- Sep 1 W. Richard Stevens, Zambian computer scientist (b. 1951)
- Sep 4 Klement Slavický, Czech composer (Sinfonietta No. 4 - Pax hominibus in universo orbi), dies at 88 [1]
- Sep 5 Alan Clark, English politician (Minister for Defence Procurement), dies at 71
- Sep 5 Albert Oram, Baron Oram, British Labour politician, dies at 86
- Sep 5 Allen Funt, American TV host and creator (Candid Camera), dies at 84
- Sep 5 Bryce Mackasey, Canadian politician, dies at 78
- Sep 5 Katie Webster [Kathyrne Jewel Thorne], American boogie pianist (The Swamp Boogie Queen), dies of a heart attack at 63
- Sep 6 René Lecavalier, French Canadian sportscaster (b. 1918)
- Sep 7 Jim Keith, American conspiracy theorist, dies after a fall at 49
- Sep 8 Moondog [Louis Thomas Hardin], American composer, musician and poet ("Cofee Beans"), dies at 83
- Sep 9 Chan Parker, American author; wife of Charlie Parker and Phil Woods (b. 1925)
- Sep 9 David Stafford-Clark, English psychiatrist, dies at 83
- Sep 9 Jim "Catfish" Hunter, American Baseball Hall of Fame pitcher (MLB All-Star 1966, 67, 70, 72–1976; World Series 1972–74, 77, 78; AL Cy Young Award 1974; Oakland A's, NY Yankees), dies from Lou Gehrig's disease at 53
- Sep 9 Ruth Roman, American actress (Strangers on a Train, Knots Landing, Dallas), dies at 76
- Sep 10 Alfredo Kraus, Spanish bel canto operatic tenor, dies at 71
- Sep 11 Belkis Ayón, Cuban printmaker (collography), commits suicide at 32
- Sep 11 Gonzalo Rodriguez, Uruguayan auto racing driver (b. 1972)
- Sep 12 Bill Quackenbush, Canadian Hockey Hall of Fame defenceman (8 x NHL All-Star; Boston Bruins, Detroit Red Wings) and coach (Princeton), dies from Alzheimer's disease at 77
- Sep 13 Benjamin Bloom, American educational theorist (b. 1913)
- Sep 14 Attila Bozay, Hungarian composer, dies at 60
- Sep 14 Charles Crichton, English film director (A Fish Called Wanda), dies at 89
- Sep 14 Hans Melchior Brugk, German composer, dies at 89
- Sep 17 Frankie Vaughan, British pop singer ("Give Me the Moonlight, Give Me the Girl"), dies of heart failure at 71
- Sep 19 Ed Cobb, American pop vocalist (The Four Preps, 1956-66 -"26 Miles (Santa Catalina)"), songwriter ("Tainted Love"), sound engineer and producer, dies of leukemia at 61
- Sep 20 Raisa Gorbacheva, Russian philanthropist and wife of Mikhail Gorbachev, dies at 67
- Sep 20 Robert Lebel, French Canadian ice hockey executive, dies at 93
- Sep 20 Tahia Carioca, Egyptian actress and belly dancer (Watch Out For Zouzou), dies at 79
- Sep 20 Willy Millowitsch, German actor (National Lampoon's European Vacation), dies from heart failure at 90
- Sep 21 Vic Stollmeyer, West Indian cricket batsman (1 Test, 1 x 50, HS 96; Trinidad & Tobago), dies at 83
George C. Scott (1927-1999)
Sep 22 American actor (Dr. Strangelove), dies of a ruptured abdominal aortic aneurysm at 71
- Sep 22 Wyndraeth Morris-Jones, British political scientist, dies at 81
- Sep 23 Ivan Goff, Australian screenwriter (Man of a Thousand Faces), dies at 89
- Sep 24 Cyril Bowles, British clergyman (Bishop of Derby, 1969-88), dies at 83
- Sep 24 Torsten Nilsson, Swedish organist, choral director, composer (Out of the Night of the Earth; Septem improvisationes), and pedagogue, dies at 79
- Sep 25 Marion Zimmer Bradley, American sci-fi author (Storm Queen), dies at 69
- Sep 26 Oseola McCarty, American philanthropist (b. 1908)
- Sep 28 Carl Hall [Caldwell], American soul singer ("You Don't Know Nothing About Love"; "What About You"), and session vocalist, dies at 65
- Sep 30 Anna Mae Winburn, African American bandleader of all female big band (International Sweethearts of Rhythm), dies at 86
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning