| 138812 | December 8 | Birth | 1989 – Alonso Edward, Panamanian sprinter |
| 138813 | December 8 | Birth | 1989 – Jen Ledger, English singer and drummer (Skillet) |
| 138814 | December 8 | Birth | 1992 – Katie Stevens, American actress and singer |
| 138815 | December 8 | Birth | 1992 – Yui Yokoyama, Japanese singer and actress (AKB48, NMB48, and Not Yet) |
| 138816 | December 8 | Birth | 1993 – Janari Jõesaar, Estonian basketball player |
| 138817 | December 8 | Birth | 1993 – Jordan Obita, English footballer |
| 138818 | December 8 | Birth | 1993 – AnnaSophia Robb, American actress and singer |
| 138819 | December 8 | Birth | 1994 – Conseslus Kipruto, Kenyan runner |
| 138820 | December 8 | Birth | 1994 – Raheem Sterling, English footballer |
| 138821 | December 8 | Birth | 1995 – Jordon Ibe, English footballer |
| 138822 | December 8 | Birth | 1996 – Teala Dunn, American actress |
| 138823 | December 8 | Birth | 2001 – Tylen Jacob Williams, American actor |
| 138824 | December 8 | Death | 899 – Arnulf of Carinthia (b. 850) |
| 138825 | December 8 | Death | 1626 – John Davies, English poet, lawyer, and politician (b. 1569) |
| 138826 | December 8 | Death | 1632 – Philippe van Lansberge, Dutch astronomer and mathematician (b. 1561) |
| 138827 | December 8 | Death | 1638 – Ivan Gundulić, Croatian poet (b. 1589) |
| 138828 | December 8 | Death | 1643 – John Pym, English politician (b. 1583) |
| 138829 | December 8 | Death | 1649 – Noël Chabanel, French missionary and saint (b. 1613) |
| 138830 | December 8 | Death | 1680 – Henry Pierrepont, 1st Marquess of Dorchester, English politician (b. 1606) |
| 138831 | December 8 | Death | 1691 – Richard Baxter, English minister, poet, and hymn-writer (b. 1615) |
| 138832 | December 8 | Death | 1695 – Barthélemy d'Herbelot, French orientalist and academic (b. 1625) |
| 138833 | December 8 | Death | 1709 – Thomas Corneille, French playwright and philologist (b. 1625) |
| 138834 | December 8 | Death | 1722 – Elizabeth Charlotte, Princess Palatine (b. 1652) |
| 138835 | December 8 | Death | 1744 – Marie Anne de Mailly, French mistress of Louis XV of France (b. 1717) |
| 138836 | December 8 | Death | 1745 – Étienne Fourmont, French orientalist and academic (b. 1683) |
| 138837 | December 8 | Death | 1746 – Charles Radclyffe, English courtier and soldier (b. 1693) |
| 138838 | December 8 | Death | 1756 – William Stanhope, 1st Earl of Harrington, English politician and diplomat, Lord Lieutenant of Ireland (b. 1690) |
| 138839 | December 8 | Death | 1768 – Jean Denis Attiret, French painter and missionary (b. 1702) |
| 138840 | December 8 | Death | 1779 – Nathan Alcock, English physician (b. 1707) |
| 138811 | December 8 | Birth | 1989 – Drew Doughty, Canadian ice hockey player |