- Sep 1 Jean Canneel, Flemish sculptor, dies at 73
- Sep 3 Cruys Voorbergh [Ernest Pieter Coningh], Dutch actor and director (De vliegende Hollander, Flying Dutchman), dies from cardiac arrest at 64
- Sep 3 Frico Kafenda, Slovak composer, dies at 79
- Sep 4 Robert Schuman, Luxembourg-born French statesman and Prime Minister of France (1947-48), dies at 77
- Sep 6 Margarita Sierra, Spanish-American actress (Surfside 6 - "Cha Cha"), dies after heart surgery at 27
- Sep 9 Ernst Kantorowicz, German-American historian (Laudes regiae), dies at 68
- Sep 9 Jan Schouten, Dutch co-founder of Daily Trouw (illegal resistance newspaper WWII), dies at 80
- Sep 10 Eugène Baie, Belgian author (Sub rosa et sub umbra), dies at 89
- Sep 12 Ben Sealey, West Indian cricketer (one Test WI v England 1933), dies at 64
- Sep 12 Mervyn A. Ellison, British astronomer (spectrohelioscope), dies at 63
- Sep 15 Fred Hillebrand, American actor (Martin Kane, Moon Over Manhattan), dies at 69
- Sep 17 Eduard Spranger, German psychologist and educator, dies at 81
- Sep 21 Paulino Masip, Spanish playwright (b. 1899)
- Sep 27 Andy Coakley, American baseball pitcher (Philadelphia A's, Cincinnati Reds) and coach (Williams College 1911–13, Columbia University 1915–18), dies at 80
- Sep 30 Arnold Foster, English composer, dies at 66
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning