| Number | Poster | Title | Total Episode | Status | Type | Detail |
|---|---|---|---|---|---|---|
| 6925 | |
Obey Me! Special - Devildom Family Trip | 1 | Completed | ONA | |
| 6926 | |
Obsolete | 12 | Ongoing | ONA | |
| 6927 | |
Occult Academy | 13 | Completed | TV Series | |
| 6928 | |
Occultic;Nine | 12 | Completed | Fall 2016 Anime | |
| 6929 | |
Ocean Waves | 1 | Completed | Episodes | |
| 6930 | |
Ocha-ken: Chokotto Monogatari | 26 | Completed | TV Series | |
| 6931 | |
Ochame na Futago: Claire Gakuin Monogatari | 26 | Completed | TV Series | |
| 6932 | |
Ochamegami Monogatari: Korokoro Pollon | 10 | Completed | TV Series | |
| 6933 | |
Ochibi-san | 24 | Ongoing | Fall 2023 Anime | |
| 6934 | |
Ochikobore Fruit Tart | 12 | Ongoing | Fall 2020 Anime | |
| 6935 | |
Oda Cinnamon Nobunaga | 12 | Ongoing | Winter 2020 Anime | |
| 6936 | |
Oda Nobuna No Yabou | 12 | Completed | TV Series | |
| 6937 | |
Odd Taxi | 13 | Ongoing | Spring 2021 Anime | |
| 6938 | |
Odd Taxi Movie: In the Woods | 1 | Completed | Movie | |
| 6939 | |
Odekake Kozame | 60 | Ongoing | ONA | |
| 6940 | |
Odekake Kozame × Chiba-ken Kuro Ajillo | 1 | Completed | Special | |
| 6941 | |
Odin: Koushi Hansen Starlight | 1 | Completed | Movie | |
| 6942 | |
Oedo wa Nemurenai! | 1 | Completed | OVA | |
| 6943 | |
Offside (TV) | 39 | Completed | TV Series | |
| 6944 | |
Oh! Edo Rocket | 26 | Completed | TV Series | |
| 6945 | |
Oh! Family | 3 | Completed | TV Series | |
| 6946 | |
Oh! Super Milk-chan | 13 | Completed | TV Series | |
| 6947 | |
Ohayou! Spank | 50 | Completed | ONA | |
| 6948 | |
Oide yo Mahou Shoujo Mura (Fuhou Senkyo) | 7 | Ongoing | TV Show | |
| 6949 | |
Oira Sukeban | 1 | Completed | OVA |