- Feb 15 Henry Hunt, British politician, dies
- Mar 2 Francis II, Holy Roman Emperor (b. 1768)
- Mar 18 Christian Gunther von Bernstorff, Danish-Prussian statesman and diplomat, dies at 65
- Mar 20 Louis-Leopold Robert, French painter (b. 1794)
- Mar 25 Friederike Blum, writer, dies
- Apr 17 William Henry Ireland, forger (Shakespearean manuscripts), dies
- May 13 John Nash, British town planner/architect (Regent's Park), dies
- May 16 Felicia Dorothea Hemans, poet/hymn writer, dies
- Jun 8 Gian Domenico Romagnosi, Italian physicist (b. 1761)
- Jun 18 William Cobbett, English journalist and author, dies at 72
- Jun 24 Andreas Vokos Miaoulis, Greek admiral and politician, commander of Greek naval forces in Greek War of Independence (b. 1769)
John Marshall
Jul 6 John Marshall, 4th Chief Justice of the United States (1801-35), dies at 79
John Marshall
- Jul 28 Édouard Adolphe Casimir Joseph Mortier, French marshal (b. 1768)
- Aug 3 Wenzel Muller, composer, dies at 67
- Aug 9 Claus Nielsen Schali, Danish violinist and composer, dies at 78
- Aug 25 Ann Rutledge, said to be Abraham Lincoln's true love, dies at 22
- Sep 15 Sarah Knox Taylor, wife of Jefferson Davis (b. 1814)
- Sep 23 Vincenzo Bellini, Italian opera composer (Norma), dies at 33
- Oct 19 Henry Doeff, translator (Dutch-Japanese dictionary), dies at 57
- Oct 22 Willem G F Bentinck, earl/politician/organist, dies at 73
- Nov 6 Ignaz Schuster, Austrian composer, dies at 56
- Nov 16 Louis Angely, German comedic poet (Paris in Pommern), dies at 48
- Dec 5 August von Platen, German poet, dies at 39
- Dec 13 John Storm, American Revolutionary soldier (b. 1760)
- Dec 18 Johann Georg Anton Mederitsch-Gallus, composer, dies at 82
- Dec 29 Charles-Joseph Tolbecque, composer, dies at 29