- Occult Academy Specials
- Ochibi-san
- One-Million Year Trip: Bander Book
- Oh! My Goddess (2011) OVA
- Our Dating Story: The Experienced You and The Inexperienced Me, Kimizero
- Once Upon A Time
- Our Home's Fox Deity
- One Week Friends
- On A Paper Crane: Tomoko's Adventure
- One Step Toward Freedom
- Oh! Edo Rocket
- Obey Me!
- Occultic;Nine
- Our Last Crusade or the Rise of a New World Season 2
- Obsolete
- Obake Zukan
- Outlaw Star
- Okama Report
- Ojamajo Doremi: Owarai Gekijou
- OL Kaizou Kouza
- One Off
- Ojisan and Marshmallow Episode 13: Hige-san and Marshmallow
- Ojamajo Doremi Sharp Movie
- Ojamanga Yamada-kun (Movie)
