- Sep 11 Louis Henri Boussenard, French novelist (b. 1847)
- Sep 11 William R. Boggs, American Brigadier General (Confederate Army) and chief of engineers, dies at 82
- Sep 16 Edward Whymper, English mountaineer 1st to climb Matterhorn (1865), dies at 71
- Sep 18 Peter Stolypin, 3rd Prime Minister of Russia (1906-11), shot and murdered at the Kiev Opera House aged 49
- Sep 21 Arab Pasha, "al-Misri" [Pasha Ahmad Arab), Egyptian minister, dies
- Sep 27 Auguste Michel-Lévy, French geologist and petrologist, dies at 67
- Sep 28 Louis Pincoffs, Dutch businessman and politician (1st-Chamber), dies
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning