of the Americas.
- November 24 – Bayes' theorem is first announced.
- December 2 – Touro Synagogue, Newport, Rhode Island, dedicated; by the end of the 20th century this will be the oldest surviving synagogue in North America.
- December 14 – The Paxton Boys massacre six Conestoga Indians in their homes in Lancaster County, Pennsylvania When the 16 survivors are sheltered in the Lancaster workhouse (jail), the Paxton Boys ride into town and kill them as well, on December 27.
- January 8 – Edmond Charles Genêt, French ambassador to the United States during the French Revolution (d. 1834)
- January 24 – Louis Alexandre Andrault de Langeron, Russian general (d. 1831)
- January 26 – Jean-Baptiste Bernadotte, Marshal of France, King Charles XIV John of Sweden, and Charles III John of Norway (d. 1844)
- February 14 – Jean Victor Marie Moreau, French general (d. 1813)
- March 9 – William Cobbett, English journalist and author (d. 1835)
- March 13 – Guillaume-Marie-Anne Brune, Marshal of France (d. 1815)
- March 21 – Jean Paul, German writer (d. 1825)
- May 7 – Józef Antoni Poniatowski, Polish prince and Marshal of France (d. 1813)
- May 21 – Joseph Fouché, French statesman (d. 1820)
- June 20 – Theobald Wolfe Tone, Irish patriot (d. 1798)
- June 23 – Joséphine de Beauharnais, Empress of France (d. 1814)
- July 17 – John Jacob Astor, German-born entrepreneur (d. 1848)
- August 13 – Christoph Johann von Medem, German courtier (d. 1838)
- August 17 – Dmitry Senyavin, Russian admiral (d. 1831)
- December 25 – Claude Chappe, French telecommunication pioneer (d. 1805)
- December 28 – John Molson, Canadian entrepreneur (d. 1836)
- December 31 – Pierre-Charles Villeneuve, French admiral (d. 1806)
- Date unknown
- January 11 – Caspar Abel, German theologian, historian, and poet (b. 1676)
- January 22 – John Carteret, 2nd Earl Granville, English statesman (b. 1690)
- January 29 – Louis Racine, French poet (b. 1692)
- February 11 – William Shenstone, English poet (b. 1714)
- February 12 – Pierre de Marivaux, French writer (b. 1688)
- April 8 – Koca Ragıp Pasha, Ottoman (Turkish) Grand Vizier (b. 1698)
- May 3 – George Psalmanazar, British impostor (b. c. 1679)
- August 21 – Charles Wyndham, 2nd Earl of Egremont, British statesman (b. 1710)
- September 26 – John Byrom, English poet (b. 1692)
- October 5 – Augustus, Elector of Saxony, King of Poland and Grand Duke of Lithuania (b. 1696)
- October 28 – Heinrich von Brühl, German statesman (b. 1700)
- November 10 – Joseph Dupleix – French governor general at Pondichéry
- November 23 – Friedrich Graf von Seckendorf, German soldier (b. 1673)
- December 17 – Frederick Christian, Elector of Saxony (b. 1722)
- December 23 – Antoine François Prévost, writer (b. 1697)