- Jan 7 Ramón Cuéllar y Altarriba, Spanish composer, dies at 55
- Jan 10 Adrien-Marie Legendre, French mathematician who worked on elliptic integrals, dies at 80
- Jan 10 António da Silva Leite, Portuguese composer, dies at 73
- Jan 12 Marie-Antoine Carême, French chef (b. 1784)
- Jan 14 Seraphim of Sarov, Russian Orthodox Saint, dies at 73
- Jan 15 Banastre Tarleton, British soldier and politician (Waxhaws Massacre), dies at 78
- Jan 16 James Ballantyne, Scottish printer and publisher of Walter Scott with the Ballantyne Press, dies at 61
- Jan 17 William Rush, American sculptor (Spirit of the Schuylkill), dies at 76
- Jan 19 (Louis Joseph) Ferdinand Hérold, French pianist, violinist, and composer of over twenty operas, dies from tuberculosis at 41
- Jan 23 Edward Pellew, 1st Viscount Exmouth, British admiral (b. 1757)
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning