- The Mischevious Twins
- Little Pollon
- Ochibi-san
- Dropout Idol Fruit Tart
- Oda Cinnamon Nobunaga
- The Ambition of Oda Nobuna
- A Gentle Noble's Vacation Recommendation
- Odd Taxi
- Odd Taxi Movie: In the Woods
- Little Shark's Outings
- Little Shark's Outings
- Little Shark's Outings x Nights with a Cat Manner Movie
- Odin: Starlight Mutiny
- Oedo wa Nemurenai!
- Offside (TV)
- Ogami Matsugorou
- Oh! Edo Rocket
- Ohayou! Spank (Movie)
- Rail of the Star: A True Story of Children
- Rainbow Samurai [RAW]
- Welcome to Magical Girl Village (Illegally Occupied)
- Oira Sukeban
- Mighty Space Miners
- Oishinbo
- Oishinbo: The Japan-America Rice War
- Magical DoReMi
- Useless Witch Doremi Kaboom!
- Magical DoReMi Na-i-sho
- Magical DoReMi: Sharp
- Ojamajo Doremi Sharp Movie
- Ojamajo Doremi: Owarai Gekijou
- Ojamanga Yamada-kun (Movie)
- Ojisan and Marshmallow
- Ojisan and Marshmallow Episode 13: Hige-san and Marshmallow
- A Girl & Her Guard Dog
- Debutante Detective Corps
- Okaimono Panda!
- Okama Report
- No Money
- No Money Omake episodes
- Okashi na Sabaku no Suna to Manu
- Sweet Reincarnation
- Okitsura: Fell in Love with an Okinawan Girl, but I Just Wish I Know What She's Saying
- Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village into the Strongest Fortified City
- Okoshiyasu, Chitose-chan
- Okoshiyasu, Chitose-chan Recaps
- Okubyou na Venus
- My Wife is the Student Council President!
- My Wife is the Student Council President OVA
- My Wife is the Student Council President!+
- My Wife is a High School Girl
- Madam is a Magical Girl
- OL Kaizou Kouza
- You Don't Know Gunma Yet
- You Don't Know Gunma Yet
- Omamori Himari
- My Matchmaking Partner Is My Student, An Aggressive Troublemaker
- Omoi no Kakera
- Love Me, Love Me Not
- When Marnie Was There
- Only Yesterday
- Onara Goro
- One Off
- One Outs
- One Piece
- One Piece - Wano Kuni SP
- One Piece 3D: Gekisou! Trap Coaster
- One Piece 3D: Strawhat Chase
- One Piece 3D2Y: 15th Anniversary
- One Piece Egghead Arc Recap
- One Piece Fan Letter
- One Piece: The Movie 13 - Film: Gold
- ONE PIECE FILM GOLD 〜episode 0〜
- One Piece Film: Red
- One Piece: The Movie 10 - Strong World
- One Piece Film: Strong World Episode 0
- One Piece: The Movie 12 - Film Z
- One Piece Movie 1
- One Piece: Clockwork Island Adventure
- One Piece: Chopper Kingdom of Strange Animal Island
- One Piece: Dead End
- One Piece: The Curse of the Sacred Sword
- One Piece: Baron Omatsuri and the Secret Island
- One Piece Movie 7: Karakuri-jou no Mecha Kyohei
- One Piece: The Movie 8 - Adventures in Alabasta
- One Piece Movie 9: Episode of Chopper Plus - Fuyu ni Saku, Kiseki no Sakura
- One Piece Recap
- One Piece: Adventure of Nebulandia
- One Piece: The Log of the Turbulent Revolution - The Revolutionary Army Maneuvers in Secret!
- One Piece: Barto's Secret Room
- One Piece: Recapping Fierce Fights! The Countercharge Alliance vs. Big Mom
- One Piece: Recapping Fierce Fights! Zoro vs. a Lead Performer!
- One Piece: A Project to Fully Enjoy! `Surgeon of Death` Trafalgar Law
- One Piece: A Comprehensive Anatomy! The Legend of Kozuki Oden!
- One Piece: Dr. Chopper's Adventure Checkup - The Ballad of a Father and Daughter
- One Piece: Dr. Chopper's Adventure Checkup - The Proud Dream of the Giants
- One Piece: Dr. Chopper's Adventure Checkup - Good Friends at a Crossroad
- One Piece: Episode of East Blue
- One Piece: Episode of Luffy - Hand Island Adventure
- One Piece: Episode of Merry - The Tale of One More Friend
- One Piece: Episode of Nami - Tears of a Navigator and the Bonds of Friends
- One Piece: Episode of Sabo - The Three Brothers' Bond
- One Piece: Episode of Skypiea
- One Piece: Glorious Island
- One Piece Log: Fish-Man Island Saga
- One Piece: Heart of Gold
- One Piece: The Log of the Rivalry! The Straw Hats vs. Cipher Pol
- One Piece: Django's Dance Carnival
- One Piece: Making History! The Turbulent Old and New Four Emperors!
- One Piece Special: Protect! The Last Great Performance
- One Piece: Take Aim! The Pirate Baseball King
- One Piece Special: The Detective Memoirs of Chief Straw Hat Luffy
- One Piece Special: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
- One Piece: Romance Dawn Story
- One Piece: Defeat the Pirate Ganzack!
- One Piece: The Movie 14 - Stampede
- One Piece Special: Adventure in the Ocean's Navel
- One Piece: Soccer King of Dreams
- One Piece: Unwavering Justice! The Navy's Proud Log!
- One Pound Gospel
- One Punch Man
- One Punch Man 2nd Season
- One Punch Man 2nd Season Commemorative Special
- One Punch Man 2nd Season Specials
- One-Punch Man Season 3
- One Punch Man Specials
- One Punch Man 3: Specials
- One Punch Man: Road to Hero
- One Room
- One Room Second Season
- One Room Second Season Special
- One Room Third Season
- Studio Apartment, Good Lighting, Angel Included
- One: Kagayaku Kisetsu e
- Oneechan ga Kita
- Oneechan ga Kita: Hajimete no… Kitaa!
