Editing 1825 (section)

=== January–June ===
[[File:Antonio Salieri painted by Joseph Willibrord Mähler.jpg|thumb|right|110px|[[Antonio Salieri]]]]
[[File:Eleanor Anne Porden 2.jpg|thumb|right|110px|[[Eleanor Anne Porden]]]]
* [[January 4]] – [[Ferdinand I of the Two Sicilies]] (b. 1751)
* [[January 8]] – [[Eli Whitney]], American inventor (b. 1765)
* [[February 22]] – [[Eleanor Anne Porden]], English poet (b. 1795)
* [[February 24]] – [[Thomas Bowdler]], English physician (b. 1754)
* [[March 1]]
** [[John Brooks (governor)]], Massachusetts doctor, military officer, governor (b. 1752)
** [[John Haggin]], Indian fighter, one of the earliest settlers of Kentucky (b. 1753)
* [[March 4]] – [[Hercules Mulligan]], tailor, spy during the [[American Revolutionary War]] (b. 1740)
* [[March 6]] – [[Samuel Parr]], English schoolmaster (b. 1747)
* [[March 25]] – [[Antoine Fabre d'Olivet]], French writer (b. 1767)
* [[March 27]] – [[Alexander Lindsay, 6th Earl of Balcarres]], British Army general (b. 1752)
* [[April 23]] – [[Maler Müller|Friedrich Müller]], German painter, narrator, lyricist and dramatist (b. 1749)
* [[April 17]] – [[Henry Fuseli]], Swiss painter and writer (b. 1741)
* [[May 7]] – [[Antonio Salieri]], Italian composer (b. 1750)
* [[May 13]] – [[Charles Whitworth, 1st Earl Whitworth]], British diplomat (b. 1752)
* [[May 19]] – [[Claude Henri de Rouvroy, comte de Saint-Simon]], French politician (b. 1760)
* [[May 22]] – [[Laskarina Bouboulina]], Greek independence fighter, heroine (shot) (b. 1771)
* [[May 23]] – Ras [[Gugsa of Yejju]], Regent of the Emperor of Ethiopia
* [[June 11]] – [[Daniel D. Tompkins]], [[List of Vice Presidents of the United States|6th]] [[Vice President of the United States]] (b. 1774)
* [[June 14]] – [[Pierre Charles L'Enfant]], French architect (b. 1754)
* [[June 27]] – [[Domenico Vantini]], Italian painter