| 91295 | August 12 | Birth | 1971 – Rebecca Gayheart, American actress |
| 91296 | August 12 | Birth | 1971 – Pete Sampras, American tennis player |
| 91297 | August 12 | Birth | 1972 – Demir Demirkan, Turkish singer-songwriter and producer |
| 91298 | August 12 | Birth | 1972 – Mark Kinsella, Irish footballer and manager |
| 91299 | August 12 | Birth | 1972 – Takanohana Kōji, Japanese sumo wrestler, the 65th Yokozuna |
| 91300 | August 12 | Birth | 1972 – Gyanendra Pandey, Indian cricketer |
| 91301 | August 12 | Birth | 1972 – Del the Funky Homosapien, American rapper and producer (Hieroglyphics, Deltron 3030, and Gorillaz) |
| 91302 | August 12 | Birth | 1973 – Muqtada al-Sadr, Iraqi politician |
| 91303 | August 12 | Birth | 1973 – Joseba Beloki, Spanish cyclist |
| 91304 | August 12 | Birth | 1973 – Marcy Borders, American bank clerk (d. 2015) |
| 91305 | August 12 | Birth | 1973 – Jonathan Coachman, American basketball player, wrestler, and sportscaster |
| 91306 | August 12 | Birth | 1973 – Todd Marchant, American ice hockey player and coach |
| 91307 | August 12 | Birth | 1973 – Richard Reid, English terrorist |
| 91308 | August 12 | Birth | 1974 – Matt Clement, American baseball player and coach |
| 91309 | August 12 | Birth | 1975 – Casey Affleck, American actor, director, and screenwriter |
| 91310 | August 12 | Birth | 1975 – Burcu Güneş, Turkish singer-songwriter |
| 91311 | August 12 | Birth | 1976 – Wednesday 13, American singer-songwriter and guitarist (Frankenstein Drag Queens from Planet 13, Murderdolls, Bourbon Crow, and Gunfire 76) |
| 91312 | August 12 | Birth | 1976 – Pedro Collins, Barbadian cricketer |
| 91313 | August 12 | Birth | 1976 – Mikko Lindström, Finnish guitarist (HIM and WhoCares) |
| 91314 | August 12 | Birth | 1976 – Brad Lukowich, Canadian ice hockey player and coach |
| 91315 | August 12 | Birth | 1976 – Richard McCourt, English comedian, actor, and television host |
| 91316 | August 12 | Birth | 1976 – Henry Tuilagi, Samoan rugby player |
| 91317 | August 12 | Birth | 1976 – Antoine Walker, American basketball player |
| 91318 | August 12 | Birth | 1977 – Plaxico Burress, American football player |
| 91319 | August 12 | Birth | 1977 – Jesper Grønkjær, Danish footballer |
| 91320 | August 12 | Birth | 1977 – Park Yong-ha, South Korean singer and actor (d. 2010) |
| 91291 | August 12 | Birth | 1970 – Anthony Swofford, American soldier and author |
| 91292 | August 12 | Birth | 1970 – Hidetaka Yoshioka, Japanese actor |
| 91293 | August 12 | Birth | 1971 – Michael Ian Black, American comedian, actor, director, producer, and screenwriter |
| 91294 | August 12 | Birth | 1971 – Yvette Nicole Brown, American comedian, actress, and singer |