| 8761 | January 20 | Birth | 1980 – Philippe Gagnon, Canadian swimmer |
| 8762 | January 20 | Birth | 1980 – Kim Jeong-hoon, South Korean singer and actor |
| 8763 | January 20 | Birth | 1980 – Petra Rampre, Slovenian tennis player |
| 8764 | January 20 | Birth | 1980 – Matthew Tuck, Welsh singer-songwriter and guitarist |
| 8765 | January 20 | Birth | 1981 – Daniel Cudmore, Canadian actor and stuntman |
| 8766 | January 20 | Birth | 1981 – Brendan Fevola, Australian footballer |
| 8767 | January 20 | Birth | 1981 – Freddy Guzmán, Dominican baseball player |
| 8768 | January 20 | Birth | 1981 – Owen Hargreaves, English footballer |
| 8769 | January 20 | Birth | 1981 – Crystal Lowe, Canadian actress |
| 8770 | January 20 | Birth | 1981 – Jason Richardson, American basketball player |
| 8771 | January 20 | Birth | 1982 – Fredrik Strømstad, Norwegian footballer |
| 8772 | January 20 | Birth | 1983 – Mari Yaguchi, Japanese singer and actress (Morning Musume) |
| 8773 | January 20 | Birth | 1984 – Olivia Hallinan, English actress |
| 8774 | January 20 | Birth | 1984 – Rene Mandri, Estonian cyclist |
| 8775 | January 20 | Birth | 1985 – Marina Inoue, Japanese voice actress and singer |
| 8776 | January 20 | Birth | 1985 – Tanel Sokk, Estonian basketball player |
| 8777 | January 20 | Birth | 1985 – Roxanne Barcelo, Filipino singer, actress and host |
| 8778 | January 20 | Birth | 1986 – Genie Chuo, Taiwanese singer and actress |
| 8779 | January 20 | Birth | 1986 – Kevin Parker, Australian singer-songwriter and guitarist |
| 8780 | January 20 | Birth | 1987 – Evan Peters, American actor |
| 8781 | January 20 | Birth | 1987 – Janin Lindenberg, German sprinter |
| 8782 | January 20 | Birth | 1987 – Marco Simoncelli, Italian motorcycle racer (d. 2011) |
| 8783 | January 20 | Birth | 1988 – Colin Bensadon, Gibraltarian swimmer |
| 8784 | January 20 | Birth | 1988 – Uwa Elderson Echiéjilé, Nigerian footballer |
| 8785 | January 20 | Birth | 1988 – Nathan Jones, Australian rules footballer |
| 8786 | January 20 | Birth | 1988 – Callum MacLeod, English racing driver |
| 8787 | January 20 | Birth | 1988 – Jeffrén Suárez, Spanish footballer |
| 8788 | January 20 | Birth | 1989 – Nick Foles, American football player |
| 8789 | January 20 | Birth | 1989 – Washington Santana da Silva, Brazilian footballer |
| 8790 | January 20 | Birth | 1991 – Ciara Hanna, American actress and model |