| Title | Format | Country | Volumes | State |
|---|---|---|---|---|
| Mademoiselle se marie | Manga | France | 18 | Completed |
| Mahō Sensei Negima! ~Magister Negi Magi~魔法先生ネギま!～Magister Negi Magi～ | Manga | Japan | 19 | Completed |
| Mahōka Kōkō no Rettōsei魔法科高校の劣等生 | Light novel | Japan | 24 | Ongoing |
| Maid Sama! | Manga | France | 18 | Completed |
| MAKEN-KI!マケン姫っ! | Manga | Japan | 23 | Ongoing |
| Makenki | Manga | France | 8 | Pause |
| Marine Blue | Manga | France | 4 | Completed |
| Marine Blue no Kaze ni Dakareteマリンブルーの風に抱かれて | Manga | Japan | 4 | Completed |
| La mélancolie de Haruhi Suzumiya | Light novel | France | 1 | Stopped by the editor |
| Miku Bonミクぼん | Manga | Japan | 1 | Completed |
| Mint na bokura | Manga | France | 6 | Completed |
| Momokuriももくり | Manga | Japan | 8 | Completed |
| Mōsō Shōjo Otaku-kei妄想少女オタク系 | Manga | Japan | 7 | Completed |
|
Musaigen no Phantom World ~Myriad Colors Phantom World~ |
Light novel | Japan | 2 | Ongoing |
| My Hero Academia | Manga | France | 17 | Ongoing |
| My Teen Romantic Comedy is Wrong as I expredred | Light novel | France | 3 | Ongoing |
| My-HIME | Manga | France | 5 | Completed |
| Mysterious Girlfriend X | Manga | United States | 3 | Ongoing |