| 40951 | April 9 | Birth | 1971 – Austin Peck, American actor |
| 40952 | April 9 | Birth | 1971 – Jacques Villeneuve, Canadian race car driver |
| 40953 | April 9 | Birth | 1972 – Bernard Ackah, German-Japanese martial artist and kick-boxer |
| 40954 | April 9 | Birth | 1972 – Neve McIntosh, Scottish actress |
| 40955 | April 9 | Birth | 1972 – Angelica Sin, American porn actress |
| 40956 | April 9 | Birth | 1972 – Siiri Vallner, Estonian architect |
| 40957 | April 9 | Birth | 1973 – Spencer Rice, Canadian actor, director, producer, and screenwriter |
| 40958 | April 9 | Birth | 1974 – Jenna Jameson, American porn actress, director, and producer |
| 40959 | April 9 | Birth | 1974 – Alexander Pichushkin, Russian serial killer |
| 40960 | April 9 | Birth | 1975 – Robbie Fowler, English footballer and manager |
| 40961 | April 9 | Birth | 1975 – David Gordon Green, American director and screenwriter |
| 40962 | April 9 | Birth | 1976 – Kyle Peterson, American baseball player and sportscaster |
| 40963 | April 9 | Birth | 1976 – Blayne Weaver, American actor and screenwriter |
| 40964 | April 9 | Birth | 1977 – Marko Lepik, Estonian footballer |
| 40965 | April 9 | Birth | 1977 – Gerard Way, American singer-songwriter and producer (My Chemical Romance) |
| 40966 | April 9 | Birth | 1978 – Kousei Amano, Japanese actor |
| 40967 | April 9 | Birth | 1978 – Jorge Andrade, Portuguese footballer |
| 40968 | April 9 | Birth | 1978 – Vesna Pisarović, Croatian singer-songwriter |
| 40969 | April 9 | Birth | 1978 – Rachel Stevens, English singer-songwriter, dancer, and actress (S Club) |
| 40970 | April 9 | Birth | 1978 – Veronica Taylor, American voice actress |
| 40971 | April 9 | Birth | 1979 – Katsuni, French porn actress and director |
| 40972 | April 9 | Birth | 1979 – Billy Brandt, American porn actor |
| 40973 | April 9 | Birth | 1979 – Albina Dzhanabaeva, Russian singer and actress (Nu Virgos) |
| 40974 | April 9 | Birth | 1979 – Albert Hammond, Jr., American singer-songwriter and guitarist (The Strokes) |
| 40975 | April 9 | Birth | 1979 – Keith Nobbs, American actor |
| 40976 | April 9 | Birth | 1979 – Keshia Knight Pulliam, American actress |
| 40977 | April 9 | Birth | 1979 – Jeff Reed, American football player |
| 40978 | April 9 | Birth | 1979 – Mark Ruiz, Puerto Rican diver |
| 40979 | April 9 | Birth | 1979 – Ben Silverstone, English actor and lawyer |
| 40980 | April 9 | Birth | 1980 – Clueso, German singer-songwriter and producer |