| Ochikobore Fruit Tart | 2020 | Anime | 0.0 |
| Odd Taxi | 2021 | Anime | 4.8 |
| Ojou to Banken-kun | 2023 | Anime | 5.0 |
| Okashi na Tensei | 2023 | Anime | 4.3 |
| One Room 3 | 2020 | Anime | 5.0 |
| Oniichan wa Oshimai! | 2023 | Anime | 4.5 |
| Ooyukiumi no Kaina | 2023 | Anime | 5.0 |
TV | Ooyukiumi no Kaina: Hoshi no Kenja | 2023 | Película | 0.0 |
| Ore dake Haireru Kakushi Dungeon | 2021 | Anime | 4.6 |
| Ore dake Level Up na Ken (Solo Leveling) | 2024 | Anime | 4.7 |
| Orient | 2022 | Anime | 5.0 |
| Oroka na Tenshi wa Akuma to Odoru | 2024 | Anime | 3.5 |
| Osananajimi ga Zettai ni Makenai Love Come | 2021 | Anime | 3.8 |
| Oshi no Ko | 2023 | Anime | 4.3 |
| Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta… X | 2021 | Anime | 5.0 |
| Otome Game Sekai wa Mob ni Kibishii Sekai desu | 2022 | Anime | 4.5 |
| Otona no Bouguya-san 2 | 2021 | Anime | 0.0 |
| Otonari ni Ginga | 2023 | Anime | 5.0 |
| Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken | 2023 | Anime | 4.8 |
| Ousama Ranking | 2021 | Anime | 4.5 |
| Ousama Ranking: Yuuki no Takarabako | 2023 | Anime | 5.0 |
| Overlord IV | 2022 | Anime | 4.9 |
| Overtake! | 2023 | Anime | 4.0 |
TV | One Piece Film: Red | 2022 | Película | 4.1 |