ANIME LIST
- Obake Zukan
- Oban Star-Racers
- Oban Star-Racers (Dub)
- Obey Me!
- Obey Me! Season 2
- Obey Me! Special - Devildom Family Trip
- Obsolete
- Obsolete (Dub)
- Occult Academy
- Occultic;Nine
- Occultic;Nine (Dub)
- Ocean Waves
- Ocha-ken: Chokotto Monogatari
- Ochame na Futago: Claire Gakuin Monogatari
- Ochamegami Monogatari: Korokoro Pollon
- Ochibi-san
- Ochikobore Fruit Tart
- Ochikobore Fruit Tart (Dub)
- Oda Cinnamon Nobunaga
- Oda Nobuna No Yabou
- Oda Nobuna no Yabou (Dub)
- Odd Taxi
- Odd Taxi (Dub)
- Odd Taxi Movie: In the Woods
- Odekake Kozame
- Odekake Kozame × Chiba-ken Kuro Ajillo
- Odin: Koushi Hansen Starlight
- Odoru Mowai-kun (Dub)
- Oedo wa Nemurenai!
- Offside (TV)
- Ogami Matsugorou
- Oh My God! Earthlings are Insane!
- Oh no, I’m Bound to the Beautiful Valkyrie
- Oh! Edo Rocket
- Oh! Edo Rocket (Dub)
- Oh! Family
- Oh! Super Milk-chan
- Oh! Super Milk-chan (Dub)
- Ohayou! Spank
- Oira Sukeban
- Oira Uchuu no Tankoufu (Dub)
- Oishinbo
- Oishinbo: Kyuukyoku tai Shikou, Chouju Ryouri Taiketsu!!
- Oishinbo: Nichibei Kome Sensou
- Ojamajo Doremi
- Ojamajo Doremi (Dub)
- Ojamajo Doremi Dokkaan!
- Ojamajo Doremi Na-i-sho
- Ojamajo Doremi Sharp
- Ojamajo Doremi Sharp Movie
- Ojamajo Doremi: Heartwarming Theater
- Ojamajo Doremi: Owarai Gekijou
- Ojiisan no Lamp
- Ojisan to Marshmallow
- Ojou to Banken-kun
- Ojousama Sousamou
- Okaimono Panda!
- Okama Hakusho
- Okane ga Nai
- Okashi na Sabaku no Suna to Manu
- Okashi na Tensei
- Okashi na Tensei (Dub)
- Okitsura: Fell in Love with an Okinawan Girl, but I Just Wish I Know What She's Saying
- Okoshiyasu, Chitose-chan
- Okoshiyasu, Chitose-chan Recaps
- Okusama ga Seitokaichou!
- Okusama ga Seitokaichou! OVA
- Okusama ga Seitokaichou!+!
- Okusama wa Mahou Shoujo
- Olympia Kyklos
- Omae Umasou da na
- Omae wa Mada Gunma wo Shiranai
- Omamori Himari
- Omiai Aite wa Oshiego, Tsuyokina, Mondaiji.
- Omishi Mahou Gekijou: Risky★Safety
- Omishi Mahou Gekijou: Risky★Safety (Dub)
- Omoi no Kakera
- Omoi, Omoware, Furi, Furare
- Omoide no Marnie
- On Your Mark
- On Your Mark (Dub)
- Onaka Hime
- Onara Gorou
- Once Upon a Witch's Death
- One Move to Explode the Cultivation Realm
- One Off OVA
- One Outs
- One Piece
- One Piece (Dub)
- One Piece - Dai Gekisen Tokushuu! Hangeki Doumei vs Big Mom
- One Piece 3D2Y
- One Piece 3D2Y (Dub)
- One Piece 3D: Mugiwara Chase
- One Piece Fan Letter
- One Piece Film Z
- One Piece Film: Gold
- One Piece Film: Gold (Dub)
- One Piece Film: Gold Episode 0 - 711 ver.
- One Piece Film: Red
- One Piece Film: Red (Dub)
