Editing 1775 (section)

=== April ===
* [[April 4]] – [[René Charles de Maupeou]], French statesman (b. [[1688]])
* [[April 5]] – [[Simon Nikolaus Euseb von Montjoye-Hirsingen]], Prince Bishop of Basel (b. [[1693]])
* [[April 7]] – [[Sir Anthony Abdy, 5th Baronet]], 5th Abdy Baronet (b. [[1720]])
* [[April 10]]
** [[Jonas Haas]], German-born Danish engraver (b. [[1720]])
** [[Louis-Florent de Vallière]], Governor General of the French colony of Saint-Domingue, now Haiti (b. [[1721]])
* [[April 11]]
** [[Meletie Covaci]], Roman Catholic bishop (b. [[1707]])
** [[Roger Mostyn (priest)|Roger Mostyn]], English churchman, Canon of Windsor (b. [[1720]])
* [[April 12]]
** [[William Kerr, 4th Marquess of Lothian]], Scottish nobleman (b. [[1710]])
** [[Pierre Soubeyran]], Genevan-French engraver and copperplate engraver (b. [[1709]])
** [[William Vaughan (MP)|William Vaughan]], Welsh politician (b. [[1707]])
* [[April 14]] – [[Countess Palatine Ernestine of Sulzbach]], Landgravine and Carmelite nun (b. [[1697]])
* [[April 16]] – [[William Leyborne Leyborne]], governor of the Windward Islands (b. [[1744]])
* [[April 19]] – [[Isaac Davis (soldier)|Isaac Davis]], American gunsmith and militia officer (b. [[1745]])
* [[April 24]] – [[Jan Caspar Philips]], engraver from the Northern Netherlands (b. [[1690]])
* [[April 26]] – [[Josiah Quincy II]], American lawyer (b. [[1744]])
* [[April 27]] – [[Peter Boehler]], Moravian missionary (b. [[1712]])
* [[April 30]]
** [[Francesco Barsanti]], Italian flautist, oboist and composer (b. [[1690]])
** [[Peter Harrison (architect)|Peter Harrison]], English-born colonial American architect (b. [[1716]])