Occult Academy [Seikimatsu Occult Gakuin]
| Opening | Flying Humanoid |
| Ending | Kimi ga Iru Basho |
Oh! Edo Rocket
| Opening | Oh Edo Nagareboshi IV |
| Ending | 100 miles ~ Niji wo Oikakete |
| Ending 2 | I Got Rhythm |
Okamisan
| Opening | Ready Go! |
| Ending | Akazukin-chan Goyoujin |
Ookami-san to Shichinin no Nakama-tachi
| Opening | Ready Go! |
| Ending | Akazukin-chan Goyoujin |
Otoboku - maidens are falling for me! [Otome wa Boku ni Koishiteru]
| Opening | Love Power |
| Ending | Beautiful Day |
Otogi Zoshi
| Opening | Zen |
| Ending | Ashita wa Kyou to Onaji Mirai |
| Ending 2 | Cry Baby |
Otome Youkai Zakuro
| Ending | Hatsukoi wa Zakuro iro |
Our Home's Fox Deity [Wagaya no Oinarisama]
Ouran High School Host Club [Ouran Koukou Host Club]
| Opening | Sakura Kiss |
| Ending | Shissou |
Over Drive
| Opening | WINDER ~Boku wa Koko ni iru~ |
| Ending | Saihate no Parade |
| Ending 2 | Koi Suzumi |