- Sep 1 Jason Taylor, American Pro Football HOF linebacker (NFL Defensive Player of the Year 2006; 6 × Pro Bowl 2000, 02, 04–07; All-Pro 2000, 02, 06; Miami Dolphins), born in Pittsburgh, Pennsylvania
- Sep 1 Jhonen Vasquez, American comic book artist
- Sep 2 Daniel Southworth, American actor and stunt performer
- Sep 2 Jason Lawson, NBA center (Orlando Magic)
- Sep 2 Karina Wieland, Australian rower (Olympics 1996)
- Sep 3 Clare Kramer, American actress (Buffy the Vampire Slayer), born in Atlanta, Georgia
- Sep 4 Carmit Bachar, American musician (Pussycat Dolls), born in Los Angeles, California
- Sep 4 Jean Lavertue, Canadian weightlifter (Olympics 1996), born in Montreal, Quebec
- Sep 4 Nona Gaye, American singer and daughter of Marvin Gaye, born in Washington, D.C.
- Sep 5 Rawl Lewis, West Indian cricketer, born in Grenada
- Sep 6 Justin Whalin, American actor (Jimmy-Lois & Clark, Charles in Charge), born in San Francisco, California
- Sep 6 Nina Persson, Swedish musician (The Cardigans), born in Örebro, Sweden
- Sep 6 Tim Henman, English tennis player, born in Oxford, England
- Sep 7 Antonio McDyess, American basketball forward (NBA All Star 2001; Denver Nuggets, Detroit Pistons), born in Quitman, Mississippi
- Sep 7 Mario Frick, Liechtenstein soccer striker, manager (125 caps; FC Vaduz), born in Chur, Switzerland
- Sep 8 Braulio Luna, Mexican soccer midfielder (32 caps; San Luis), born in Mexico City, Mexico
- Sep 8 Tanaz Eshaghian, Iranian-American documentary filmmaker (Be Like Others), born in Iran
- Sep 9 Ana Carolina, Brazilian singer-songwriter and musician, born in Juiz de Fora, Brazil
- Sep 9 Gok Wan [Kowkhyn Wan], British fashion consultant, author and TV presenter (How to Look Good Naked, Gok Cooks Chinese), born in Leicester, England
- Sep 9 Jennie Kwan, American actress (Samantha Woo-California Dreams), born in Glendale, California
- Sep 9 Leah O'Brien, American softball player (Olympic gold 1996), born in Garden Grove, California
- Sep 9 Mathias Färm, Swedish guitarist (Millencolin), born in Örebro, Sweden
- Sep 9 Vikram Batra, Indian army officer, born in Palampur, India (d. 1999)
- Sep 10 Ben Wallace, American basketball forward (NBA C'ship 2004; NBA Defensive Player of the Year 2002-03, 2005-06; NBA All-Star 2003–06; Detroit Pistons), born in White Hall, Alabama
- Sep 10 Ryan Phillippe, American actor (Cruel Intentions, Shooter), born in New Castle, Delaware
- Sep 11 Lucian Sahetapy, Dutch soccer player (FC Groningen), born in Groningen, Netherlands
- Sep 12 Caroline Aigle, French first woman fighter pilot in the French Air Force aged 25, born in Montauban, France (d. 2007)
- Sep 12 Jennifer Nettles, American country singer (Sugarland), born in Douglas, Georgia
- Sep 12 Nuno Valente, Portuguese footballer, born in Lisbon, Portugal
- Sep 13 Keith Murray, American rapper (Def Squad), born in Roosevelt, Long Island, New York
- Sep 13 Travis Knight, American NBA center (Boston Celtics), born in Salt Lake City, Utah
- Sep 14 Hicham El Guerrouj, Moroccan athlete (Olympic gold 1,500m, 5k 2004), born in Berkane, Morocco
- Sep 16 Julian Castro, American politician, born in San Antonio, Texas
- Sep 17 Jason Hewitt, Australian baseball infielder (Olympics 1996)
- Sep 17 Mirah [Yom Tov Zeitlyn], American singer-songwriter, born in Philadelphia, Pennsylvania
- Sep 17 Rasheed Wallace, American basketball forward (NBA C'ship 2004; NBA All-Star 2000, 01, 06, 08; Portland Trailblazers, Detroit Pistons), born in Philadelphia, Pennsylvania
- Sep 17 Tormod Granheim, Norwegian adventurer (extreme skiing), born in Trondheim, Norway
- Sep 18 Sol Campbell, English footballer, born in Plaistow, London
- Sep 18 Ticha Penicheiro, Portuguese basketball player (Sacramento Monarchs), born in Figueira da Foz, Portugal
- Sep 18 Xzibit [Alvin Nathaniel Joiner], American rapper and actor (At the Speed of Life, Pimp My Ride), born in Detroit, Michigan
Jimmy Fallon (48 years old)
Sep 19 American actor and comedian (Saturday Night Live; The Tonight Show), born in NYC, New York
- Sep 19 Victoria Silvstedt, Swedish model and TV personality (Playboy playmate Dec 96, Playmate of the Year 1997), born in Skelleftehamn, Sweden
- Sep 20 Michael Waddington, American defense lawyer, born in New Castle, Pennsylvania
- Sep 21 Andy Todd, English footballer
- Sep 21 Taral Hicks, American actress (A Bronx Tale) and R&B singer ("Silly"), born in The Bronx, New York
- Sep 22 Gary Trent, American NBA forward (Portland Trailblazers), born in Columbus, Ohio
- Sep 22 Yoo Chae-yeong, South Korean singer and actress (Cool), born in South Korea (d. 2014)
- Sep 23 Doris Glenn Easterly, diver (Olympics 1996), born in Richmond, Virginia
- Sep 23 Harumi Inoue, Japanese actress and model
- Sep 23 Matt Hardy, American professional wrestler
- Sep 24 Kiwane Garris, American NBA guard (Denver Nuggets), born in Chicago, Illinois
- Sep 25 Daniel Kessler, American musician (Interpol), born in London, United Kingdom
- Sep 26 Boris Cepeda, German-Ecuadorian pianist and diplomat, born in Quito, Ecuador
- Sep 26 Gary Hall Jr., American competition swimmer, born in Cincinnati, Ohio
- Sep 26 Martin Muursepp, Estonian NBA forward (Dallas Mavericks), born in Tallinn, Estonia
- Sep 27 Edward Thomas, CFL linebacker (Montreal Alouettes)
- Sep 28 John Light, English actor (Around the World in Eighty Days), born in Birmingham, England
- Sep 28 Joonas Kolkka, Finnish footballer
- Sep 28 Mariya Kiselyova, Russian swimmer
- Sep 30 Jeremy Giambi, American MLB baseball player, 1998-2003 (Kansas City Royals, Oakland Athletics, and two other teams), born in San Jose, California (d. 2022)
About September 1974
How Old? 48 years old
Generation: Generation X
Leap Year: No