- Sep 1 Leonor Sullivan, American politician (Rep-D-Missouri, 1955-77), dies at 86
- Sep 2 Bill Northam, Australian yachtsman (Olympic gold 5.5m class 1964; Sport Australia HOF), dies at 82
- Sep 3 Riccardo Torriani, Swiss ice hockey player, luger (Olympic bronze 1928, 48; took the Olympic oath 1948), dies at 76
- Sep 4 Oda Schaefer, German writer and journalist (Die Windharfe, Ladies Only), dies at 87
- Sep 5 Gert Fröbe [Karl Gerhart Fröbe], German actor (Goldfinger, Lover's Wood, Upper Hand), dies from a heart attack at 75
- Sep 5 Lawrence Brown, American trombonist (Duke Ellington Orchestra), dies at 81
- Sep 6 Leroy Brown [Roland Daniels], American professional wrestler, dies after a stroke at 37
- Sep 11 George Alpert, American railroad executive (New Haven Line), dies at 90
- Sep 11 John Sylvester White, American actor (Welcome Back, Kotter), dies at 68
- Sep 11 Luis Alvarez, American physicist (subatomic particles, Nobel 1968), dies of cancer at 77
Roger Hargreaves (1935-1988)
Sep 11 English author and illustrator of children's books (Mr. Men and Little Miss), dies of a stroke at 53
- Sep 12 (Carlos) "Charlie" Palmieri, American salsa and charanga music bandleader, musical director, and piano player (Tito Puente; Alegre All-Stars), dies after a heart attack at 60
- Sep 12 Alan Bible, American lawyer and politician (Sen-D-Nev, 1954-74), dies at 78
- Sep 12 Lauris Norstad, American general (NATO commander) and CEO (Owens-Corning Fiberglass), dies at 71
Margaret McFarland (1905-1988)
Sep 12 American child psychologist (Mister Rogers' Neighborhood), dies at 83
- Sep 14 Louis Quinn, actor (Unholy Rollers), dies at 73 of cancer
- Sep 14 Melle Weersma, Dutch jazz arranger and composer ("Penny Serenade"), dies at 80
- Sep 19 Oren Lee Staley, American 1st President of the National Farmers Organization (1955-79), dies after a fall at 65
- Sep 20 Roy Kinnear, English actor (Man About the House, Scrooge, Help!), dies at 54
- Sep 21 Christine Norden, British actress (Little Shop of Horrors, Night Beat), dies from pneumonia at 63
- Sep 21 Glenn Robert Davis, American politician, dies at 73
- Sep 21 Henry Koster, German-born Hollywood director, discovered Abbott and Costello, dies at 83
- Sep 21 Robert Gwathmey, American social realist artist, dies at 85
- Sep 21 Walter Vogt, Swiss writer (Wüthrich) and psychiatrist, dies at 61
- Sep 22 Rais Amrohvi, Pakistani poet and psychoanalyst, dies at 74
- Sep 22 Rezső Sugár, Hungarian composer (Savonarola), and pedagogue, dies at 68
- Sep 23 Arwel Hughes, Welsh composer, dies at 79
- Sep 23 Tibor Sekelj, Croatian explorer (b. 1912)
- Sep 25 Billy Carter, brother of US President Jimmy Carter, dies of cancer at 51
- Sep 27 William V. Shannon, American journalist and ambassador to Ireland (1977-81), dies at 61
- Sep 28 Ethel Grandin, American silent screen actress (Deserter), dies at 94
- Sep 28 Marjorie Bonner Lowry, American actress (Reno, Poor Girls), wife of writer Malcolm Lowry, dies at 83
- Sep 29 Charles Addams, American artist and cartoonist (New Yorker, The Addams Family) known for darkly humorous and macabre characters, dies of a heart attack at 76
- Sep 30 Chick Chandler [Fehmer Chandler], American actor (Seven Doors to Death, One Happy Family), dies at 83
- Sep 30 Joachim Prinz, German-American Zionist leader, author and Rabbi of Berlin (1926-37), dies at 86
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning