| 100231 | September 3 | Birth | 1969 – Noah Baumbach, American actor, director, producer, and screenwriter |
| 100232 | September 3 | Birth | 1969 – John Fugelsang, American comedian, actor, and talk show host |
| 100233 | September 3 | Birth | 1969 – Robert Karlsson, Swedish golfer |
| 100234 | September 3 | Birth | 1969 – Marianna Komlos, Canadian bodybuilder, model, and wrestler (d. 2004) |
| 100235 | September 3 | Birth | 1969 – Matthew Offord, English journalist and politician |
| 100236 | September 3 | Birth | 1970 – Jeremy Glick, American businessman (d. 2001) |
| 100237 | September 3 | Birth | 1970 – George Lynch, American basketball player and manager |
| 100238 | September 3 | Birth | 1970 – Gareth Southgate, English footballer and manager |
| 100239 | September 3 | Birth | 1971 – Kiran Desai, Indian-American author |
| 100240 | September 3 | Birth | 1971 – Glen Housman, Australian swimmer |
| 100241 | September 3 | Birth | 1971 – Chabeli Iglesias, Portuguese-Spanish journalist |
| 100242 | September 3 | Birth | 1971 – Trevor St. John, American actor |
| 100243 | September 3 | Birth | 1972 – Christine Boudrias, Canadian speed skater |
| 100244 | September 3 | Birth | 1972 – Natalia Estrada, Spanish model and actress |
| 100245 | September 3 | Birth | 1972 – Bob Evans, American wrestler and trainer |
| 100246 | September 3 | Birth | 1972 – Robbie O'Davis, Australian rugby player |
| 100247 | September 3 | Birth | 1972 – Martin Straka, Czech ice hockey player |
| 100248 | September 3 | Birth | 1973 – Norihiko Hibino, Japanese saxophonist and composer |
| 100249 | September 3 | Birth | 1973 – Jennifer Paige, American singer-songwriter and actress |
| 100250 | September 3 | Birth | 1973 – Damon Stoudamire, American basketball player and coach |
| 100251 | September 3 | Birth | 1974 – Clare Kramer, American actress, producer, and screenwriter |
| 100252 | September 3 | Birth | 1974 – Rahul Sanghvi, Indian cricketer |
| 100253 | September 3 | Birth | 1975 – Redfoo, American singer-songwriter, producer, and dancer (LMFAO) |
| 100254 | September 3 | Birth | 1975 – Daniel Chan, Hong Kong singer-songwriter and actor |
| 100255 | September 3 | Birth | 1975 – Cristobal Huet, French ice hockey player |
| 100256 | September 3 | Birth | 1976 – Valery V. Afanasyev, Russian ice hockey player and coach |
| 100257 | September 3 | Birth | 1976 – Ashley Jones, American actress |
| 100258 | September 3 | Birth | 1976 – Jevon Kearse, American football player |
| 100259 | September 3 | Birth | 1976 – Vivek Oberoi, Indian actor |
| 100260 | September 3 | Birth | 1976 – Raheem Morris, American football player and coach |