- Jan 4 Petronella Moens, Frisian author and feminist, dies at 80
- Jan 7 Franz Schoberlechner, Austrian composer, dies at 45
- Jan 9 William Hedley, British industrial engineer (b. 1773)
- Jan 11 Francis Scott Key, American lawyer, poet and composer of the lyrics to "Star Spangled Banner" dies at 63
- Feb 15 Theodoros Kolokotronis, Greek general and leader of the Greek War of Independence (1821-29), dies at 72
- Mar 16 Anton Reinhard Falck, Dutch statesman and diplomat (advisor to King William I), dies at 65
Guadalupe Victoria (1786-1843)
Mar 21 Mexican independence leader, general and 1st President of Mexico (1824-29), dies at 56
Samuel Morey (1762-1843)
Apr 17 American inventor of early internal combustion engines and a steamship pioneer, dies at 80
- Apr 24 George Macfarren, British playwright, dies at 54
- Apr 28 William Wallace, Scottish mathematician (rights of Wallace), dies at 74
- May 12 Charlotte von Kalb, German writer, dies at 81
- May 12 Johann Georg Lickl, Austrian organist, kapellmeister, and composer, dies at 74
- May 24 Sylvestre François Lacroix, French mathematician, dies at 78
Noah Webster (1758-1843)
May 28 American lexicographer (Webster's Dictionary), dies at 84
- Jun 6 Friedrich Hölderlin, German poet, dramatist, and philosopher, dies at 73
- Jun 22 Gabriele Prota, Italian composer, dies at 88
- Jul 2 Samuel Hahnemann, German physician, originator of homeopathy, dies at 88
- Jul 9 Washington Allston, American painter (pioneer of America's Romantic movement of landscape painting) and author, dies at 63
- Jul 16 Hubert Matthijs Adriaan Jan van Asch van Wijck, Dutch lawyer and politician (Mayor of Utrecht,1827-1839), dies at 68
- Jul 25 Charles Macintosh, Scottish chemist and inventor (b. 1766)
- Aug 10 Jakob F. Fries, German philosopher, dies at 69
- Sep 3 Cornelis Pieter Jacob Elout, Dutch military and President of West Sumatra, dies at 47
- Sep 11 Joseph Nicollet, French mathematician and explorer, died at 57
- Sep 19 Gaspard-Gustave Coriolis, French scientist, first described the Coriolis force, dies at 51
- Oct 10 Karl Theodor Toeschi, Italian-German composer and violinist, dies at 75
- Nov 10 John Trumbull, American painter (Declaration of Independence), dies at 87
- Nov 29 Marco Santucci, Italian maestro di cappella (S. Giovanni (Laterano), 1797–1808), and composer, dies at 81
- Dec 12 William I, King of Netherlands (1814-40), Prince of Orange, and Grand Duke of Luxembourg (1815-40), dies at 71
- Dec 14 John Claudius Loudon, Scottish horticulturist, dies at 60
- Dec 18 Thomas Graham, Lord Lynedoch, British Viceroy of India (b. 1748)
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning