- Jul 5 Charles Cagniard de la Tour, French physicist (b. 1777)
- Jul 8 Oscar I [Joseph François Oscar Bernadotte], French-Swedish noble, through adoption (King of Sweden and Norway, 1844-59), dies at 60
- Jul 13 Rufus Choate, American lawyer (Hall of Fame), dies at 59
- Jul 17 Stephanie of Hohenzollern-Sigmaringen, German-born Queen of Portugal (1858-59), dies of diphtheria at 22
- Jul 20 Hans E. Schack, Danish politician and writer (Phantasterne - Fantasy), dies at 39
- Jul 23 Marceline Desbordes-Valmore, French poet (Bouquets et prières), dies at 73
- Jul 29 Auguste Mathieu Panseron, French composer, dies at 63
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning