- I Parry Everything
- ORESUKI Are you the only one who loves me?
- Ore wo Suki nano wa Omae dake ka yo: Oretachi no Game Set
- I, Tsushima
- I, Tsushima (ONA)
- Gonna be the Twin-Tail!!
- Oreca Battle
- Orenchi no Furo Jijou
- ORESUKI Are you the only one who loves me: Game Over
- We Without Wings – Under the Innocent Sky
- Orient
- Orient Part 2
- The Foolish Angel Dances with the Devil
- Fish in the Trap
- Love is Like a Cocktail
- Osake wa Fuufu ni Natte kara: Yuzu Atsukan
- Osamake: Romcom Where The Childhood Friend Won't Lose!
- You Can't Be In a Rom-Com with Your Childhood Friends!
- If My Favorite Pop Idol Made It to the Budokan, I Would Die
- My Star: Season 2
- My Star: Specials
- Oshiete Mahou no Pendulum: Rilu Rilu Fairilu
- Please tell me! Galko-chan
- Please tell me! Galko-chan OVA
- Osomatsu-kun (1988)
- Mr. Osomatsu
- Mr. Osomatsu 2
- Osomatsu-san 3rd Season
- Mr. Osomatsu 4
- Osomatsu-san 4th Season: Sou, Shuu, Hen
- Mr. Osomatsu the Movie
- Go!! Karate Club
- Gals Can't Be Kind to Otaku!?
- Otaku no Seiza
- Otaku no Video
- Weather Report Girl
- Fairy Musketeers
- Angel Tales
- Angel Tales
- Otogi Zoshi: The Legend of Magatama
- Princess Connection
- My Next Life as a Villainess: All Routes Lead to Doom!
- Hamefura Movie
- Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta... OVA
- My Next Life as a Villainess: All Routes Lead to Doom! 2nd Season
- Trapped in a Dating Sim: The World of Otome Games is Tough for Mobs
- Zakuro
- Otome Youkai Zakuro Picture Drama
- Armor Shop for Ladies & Gentlemen
- Otona no Bouguya-san 2nd Season
- A Galaxy Next Door
- The Angel Next Door Spoils Me Rotten
- The Angel Next Door Spoils Me Rotten Season 2
- Jing: King of Bandits
- Golden Warrior: The Gold Lightan
- The Brave of Gold Goldran
- Ouran High School Host Club
- Royal Space Force: The Wings of Honneamise
- King's Game
- Ranking of Kings
- Ranking of Kings: The Treasure Chest of Courage
- The Royal Tutor
- The Royal Tutor Movie
- Outbreak Company
- Outlanders
- Oval x Over
- Over Drive
- Overflow (TV ver.)
- Overflow (Uncensored)
- Overlord
- Overlord II
- Overlord III
- Overlord IV
- Overlord Movie 1: The Undead King
- Overlord Movie 2: The Dark Hero
- Overlord: The Sacred Kingdom
- Overlord: Ple Ple Pleiades
- Overlord: Ple Ple Pleiades - Clementine Toubou-hen
- Overlord: Ple Ple Pleiades 2
- Overlord: Ple Ple Pleiades 3
- Overlord: Ple Ple Pleiades 4
- Overman King Gainer
- Overtake!
- Seraph of the Endless
- Seraph of the Endless
- Seraph of the End: Vampire Reign
- Owari no Seraph: Vampire Shahar
- Seraph of the End: Battle in Nagoya
- Owarimonogatari
- Owarimonogatari Second Season
- The Wonderful Wizard of Oz
- Ozanari Dungeon: Kaze no Tou
- Ozma
- Ozmafia!!
- Pachislo Kizoku Gin
- Pale Cocoon
- A Tree of Palme
- Pan de Peace!
- Panda no Daibouken
- PandoraHearts
- Pandora Hearts Omake
- Pandora to Akubi
- Pani Poni Dash!
- Paniponi Dash!: Danjite Okonaeba Kishin mo Kore wo Saku
- Pankunchi
- Pants no Ana: Mambo de Ganbo!
- Panty & Stocking in Sanitarybox
- Panty & Stocking with Garterbelt
- Panyo Panyo Di Gi Charat
- Panzer Dragoon
- Papa Mama Bye Bye
- Listen to Me, Girls. I Am Your Father!
- Papa no Iukoto wo Kikinasai! OVA
- Papa to Kiss in the Dark
- Papillon Rose
- Paprika
- Paradise Kiss
- Paradox Live the Animation
- Parasite Dolls
- Ya Boy Kongming!
- Ya Boy Kongming!: Road to Summer Sonia
- Isabelle of Paris
- Paroru's Future Island
- The Healer Who Was Banished From His Party, Is, in Fact, the Strongest
- Pastel Life
- Pastel Memories
- Patalliro!
- Patapata Hikousen no Bouken
- Paulette's Chair
- Peace Maker Kurogane
- PEACE MAKER KUROGANE – Belief & Friend
- PEACE MAKER KUROGANE – Belief & Friend
- Peach Boy Riverside
- Peach Girl: Super Pop Love Hurricane
- Pelican Road Club Caroucha
- Penguin Highway
