December
Given the number of holidays in December, you would probably expect to find quite a few birthdays this month, and your expectations would be met, especially on those two very special days in December which every anime couple seems to look forward to – Christmas Eve and Christmas itself.
| Date | Character | Series |
| 1 | Chao Lingshen | Mahou Sensei Negima |
| Aoyama Motoko | Love Hina | |
| 3 | Sanzenin Nagi | Hayate the Combat Butler |
| Jet Black | Cowboy Bebop | |
| 4 | Asuka Langley Soryu | Neon Genesis Evangelion |
| Sarah MacDougal | Love Hina | |
| 5 | Lelouch Lamperouge | Code Geass |
| Kino Makoto (Sailor Jupiter) | Sailor Moon | |
| 6 | Narutaki Fuka | Mahou Sensei Negima |
| Narutaki Fumika | Mahou Sensei Negima | |
| Amano Mishio | Kanon | |
| 7 | Kobayashi Hatoko | Angelic Layer |
| Inagawa Yuu | Comic Party | |
| 8 | Katsuragi Misato | Neon Genesis Evangelion |
| 9 | Takamura Keiki | Uta Kata |
| 14 | Ushikubo Sakura | Special A |
| Ciel Phantomhive | Kuroshitsuji | |
| 19 | Fujino Shizuru | Mai HiME |
| 20 | Sakuya | Sister Princess |
| 21 | Paiway Underberg | Vandread |
| 23 | Minase Nayuki | Kanon |
| 24 | Maria | Hayate the Combat Butler |
| Chidori Kaname | Full Metal Panic! | |
| Teletha Testarossa | Full Metal Panic! | |
| Sano Izumi | Hana Kimi | |
| Jinno | Gakuen Alice | |
| 25 | Magno Vivan | Vandread |
| Amane Misa | Death Note | |
| Tachibana Ichika | Uta Kata | |
| Kuroki Manatsu | Uta Kata | |
| 26 | Suzuhara Touji | Neon Genesis Evangelion |
| 31 | Yanagida Ichino | Battle Athletes |
| Minatsuki Saya | Black Cat |
