Ichi the Killer is a 2001 Japanese horror yakuza film directed by Takashi Miike, written by Sakichi Sato, and starring Tadanobu Asano and Nao Omori. Based on Hideo Yamamoto's manga series of the same name, its plot follows a psychologically damaged man who is manipulated into assaulting or killing rival faction members of feuding yakuza gangs while being pursued by a sadomasochistic enforcer.

Yakuza film is a popular film genre in Japanese cinema which focuses on the lives and dealings of yakuza, Japanese organized crime syndicates. In the silent film era, depictions of bakuto as sympathetic Robin Hood-like characters were common.