| 142921 | December 19 | Birth | 1983 – Laura Pomeroy, Canadian swimmer |
| 142922 | December 19 | Birth | 1983 – Matt Stajan, Canadian ice hockey player |
| 142923 | December 19 | Birth | 1984 – Ian Kennedy, American baseball player |
| 142924 | December 19 | Birth | 1985 – Gary Cahill, English footballer |
| 142925 | December 19 | Birth | 1985 – Neil Kilkenny, English-Australian footballer |
| 142926 | December 19 | Birth | 1985 – Sally Kipyego, Kenyan runner |
| 142927 | December 19 | Birth | 1985 – Dan Logan, English bass player (The Kooks, Cat the Dog, and The Ordinary Boys) |
| 142928 | December 19 | Birth | 1985 – Lady Sovereign, English rapper |
| 142929 | December 19 | Birth | 1986 – Ryan Babel, Dutch footballer |
| 142930 | December 19 | Birth | 1986 – Lazaros Christodoulopoulos, Greek footballer |
| 142931 | December 19 | Birth | 1986 – Zuzana Hejnová, Czech hurdler |
| 142932 | December 19 | Birth | 1986 – Miguel Lopes, Portuguese footballer |
| 142933 | December 19 | Birth | 1986 – Calvin Andrew, English footballer |
| 142934 | December 19 | Birth | 1987 – Cédric Baseya, French-Congolese footballer |
| 142935 | December 19 | Birth | 1987 – Karim Benzema, French footballer |
| 142936 | December 19 | Birth | 1987 – Slater Young, Filipino-Chinese actor and host |
| 142937 | December 19 | Birth | 1988 – Paulina Gretzky, American singer and actress |
| 142938 | December 19 | Birth | 1988 – Alexis Sánchez, Chilean footballer |
| 142939 | December 19 | Birth | 1988 – Peter Winn, English footballer |
| 142940 | December 19 | Birth | 1989 – Valdimar Bergstað, Icelandic horse rider |
| 142941 | December 19 | Birth | 1989 – Yong Jun-hyung, South Korean singer-songwriter, rapper and producer (Beast and Xing) |
| 142942 | December 19 | Birth | 1989 – Michał Masłowski, Polish footballer |
| 142943 | December 19 | Birth | 1989 – Hamza Riazuddin, English cricketer |
| 142944 | December 19 | Birth | 1990 – Greg Bretz, American snowboarder |
| 142945 | December 19 | Birth | 1990 – Sally Fitzgibbons, Australian surfer |
| 142946 | December 19 | Birth | 1991 – Jorge Blanco, Mexican-Argentinian actor and singer |
| 142947 | December 19 | Birth | 1991 – Declan Galbraith, English singer-songwriter |
| 142948 | December 19 | Birth | 1991 – Sumire Uesaka, Japanese voice actress and singer |
| 142949 | December 19 | Birth | 1992 – Iker Muniain, Spanish footballer |
| 142950 | December 19 | Birth | 1992 – Raphael Spiegel, Swiss footballer |