| Title | Format | Country | Volumes | State |
|---|---|---|---|---|
| Octave | Manga | France | 4 | Ongoing |
| Odin Sphere Leifthrasir | Manga | France | 3 | Completed |
| Ogenki Clinic | Manga | France | 3 | Completed |
| Oh my cats ! | Manga | France | 1 | Completed |
| Oh My God! | Manga | France | 5 | Completed |
| Old Boy | Manga | France | 4 | Completed |
| One Piece | Manga | France | 60 | Stopped by the editor |
| One Piece | Manga | France | 98 | Ongoing |
| One-Punch Man | Manga | France | 21 | Ongoing |
| Onibi ~Carnets du Japon invisible~ | Franco-Belgian comics | France | 1 | Completed |
| orange | Manga | France | 7 | Completed |
| Origamix - Theory & Challenges | Explanatory book | France | 1 | Completed |
| Oshi no Ko | Manga | France | 8 | Ongoing |
| Osnira | Franco-Belgian comics | France | 3 | Completed |
| Otaku girls | Manga | France | 7 | Completed |
| ♂taku ♀taku | Manga | France | 4 | Ongoing |
| Otogi Matsuri | Manga | France | 12 | Completed |
| Otome Game ~Tous les Chemins Mènent à la damnation~ | Manga | France | 6 | Ongoing |
| Our summer Holiday | Manga | France | 1 | Completed |
| Our summer love | Manga | France | 1 | Completed |
| Outlaw Players | Global manga | France | 9 | Ongoing |
| Overlord | Manga | France | 13 | Ongoing |
| Overlord | Light novel | France | 4 | Ongoing |