O
- Obake Zukan TV Subbed (22)
- Oban Star-Racers TV Dubbed (26)
- Oban Star-Racers TV Subbed (26)
- Obey Me! TV Subbed (24)
- Oblivion Island: Haruka and the Magic Mirror Movie (2)
- Occult Academy TV Subbed (19)
- Occultic;Nine TV Subbed (12)
- Ochibi-san TV Subbed (11)
- Ochikobore Fruit Tart TV Subbed (12)
- Oda Cinnamon Nobunaga TV Subbed (12)
- Odd Taxi Movie (1)
- Odd Taxi TV Subbed (13)
- Odekake Kozame TV Subbed (28)
- Oh! Edo Rocket TV Dubbed (26)
- Oishinbo Movies (2)
- Ojamajo Doremi All Seasons TV Subbed (201)
- Ojamajo Doremi Movies + Na-i-sho Extra (14)
- Ojamajo Doremi Sharp Movie (1)
- Ojisan to Marshmallow TV Subbed + Special (13)
- Okamisan and Seven Companions TV Dubbed (12)
- Okamisan and Seven Companions TV Subbed (12)
- Okoshiyasu, Chitose-chan OVAs Subbed (3)
- Okoshiyasu Chitose-chan TV Subbed (21)
- Olympia Kyklos TV Subbed (24)
- Omae wa Mada Gunma wo Shiranai TV Subbed (12)
- O Maidens in Your Savage Season TV Subbed (12)
- Omamori Himari TV Subbed (12)
- On a Lustful Night Mingling with a Priest... TV Subbed (4)
- Onara Gorou TV Subbed (10)
- On a Stormy Night. Secret Friends TV Subbed (26)
- On a Stormy Night TV Subbed (1)
- One: To a Shining Season OVAs Subbed (4)
- One Day A Letter Arrives from the Dog Kingdom Movie (1)
- Onee-chan ga Kita TV Subbed (13)
- Onegai My Melody TV Subbed (104)
- Onegai Teacher TV Dubbed (39)
- Onegai Teacher TV Subbed (13)
- Onegai Twins TV Dubbed (12)
- Onegai Twins TV Subbed + OVA (13)
- One Off TV Subbed (2)
- One Outs TV Subbed (21)
- One Piece Movies (20)
- One Piece TV Dubbed (397)
- One Piece TV Subbed (1095)
- One Punch Man Specials (13)
- One Punch Man TV Subbed (24)
- One Room. All episodes TV Subbed (38)
- One Week Friends TV Subbed + Specials (17)
- Ongaku Shoujo TV Subbed + OVA (13)
- OniAi TV Subbed + Specials (18)
- Onigamiden Movie (2)
- Onigiri TV Subbed (13)
- Onimai. I'm Now Your Sister! TV Subbed (12)
- Onipan! TV Subbed (11)
- Online Free HD (0)
- Only Yesterday Movie (1)
- Onmyou Taisenki TV Subbed (52)
- Onsen Yousei Hakone-chan TV Subbed (13)
- Onyankopon TV Subbed (12)
- On Your Mark Movie (1)
- Ookami Kakushi TV Subbed (12)
- Ooyasan wa Shishunki! TV Subbed (12)
- Operation Grand Prix TV Dubbed (40)
- Opus Colors TV Subbed (12)
- Orange TV Subbed (14)
- Oreca Battle TV Subbed (51)
- Ore dake Haireru Kakushi Dungeon TV Subbed + Doki Doki! Mini Mini! (26)
- Ore Monogatari!! TV Subbed (24)
- Oreshura TV Subbed (13)
- Ore Tsushima TV Subbed (9)
- Ore wo Suki nano wa Omae dake ka yo TV Subbed (12)
- Orient TV Subbed (24)
- Origin: Spirits of the Past Movie (1)
- or Maybe Half? Movie (1)
- Oruchuban Ebichu TV Subbed (12)
- Osamake: Romcom Where The Childhood Friend Won't Lose TV Subbed (12)
- Oshiete Fairilu: Mahou no Pendulum OVAs Subbed (3)
- Oshi no Ko / My Star TV Subbed (11)
- Osomatsu-san TV Subbed (84)
- Otherworldly Evil Monarch / Yiren Jun Moxie TV Subbed (1)
- Otogizoushi TV Subbed (26)
- Otome Nadeshiko Koi Techou Movie (1)
- Otome wa Boku ni Koishiteru: Trinkle Stars The Animation TV Subbed (1)
- Otome wa Boku Ni Koishiteru TV Subbed + Futari no Elder OVAs (16)
- Otona Joshi no Anime Time TV Subbed (4)
- Otona no Bouguya-san All Episodes TV Subbed (27)
- Ouran High School Host Club TV Dubbed (26)
- Ouran High School Host Club TV Subbed (26)
- Our Home's Fox Deity TV Subbed + Specials (29)
- Our Last Crusade or the Rise of a New World TV Subbed (12)
- Our Love Has Always Been 10 Centimeters Apart TV Subbed (6)
- Ousama Ranking. Yuuki no Takarabako TV Dubbed (8)
- Ousama Ranking TV Dubbed (1)
- Ousama Ranking TV Subbed (33)
- Outbreak Company TV Subbed (12)
- Outburst Dreamer Boys TV Subbed (11)
- Outlanders Movie (1)
- Outlaw Star TV Dubbed (26)
- Outlaw Star TV Subbed (26)
- OverDrive TV Subbed (26)
- Overlord Movies (2)
- Overlord Ple Ple Pleiades TV Subbed (37)
- Overlord TV Subbed (52)
- Overman King Gainer TV Dubbed (26)
- Overman King Gainer TV Subbed (26)
- Overtake! TV Subbed (5)
- Owari no Seraph Special + Extra (12)
- Owari no Seraph TV Dubbed (12)
- Owari no Seraph TV Subbed (25)
- Ozmafia!! TV Subbed (12)
- Ozuma OVAs Subbed (6)
