| 100621 | September 4 | Birth | 1971 – Lance Klusener, South African cricketer and coach |
| 100622 | September 4 | Birth | 1971 – Vaughn Ross, American murderer (d. 2013) |
| 100623 | September 4 | Birth | 1971 – Ione Skye, English-American actress |
| 100624 | September 4 | Birth | 1971 – Maik Taylor, German-Irish footballer and coach |
| 100625 | September 4 | Birth | 1971 – Anita Yuen, Hong Kong model and actress, Miss Hong Kong 1990 |
| 100626 | September 4 | Birth | 1972 – Françoise Yip, Canadian actress |
| 100627 | September 4 | Birth | 1973 – Jason David Frank, American actor and mixed martial artist |
| 100628 | September 4 | Birth | 1973 – Aaron Fultz, American baseball player and coach |
| 100629 | September 4 | Birth | 1974 – Carmit Bachar, American singer, dancer, and actress (The Pussycat Dolls) |
| 100630 | September 4 | Birth | 1974 – Mati Pari, Estonian footballer and coach |
| 100631 | September 4 | Birth | 1974 – Lincoln Roberts, Tobagonian cricketer |
| 100632 | September 4 | Birth | 1974 – Sirly Tiik, Estonian javelin thrower and shot putter |
| 100633 | September 4 | Birth | 1975 – Sergio Ballesteros, Spanish footballer |
| 100634 | September 4 | Birth | 1975 – Mark Ronson, English DJ, producer, and songwriter, co-founded Allido Records |
| 100635 | September 4 | Birth | 1975 – Dave Salmoni, Canadian zoologist, television host, and producer |
| 100636 | September 4 | Birth | 1975 – Yoani Sánchez, Cuban philologist and blogger |
| 100637 | September 4 | Birth | 1976 – Katreeya English, English-Thai singer, actress, and model |
| 100638 | September 4 | Birth | 1976 – Denilson Martins Nascimento, Brazilian footballer |
| 100639 | September 4 | Birth | 1976 – Mario-Ernesto Rodríguez, Uruguayan-Italian footballer |
| 100640 | September 4 | Birth | 1977 – Sun-woo Kim, South Korean baseball player |
| 100641 | September 4 | Birth | 1977 – Lucie Silvas, English singer-songwriter and pianist |
| 100642 | September 4 | Birth | 1977 – Kia Stevens, American wrestler |
| 100643 | September 4 | Birth | 1978 – Wes Bentley, American actor and producer |
| 100644 | September 4 | Birth | 1978 – Frederik Veuchelen, Belgian cyclist |
| 100645 | September 4 | Birth | 1978 – Christian Walz, Swedish singer-songwriter and producer |
| 100646 | September 4 | Birth | 1979 – Maxim Afinogenov, Russian ice hockey player |
| 100647 | September 4 | Birth | 1979 – Pedro Macedo Camacho, Portuguese pianist, composer, and producer |
| 100648 | September 4 | Birth | 1979 – Kristina Krepela, Croatian actress |
| 100649 | September 4 | Birth | 1979 – Kosuke Matsuura, Japanese race car driver |
| 100650 | September 4 | Birth | 1979 – MC Mong, South Korean rapper, producer, and actor |