Wild Zero is a 1999 Japanese comedy horror film directed by Tetsuro Takeuchi. It stars Masashi Endō as Ace, a fan of the Japanese rock power trio Guitar Wolf (who star as themselves). After assisting the group, the band's eponymous vocalist makes Ace his blood brother and gives him a whistle to blow during times of trouble. Ace later meets Tobio (Kwancharu Shitichai) during a gas station robbery. The group later finds themselves in the middle of a zombie outbreak.

Wild Zero was shown as part of the Midnight Madness series at the 2000 Toronto International Film Festival.