ANIME LIST
- One Piece: Yuruganu Seigi! Kaigun no Hokoritakaki Log!
- One Punch Man
- One Punch Man (Dub)
- One Punch Man 2nd Season
- One Punch Man 2nd Season (Dub)
- One Punch Man 2nd Season Commemorative Special
- One Punch Man 2nd Season Specials
- One Punch Man 2nd Season Specials (Dub)
- One Punch Man Specials
- One Punch Man Specials (Dub)
- One Punch Man: Road to Hero
- One Room
- One Room 2nd Season
- One Room Special
- One Room Third Season
- One Room, Hiatari Futsuu, Tenshi-tsuki.
- One Stormy Night Movie
- One Week Friends Kaori no Nikki
- One-Punch Man Season 3
- Onee-chan ga Kita
- Onegai My Melody
- Onegai My Melody: Kuru Kuru Shuffle!
- Onegai Teacher
- Onegai Twins
- Onegai Twins (Dub)
- Onegai Twins EP OVA
- Onegai☆Teacher (Dub)
- Ongaku
- Ongaku Shoujo
- Ongaku Shoujo (TV)
- Oni: Thunder God's Tale
- Oni: Thunder God's Tale (Dub)
- OniAi
- OniAi Specials
- Onigamiden
- Onigamiden (Dub)
- Onigiri
- Onigiri (Dub)
- Onigiri ni Naritai Cogimyun
- Onihei
- Onihei (Dub)
- Onihei: Sono Otoko, Heizou Hasegawa
- Onihei: Sono Otoko, Heizou Hasegawa (Dub)
- Onii-chan Dakedo Ai Sae Areba Kankeinai yo ne! Specials
- Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!!
- Oniichan wa Oshimai!
- Oniichan wa Oshimai! (Uncensored)
- Oniisama e...
- Onikirimaru
- Onimusha
- Onimusha (Dub)
- Onipan!
- Onkyou Seimeitai Noiseman
- Only I Can Command All the Sects in the World
- Only I Can Use Summoning
- Only Yesterday
- Only Yesterday (Dub)
- Onmyo Kaiten Re:Birth Verse
- Onmyoji Rani
- Onmyou Taisenki
- Onmyouji
- Onmyouji (Dub)
- Onna Senshi Efe & Jira: Gude no Monshou
- Onsen Yousei Hakone-chan
- Ontama!
- Onyankopon
- Onyx Equinox
- Ooi! Tonbo
- Ooi! Tonbo (Dub)
- Ooi! Tonbo 2nd Season
- Ooi! Tonbo 2nd Season (Dub)
- Ookami Kakushi
- Ookami Kodomo no Ame to Yuki
- Ookami Kodomo no Ame to Yuki (Dub)
- Ookami Shoujo to Kuro Ouji
- Ookami Shoujo to Kuro Ouji OVA
- Ookami Shounen Ken
- Ookami to Koushinryou II: Ookami to Kohakuiro no Yuuutsu
- Ookami to Koushinryou: Merchant Meets the Wise Wolf
- Ookami to Koushinryou: Merchant Meets the Wise Wolf (Dub)
- Ookami-san to Shichinin no Nakama-tachi
- Ookami-san to Shichinin no Nakama-tachi (Dub)
- Ookamikakushi
- Ookiku Furikabutte
- Ookiku Furikabutte (Dub)
- Ookiku Furikabutte Season 2
- Ookiku Furikabutte – Big Windup!
- Ookiku Furikabutte –The Summer Tournament Chapter
- Oomuro-ke: Dear Sisters
- Oooku
- Oooku (Dub)
- Ooya-san wa Shishunki!
- Ooyukiumi no Kaina
- Ooyukiumi no Kaina: Hoshi no Kenja
- Opening Awakening Favorability System
- Opus.COLORs
- Orange
- Orange (Dub)
- Orange: Mirai
- Ore dake Haireru Kakushi Dungeon
