Japanese Movie Series Beginning with O
- Odoru Daisosasen Series
- Oh-oku ( Danjo Gyakuten)
- Oh-oku / Ooku
- Ohitori sama
- Okaeri Mone
- Okami Shojo to Kuro Oji
- Okasan to Issho
- Okusama wa Toriatsukaichui
- Omae wa mada Gunma wo shiranai
- Omoi, Omoware, Furi, Furare
- Omoide no Marnie (When Marnie Was There)
- Omoshiro Nankyoku Ryorinin
- One Piece
- Only Yesterday
- Ookami kodomo no Ame to Yuki (Wolf Children)
- orange
- Ore monogatari!!
- Ore no Sora Series
- Oshi ga Budokan Ittekuretara Shinu
- Osomatsu-san
- Ossan's Love
- Otaku ni Koi wa Muzukashii
- Otoko wa Tsuraiyo
- Otokotachi no Yamato
- Ouran Koko Host Club