| 6691 | January 15 | Birth | 1988 – Skrillex, American singer-songwriter, DJ, and producer |
| 6692 | January 15 | Birth | 1988 – Daniel Caligiuri, German footballer |
| 6693 | January 15 | Birth | 1988 – Jun. K, South Korean singer-songwriter and actor (2PM) |
| 6694 | January 15 | Birth | 1988 – Aija Putniņa, Latvian basketball player |
| 6695 | January 15 | Birth | 1989 – Alexei Cherepanov, Russian ice hockey player (d. 2008) |
| 6696 | January 15 | Birth | 1989 – Keiffer Hubbell, American ice dancer |
| 6697 | January 15 | Birth | 1989 – Tasha Reign, American porn actress, director, and producer |
| 6698 | January 15 | Birth | 1989 – Ronny Vencatachellum, Mauritian swimmer |
| 6699 | January 15 | Birth | 1990 – Paul Blake, English sprinter |
| 6700 | January 15 | Birth | 1990 – Fernando Forestieri, Italian footballer |
| 6701 | January 15 | Birth | 1990 – Konstantinos Sloukas, Greek basketball player |
| 6702 | January 15 | Birth | 1990 – Sophie Sumner, English model and actress |
| 6703 | January 15 | Birth | 1990 – Robert Trznadel, Polish footballer |
| 6704 | January 15 | Birth | 1991 – Marc Bartra, Spanish footballer |
| 6705 | January 15 | Birth | 1991 – Nicolai Jørgensen, Danish footballer |
| 6706 | January 15 | Birth | 1991 – Darya Klishina, Russian long jumper |
| 6707 | January 15 | Birth | 1991 – Jahangir Wasim, Pakistani businessman founded Origin NGO |
| 6708 | January 15 | Birth | 1992 – Joshua King, Norwegian footballer |
| 6709 | January 15 | Birth | 1994 – Jordy Croux, Belgian footballer |
| 6710 | January 15 | Birth | 1994 – Eric Dier, English footballer |
| 6711 | January 15 | Birth | 1996 – Dove Cameron, American actress and singer |
| 6712 | January 15 | Death | 69 – Galba, Roman emperor (b. 3 BC) |
| 6713 | January 15 | Death | 570 – Íte of Killeedy, Irish nun and saint (b. 475) |
| 6714 | January 15 | Death | 849 – Theophylact, Byzantine emperor (b. 793) |
| 6715 | January 15 | Death | 936 – Rudolph of France (b. 880) |
| 6716 | January 15 | Death | 1568 – Nicolaus Olahus, Romanian archbishop (b. 1493) |
| 6717 | January 15 | Death | 1623 – Paolo Sarpi, Italian lawyer, historian, and scholar (b. 1552) |
| 6718 | January 15 | Death | 1672 – John Cosin, English bishop and academic (b. 1594) |
| 6719 | January 15 | Death | 1683 – Philip Warwick, English politician (b. 1609) |
| 6720 | January 15 | Death | 1775 – Giovanni Battista Sammartini, Italian organist and composer (b. 1700) |