| 1997 | Onibi |
| 2007 | Oni no kaen |
| 2008 | Oneechanbara: The Movie |
| 2006 | Oneechan, otôto to iku! |
| 2002 | One piece: Yume no sakka-o! |
| 2005 | One piece: Omatsuri danshaku to himitsu no shima |
| 2001 | One piece: Nejimaki shima no bôken |
| 2004 | One piece: Mezase! Kaizoku yakyu o |
| 2006 | One piece: Karakuri shiro no Mecha Kyohei |
| 2001 | One piece: Jango no dansu kanibaru |
| 2008 | One piece: Episodo obu choppa Fuyu ni saku, kiseki no sakura |
| 2007 | One Piece: Episode of Alabaster - Sabaku no Ojou to Kaizoku Tachi |
| 1999 | One Piece! |
| 2000 | One piece the movie: Kaisokuou ni ore wa naru |
| 2005 | Onaji tsuki wo miteiru |
| 1995 | On Your Mark |
| 1999 | Omocha |
| 2004 | OLDK. |
| 1990 | OL renzoku rape: kyonyu musaboru |
| 2008 | Departures |
| 2001 | Okujô no tsuribito |
| 1992 | Okoge |
| 1996 | Okke-ke Bibirobos |
| 2006 | Okaruto tanteidan: Shi-ningyô no hakaba |
| 1995 | Okaeri |
| 2008 | Oka wo koete |
| 1993 | Ojosama deka |
| 2006 | Ojisan tengoku |
| 1996 | Oishinbo |
| 1991 | Oishii kekkon |