- Sep 1 Duško Ivanović, Montenegrin basketball coach (Barcelona, Panathinaikos), born in Bijelo Polje, Montenegro
- Sep 2 Tony Alva, American skateboarder
- Sep 3 Erhan Önal, Turkish soccer central defender (12 caps; FC Bayern Munich, Standard Liège, Galatasaray), born in Izmir, Turkey (d. 2021)
- Sep 5 Peter Winnen, Dutch bicycle road athlete, born in Ysselsteyn, Netherlands
- Sep 6 Gwyn Evans, Welsh rugby union fullback (12 caps Wales, 2 caps British & Irish Lions; Maesteg RFC) and coach (Italy 1977-78), born in Maesteg, Wales
- Sep 11 Jeff Sluman, American golfer (PGA C'ship 1988; 6 PGA Tour titles), born in Rochester, New York
- Sep 13 Mark Wiebe, American golfer (British Senior Open 2013), born in Seaside, Oregon
- Sep 14 Jerry Don Gleaton, American baseball player, born in Brownwood, Texas
- Sep 14 Kepler Wessels, South African cricketer who played for both Australia and South Africa, born in Bloemfontein, Orange Free State Province, South Africa
- Sep 14 Tim Wallach, American MLB player (Montreal Expos 1980-1992), born in Huntington Park, California
- Sep 15 Fulton Allem, South African golfer (3 PGA Tour titles), born in Kroonstad, South Africa
- Sep 16 David McCreery, Irish footballer (Newcastle United), born in Belfast, Northern Ireland
- Sep 16 Keith Connor, British triple jumper (Olympic bronze 1984), born in Anguilla, West Indies
- Sep 20 Vladimir Tkachenko, Ukrainian-Russian basketball player (Olympic bronze 1980), born in Sochi, Russian SFSR, Soviet Union
- Sep 21 Lynette Love, US tai kwan do champ 1987/(Olympics 1988)
- Sep 22 Giuseppe Saronni, Italian cyclist (Giro d'Italia), born in Novara, Italy
- Sep 22 Mark Johnson, American NHL forward (Olympic gold 1980, Pitts, NJ), born in Madison, Wisconsin
- Sep 22 Phil Blackmar, American golfer (3 PGA Tour titles), born in San Diego, California
- Sep 23 Tony Fossas, Cuba, pitcher (St Louis Cardinals)
- Sep 23 Tunch Ilkin, American football offensive tackle (Pro Bowl 1988, 89; Pittsburgh Steelers) and broadcaster (Pittsburgh Steelers TV & radio 1998-2020), born in Istanbul, Turkey)d. 2021)
- Sep 27 Bill Athey, English cricketer (England batsman in 23 Tests 1980-88), born in Middlesbrough, England
- Sep 29 Chris Broad, English cricketer (prolific England opening batsman 1984-89), born in Bristol, England
- Sep 29 Tim Flannery, American baseball infielder (SD Padres), coach (World Series 2010, 12, 14 SF Giants) and broadcaster (CSN Bay Area, MLB Network), born in Tulsa, Oklahoma
About September 1957
How Old? 66 years old
Generation: Baby Boomer
Leap Year: No
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions