Ninja Assassin
- Tahun: 2009
- Negara: France, Germany, United States of America
- Genre: Action, Adventure, Thriller
- Studio: Legendary Pictures, Dark Castle Entertainment, Silver Pictures, Anarchos Productions, Rocklock Films, Studio Babelsberg, Warner Bros. Pictures, Hermanas Wachowski, StudioCanal
- Kata kunci: martial arts, assassin, assassination, ninja fighter, gore, stick fighting, sensei, revenge, ninja, bloody fight, chop socky, ninjutsu, kusarigama
- Pengarah: James McTeigue
- Pelakon: 비, Naomie Harris, Sung Kang, Randall Duk Kim, Rick Yune, Yuki Iwamoto