- Overflow (TV ver.)
- Outburst Dreamer Boys
- Over the Divine Realms
- Ojamajo Doremi: Owarai Gekijou
- Overlord II
- Outbreak Company
- Ojamajo Doremi Sharp Movie
- Outlanders
- Over Drive
- Obsolete
- Ochibi-san
- Owarimonogatari Second Season
- Overlord: Ple Ple Pleiades
- Okko's Inn
- Overman King Gainer
- Overlord: Ple Ple Pleiades 4
- Overlord: Ple Ple Pleiades 2
- Overlord Movie 1: The Undead King
- Overlord: The Sacred Kingdom
- Ozma
- Owari no Seraph: Vampire Shahar
- Omamori Himari
- Overlord III
- Okama Report
