| 138061 | December 6 | Birth | 1985 – Shannon Bobbitt, American basketball player |
| 138062 | December 6 | Birth | 1985 – Aristeidis Grigoriadis, Greek swimmer |
| 138063 | December 6 | Birth | 1985 – Dulce María, Mexican singer-songwriter, dancer, and actress (RBD and Jeans) |
| 138064 | December 6 | Birth | 1985 – Rudra Pratap Singh, Indian cricketer |
| 138065 | December 6 | Birth | 1986 – Sean Edwards, English race car driver (d. 2013) |
| 138066 | December 6 | Birth | 1986 – Georgia Horsley, English model, Miss England 2007 |
| 138067 | December 6 | Birth | 1986 – Matt Niskanen, American ice hockey player |
| 138068 | December 6 | Birth | 1988 – Sandra Nurmsalu, Estonian singer and violinist (Urban Symphony) |
| 138069 | December 6 | Birth | 1988 – Nils Petersen, German footballer |
| 138070 | December 6 | Birth | 1989 – Felix Schiller, German footballer |
| 138071 | December 6 | Birth | 1990 – Tamira Paszek, Austrian tennis player |
| 138072 | December 6 | Birth | 1992 – Britt Assombalonga, Congolese footballer |
| 138073 | December 6 | Birth | 1992 – Johnny Manziel, American football player |
| 138074 | December 6 | Birth | 1993 – Pedro Rafael Amado Mendes, Portuguese footballer |
| 138075 | December 6 | Birth | 1995 – Joy Gruttmann, German singer |
| 138076 | December 6 | Birth | 1996 – Stefanie Scott, American actress and singer |
| 138077 | December 6 | Birth | 1998 – Angelīna Kučvaļska, Latvian figure skater |
| 138078 | December 6 | Death | 343 – Saint Nicholas, Greek bishop and saint (b. 270) |
| 138079 | December 6 | Death | 672 – Muhammad al-Nafs al-Zakiyya, Arab rebel leader (b. 710) |
| 138080 | December 6 | Death | 735 – Prince Toneri of Japan (b. 676) |
| 138081 | December 6 | Death | 1185 – Afonso I of Portugal (b. 1109) |
| 138082 | December 6 | Death | 1352 – Pope Clement VI (b. 1291) |
| 138083 | December 6 | Death | 1562 – Jan van Scorel Dutch painter (b. 1495) |
| 138084 | December 6 | Death | 1618 – Jacques Davy Duperron, French cardinal (b. 1556) |
| 138085 | December 6 | Death | 1658 – Baltasar Gracián, Spanish priest and author (b. 1601) |
| 138086 | December 6 | Death | 1675 – John Lightfoot, English priest, academic, and scholar (b. 1602) |
| 138087 | December 6 | Death | 1716 – Benedictus Buns, Dutch priest and composer (b. 1642) |
| 138088 | December 6 | Death | 1718 – Nicholas Rowe, English poet and playwright (b. 1674) |
| 138089 | December 6 | Death | 1746 – Lady Grizel Baillie, Scottish poet and songwriter (b. 1665) |
| 138090 | December 6 | Death | 1771 – Giovanni Battista Morgagni, Italian anatomist and pathologist (b. 1682) |