- Omishi Mahou Gekijou: Risky★Safety
- Ongaku
- Osananajimi ga Zettai ni Makenai Love Comedy
- One Punch Man 2nd Season Commemorative Special
- Odd Taxi
- Oshare Kozou wa Hanamaru
- Omoi, Omoware, Furi, Furare
- One Piece: Straw Hat Theater
- Onna Senshi Efe & Jira: Gude no Monshou
- Osomatsu-san 3rd Season
- Ore dake Haireru Kakushi Dungeon
- Otona no Bouguya-san 2nd Season
- Ore no Imouto ga Konnani Kawaii Wake ga Nai Specials
- Ore wa Teppei
- Oh! Super Milk-chan
- Ochikobore Fruit Tart
- One Room Third Season
- Oval x Over
- Obsolete
- Oira Sukeban
- Obake Zukan
- One Punch Man 2nd Season Specials
- Olympia Kyklos
- Oniisama e...
- Ojamajo Doremi Na-i-sho
- Ore wo Suki nano wa Omae dake ka yo: Oretachi no Game Set
- Oshiri Kajiri Mushi
- Osomatsu-kun
- Odin: Koushi Hansen Starlight
- Otaku no Video
- Oruchuban Ebichu
- Oishinbo: Nichibei Kome Sensou
- Oishinbo: Kyuukyoku tai Shikou, Chouju Ryouri Taiketsu!!
- Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta...
- Ozanari Dungeon: Kaze no Tou
- Ou Dorobou Jing in Seventh Heaven
- One Piece Movie 14: Stampede
- Onikirimaru
- Ookamikakushi
- Outlanders
- Oh! Family
- Ojamajo Doremi: Owarai Gekijou
- Oda Cinnamon Nobunaga
- Oshi ga Budoukan Ittekuretara Shinu
- Ore wo Suki nano wa Omae dake ka yo
- Ougon Senshi Gold Lightan
- Osomatsu-san Movie
- Oedo wa Nemurenai!
- Otogizoushi
- Overman King Gainer
- Onegai My Melody: Kuru Kuru Shuffle!
- Onegai My Melody
- Ojamajo Doremi Dokkaan!
- Okoshiyasu, Chitose-chan
- One Punch Man 2nd Season
- Omae Umasou da na
- Otoko Ippiki Gaki Daishou
- Ojiisan no Lamp
- Ookami to Koushinryou II: Ookami to Kohakuiro no Yuuutsu
- Osomatsu-kun (1988)
- Oz no Mahoutsukai (1986)
- Ojamajo Doremi
- Osu!! Karate-bu
- Oushitsu Kyoushi Heine Movie
- Ore ga Suki nano wa Imouto dakedo Imouto ja Nai
- Otona no Bouguya-san (Rimen)
- Onigamiden
- Otogi Juushi Akazukin
- Overlord Movie 2: Shikkoku no Eiyuu
- Overlord: Ple Ple Pleiades - Clementine Toubou-hen
- Otona no Bouguya-san
- Overlord: Ple Ple Pleiades 3
- Osake wa Fuufu ni Natte kara
- Overlord III
- One Room 2nd Season
- Ongaku Shoujo (TV)
- One Piece: Episode of Sorajima
- Oshiete Mahou no Pendulum: Rilu Rilu Fairilu
- Omae wa Mada Gunma wo Shiranai
- Overlord: Ple Ple Pleiades 2
- Overlord II
- Osomatsu-san 2
- Onyankopon
- Ousama Game The Animation
- Omiai Aite wa Oshiego, Tsuyokina, Mondaiji.
- Ojamajo Doremi Sharp
- Ojamajo Doremi Sharp Movie
- Overlord Movie 1: Fushisha no Ou