Wicked City (妖獣都市, Yōjū Toshi, lit. “Supernatural Beast City”) is a 1987 Japanese OVA dark fantasy horror film produced by Video Art and Madhouse for Japan Home Video. Based on Black Guard, the first in a series of six novels of the same name by Hideyuki Kikuchi, the film is the solo directorial debut of Yoshiaki Kawajiri, who also served as the character designer, storyboard artist, animation director and a key animator.

The story takes place towards the end of the 20th century and explores the idea that the human world secretly coexists with the demon world with a secret police force known as the Black Guard protecting the boundary.