  | Oda Nobunaga (1998) | J-Movie | 1998 |
 TV | Oh My Jump! | J-Drama | 2018 |
 | Ohikkoshi | J-Movie | 1993 |
 | Oldboy | K-Movie | 2003 |
 | On Your Wedding Day | K-Movie | 2018 |
 | Once Upon a Time | CH-Movie | 2017 |
 | Once Upon a Time in High School | K-Movie | 2004 |
 | One In A Hundred Thousand | J-Movie | 2020 |
 | Oneechanbara 2: The VorteX | J-Movie | 2009 |
 | Oneechanbara | J-Movie | 2008 |
 | Ookami Shoujo to Kuro Ouji | J-Movie | 2016 |
 | Oppai Volleyball | J-Movie | 2009 |
 | Orange | J-Movie | 2015 |
 | Ore Monogatari!! | J-Movie | 2015 |
 TV | Ore no Sukato, Doko Itta? | J-Drama | 2019 |
 TV | Orient Kyuuko Satsujin Jiken | J-Drama | 2015 |
 | Osama to Boku | J-Movie | 2012 |
 TV | Osozaki no Himawari | J-Drama | 2012 |
 | Our Shining Days | CH-Movie | 2017 |
 TV | Ouran High School Host Club | J-Drama | 2011 |
 | Ouran High School Host Club: La Película | J-Movie | 2012 |
 | Ousama Game | J-Movie | 2011 |
