- Sep 3 Eugene Pallette, American actor (The Adventures of Robin Hood, The Mark of Zorro), dies at 65
- Sep 5 Eugen Schiffer, German lawyer and liberal politician, dies at 94
- Sep 7 Bud Fisher, American cartoonist (Mutt and Jeff), dies at 69
- Sep 9 Alfred Gradstein, Polish composer, dies at 49
- Sep 10 Peter Anders, German opera singer, dies at 46
- Sep 11 Licinio Refice, Italian priest and composer (Cecilia), dies at 69
- Sep 19 Tibor Harsányi, Hungarian pianist, composer, and conductor who settled Paris, France, dies at 56
- Sep 21 Kōkichi Mikimoto, Japanese inventor and entrepreneur (cultured pearls), dies at 96
- Sep 24 Edward Pilgrim, British homeowner who committed suicide due to housing bureaucracy scandal, hangs himself at 53
- Sep 25 Eugenio d'Ors, Spanish Catalan essayist and philosopher, dies at 71
- Sep 26 Ellen Roosevelt, American tennis player (US Nat C'ship 1890), dies at 86
- Sep 27 Maximilian von Weichs, German aristocrat and army officer (WWII Field Marshal; WWI Cavalryman), dies at 72
- Sep 28 Bert Lytell, American actor (One Man's Family), dies at 69
- Sep 28 George Harrison Shull, American plant geneticist, dies at 80
- Sep 29 William John Gruffydd, Welsh poet and scholar, dies at 73
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning