| 100261 | September 3 | Birth | 1977 – Rui Marques, Angolan footballer |
| 100262 | September 3 | Birth | 1977 – Olof Mellberg, Swedish footballer |
| 100263 | September 3 | Birth | 1977 – Nate Robertson, American baseball player |
| 100264 | September 3 | Birth | 1978 – Terje Bakken, Norwegian singer-songwriter (Windir) (d. 2004) |
| 100265 | September 3 | Birth | 1978 – John Curtis, English footballer |
| 100266 | September 3 | Birth | 1978 – Paul Moor, English bowler |
| 100267 | September 3 | Birth | 1978 – Michal Rozsíval, Czech ice hockey player |
| 100268 | September 3 | Birth | 1978 – Nick Wechsler, American actor |
| 100269 | September 3 | Birth | 1979 – Júlio César, Brazilian footballer |
| 100270 | September 3 | Birth | 1979 – Tiffany Chapman, English actress |
| 100271 | September 3 | Birth | 1979 – Tomo Miličević, Bosnian-American guitarist (Thirty Seconds to Mars) |
| 100272 | September 3 | Birth | 1980 – B.G., American rapper and actor (Chopper City Boyz and Cash Money Millionaires) |
| 100273 | September 3 | Birth | 1980 – Daniel Bilos, Argentinian footballer |
| 100274 | September 3 | Birth | 1980 – Cindy Burger, Dutch footballer |
| 100275 | September 3 | Birth | 1980 – Jennie Finch, American softball player |
| 100276 | September 3 | Birth | 1980 – Justin Halpern, American blogger and author |
| 100277 | September 3 | Birth | 1980 – Jason McCaslin, Canadian singer-songwriter, bass player, and producer (Sum 41 and The Operation M.D.) |
| 100278 | September 3 | Birth | 1981 – Fearne Cotton, English radio and television host |
| 100279 | September 3 | Birth | 1982 – Sarah Burke, Canadian skier (d. 2012) |
| 100280 | September 3 | Birth | 1982 – Ayumi Fujimura, Japanese voice actress |
| 100281 | September 3 | Birth | 1982 – Andrew McMahon, American singer-songwriter, pianist, and producer (Something Corporate and Jack's Mannequin) |
| 100282 | September 3 | Birth | 1982 – Kaori Natori, Japanese singer (Spontania) |
| 100283 | September 3 | Birth | 1982 – Tiago Rannow, Brazilian footballer |
| 100284 | September 3 | Birth | 1983 – Augusto Farfus, Brazilian race car driver |
| 100285 | September 3 | Birth | 1983 – Nicky Hunt, English footballer |
| 100286 | September 3 | Birth | 1983 – Marcus McCauley, American football player |
| 100287 | September 3 | Birth | 1983 – Valdas Vasylius, Lithuanian basketball player |
| 100288 | September 3 | Birth | 1983 – Christine Woods, American actress |
| 100289 | September 3 | Birth | 1984 – Paz de la Huerta, American model and actress |
| 100290 | September 3 | Birth | 1984 – Garrett Hedlund, American actor and singer |