- Sep 1 Brian Bellows, Canadian ice hockey left wing (1,188 NHL games; NHL All Star 1984, 88, 92; Minnesota North Stars, Montreal Canadiens), born in St. Catharines, Ontario
- Sep 1 David West, American MLB baseball pitcher, 1988-98 (Minnesota Twins, Philadelphia Phillies, and 3 other teams), born in Memphis, Tennessee (d. 2022)
- Sep 3 Ernest Givins, American NFL wide receiver (Pro Bowl 1990, 92; Houston Oilers), born in St. Petersburg, Florida
- Sep 4 Tomas Sandström, Swedish ice hockey right wing (Stanley Cup 1997 Detroit Red Wings; NHL All-Star 1988, 91; NY Rangers, LA Kings), born in Jakobstad, Finland
- Sep 5 Frank Farina, Australian footballer, born in Darwin, Australia
- Sep 8 Steffan Peters, German-American equestrian dressage competitor (Olympic bronze 1996, 2016), born in Wesel, West Germany
- Sep 10 Tim Harris, American football defensive end (Pro Bowl 1989; All-Pro 1988, 89; Super Bowl 1994; GB Packers, SF 49ers), born in Birmingham, Alabama
- Sep 11 Ellis Burks, American baseball outfielder (Colorado Rockies), born in Vicksburg, Mississippi
- Sep 11 Eric Thomas, American NFL cornerback (Denver Broncos), born in Tucson, Arizona
- Sep 12 Dieter Hecking, German football player and manager, born in Castrop-Rauxel, West Germany
- Sep 12 Greig Oliver, Scottish rugby union scrum-half (3 Tests) and coach (development officer Munster Rugby), born in Hawick, Scotland (d. 2023)
- Sep 14 Kurt Gouveia, American NFL linebacker (Philadelphia Eagles), born in Honolulu, Hawaii
- Sep 15 Andrew Landenberger, Australian tornado sailor (Olympic bronze 1992, 96)
- Sep 17 Karen Straker, British horse show jumper, born in County Durham
- Sep 17 Mosese Taga, Fijian rugby union front rower (48 Tests; Suva RFU, Nabua RUFC), born in Nailaga, Fiji (d. 2022)
- Sep 19 Bob Papa, American sportscaster (NBC Sports), born in Dumont, New Jersey
- Sep 21 Danny Villa, NFL guard (KC Chiefs)
- Sep 23 Clayton Blackmore, Welsh footballer
- Sep 23 Diane Dixon, American 4x400m runner (Olympic silver 1988), born in Brooklyn, New York
- Sep 24 Rafael Palmeiro, 1st baseman (Baltimore Orioles), born in Havana, Cuba
- Sep 25 Joey Saputo, Canadian businessman and sports executive, born in Montreal, Quebec
- Sep 26 Bobby Joe Edmonds, American NFL running back (Tampa Bay Bucs), born in Nashville, Tennessee,
- Sep 26 Dave Martinez, American baseball outfielder (Chicago White Sox), born in Manhattan, New York
- Sep 26 Derek Ho, American surfer (World C'ship 1993; Hawaiian Triple Crown 1984, 86, 88, 90), born in Kailua, Hawaii (d. 2020)
- Sep 28 Paul Jewell, English football manager
- Sep 29 Brad Lohaus, American NBA fplayer (NY Knicks), born in Ulm, Minnesota
- Sep 29 John Tucker, Canadian NHL right wing (Tampa Bay Lightning), born in Windsor, Ontario
- Sep 30 Mike McKay, Australian rower (Olympics gold coxless four 1992, 96; silver eights 2000, bronze 2004), born in Melbourne, Australia
About September 1964
How Old? 59 years old
Generation: Baby Boomer
Leap Year: Yes
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions