Hobby, Travel, Sports Series
- Always 3 chome no Yuhi
- [Oshi no ko]
- Ookami kodomo no Ame to Yuki (Wolf Children)
- Okiku Furikabutte
- Okasan to Issho
- Curious George
- Touch Detective Mushroom Garden
- Oshiri Tantei
- Ojarumaru
- Osomatsu-san
- Ochoyan
- Odekake Kozame
- Onegai Teacher (Please Teacher!)
- Onegai My Melody
- Ghostbook
- Opanchu Usagi
- Omae Umasodana
- Only Yesterday
- Ojamajo
- A Girl & Her Guard Dog
- Ookami-san Series
- The Diary of Ochibi-san
- Otona Anime
- Orix Buffaloes
- Olympic
- Orange Page
- Online Game
- Only Mercedes
- Ooi! Tombo
- Overlord
- Otokomeshi
- Ore no Imoto ga Kon nani Kawaii wake ga nai
- Ore no nonai sentakushi ga gakuen Love comedy wo Zenryoku de Jyama Shiteiru
- Otona no Oshare Techo
- Otona No Nurie
- Otona no Kagaku Magazine
- Oh-oku ( Danjo Gyakuten)
- Omoide no Marnie (When Marnie Was There)
- Onsen Musume
- Okami to Koshinryo (Wolf and Spice)
- Otoko wa Tsuraiyo
- Oishinbo
- Omotesandou Kouko Gassyobu!
- Onihei Hankacho
- Onimusha