- Ore ga Suki nano wa Imouto dakedo Imouto ja Nai Specials
- One Piece: Take Aim! The Pirate Baseball King
- One Piece: Adventure of Nebulandia
- Ozanari Dungeon: Kaze no Tou
- Osomatsu-san 3rd Season
- Oshi No Ko Season 2
- One Room Second Season Special
- One Room Third Season
- O Maidens in Your Savage Season
- OniAi Specials
- Overtake!
- Origin: Spirits of the Past
- Orochi, the Eight-Headed Dragon
- Okko's Inn
- Overlord Movie 2: The Dark Hero
- Ojisan in Another World
- Original Dirty Pair: Flight 005 Conspiracy
- Okko's Inn
- One Hundred Thousand Years of Qi Refining
- Otherside Picnic
- Operation Han-Gyaku-Sei Million Arthur 2nd Season
- Our love has always been 10 centimeters apart.
- Otaku Elf
- Operation Han-Gyaku-Sei Million Arthur
