Zombie Ass: Toilet of the Dead (ゾンビアス, Zonbiasu) is a 2011 Japanese comedy horror film directed by Noboru Iguchi and written by Iguchi, Ao Murata and Jun Tsugita from a story by Tadayoshi Kubo. Starring Arisa Nakamura, Asana Mamoru and Mayu Sugano, the plot follows a pretty young karate student (Nakamura) who, following her younger sister's suicide, goes on a camping trip with friends. Their fun is quickly interrupted by the arrival of feces covered zombies.

It had its world premiere at Fantastic Fest film festival in Austin, Texas in September 2011, and was theatrically released in Japan in February 2012.