| 12511 | January 31 | Birth | 1982 – Yuniesky Betancourt, Cuban baseball player |
| 12512 | January 31 | Birth | 1982 – Andreas Görlitz, German footballer |
| 12513 | January 31 | Birth | 1982 – Salvatore Masiello, Italian footballer |
| 12514 | January 31 | Birth | 1982 – Allan McGregor, Scottish footballer |
| 12515 | January 31 | Birth | 1982 – Bruno Nogueira, Portuguese comedian and actor |
| 12516 | January 31 | Birth | 1982 – Elena Paparizou, Swedish-Greek singer-songwriter (Antique) |
| 12517 | January 31 | Birth | 1982 – Jānis Sprukts, Latvian ice hockey player |
| 12518 | January 31 | Birth | 1982 – Yukimi Nagano, Swedish singer-songwriter (Little Dragon) |
| 12519 | January 31 | Birth | 1982 – Brad Thompson, American baseball player |
| 12520 | January 31 | Birth | 1983 – James Sutton, English actor |
| 12521 | January 31 | Birth | 1983 – Fabio Quagliarella, Italian footballer |
| 12522 | January 31 | Birth | 1984 – Vernon Davis, American football player |
| 12523 | January 31 | Birth | 1984 – Josh Johnson, Canadian-American baseball player |
| 12524 | January 31 | Birth | 1984 – Jeremy Wariner, American runner |
| 12525 | January 31 | Birth | 1984 – Alessandro Zanni, Italian rugby player |
| 12526 | January 31 | Birth | 1985 – Adam Federici, Australian footballer |
| 12527 | January 31 | Birth | 1985 – Mario Williams, American football player |
| 12528 | January 31 | Birth | 1986 – Megan Ellison, American film producer founded Annapurna Pictures |
| 12529 | January 31 | Birth | 1986 – George Elokobi, Cameroonian footballer |
| 12530 | January 31 | Birth | 1986 – Yves Ma-Kalambay, Belgian footballer |
| 12531 | January 31 | Birth | 1986 – Pauline Parmentier, French tennis player |
| 12532 | January 31 | Birth | 1987 – Tyler Hubbard, American singer-songwriter and guitarist (Florida Georgia Line) |
| 12533 | January 31 | Birth | 1987 – Marcus Mumford, American-English singer-songwriter |
| 12534 | January 31 | Birth | 1987 – Raúl Richter, German actor |
| 12535 | January 31 | Birth | 1988 – Justine Ozga, German tennis player |
| 12536 | January 31 | Birth | 1988 – Brett Pitman, English footballer |
| 12537 | January 31 | Birth | 1988 – Taijo Teniste, Estonian footballer |
| 12538 | January 31 | Birth | 1990 – Kota Yabu, Japanese singer and actor |
| 12539 | January 31 | Birth | 1992 – Tyler Seguin, Canadian ice hockey player |
| 12540 | January 31 | Birth | 1994 – Kenneth Zohore, Danish footballer |