The Honshū wolf (Canis lupus hodophilax), known in Japan as the Japanese wolf, yamainu, or simply wolf, is one of the two extinct subspecies of the gray wolf once endemic to the islands of Japan. The Honshū wolf occupied the islands of Honshū, Shikoku, and Kyūshū in Japan. The other subspecies was the Hokkaidō wolf, native to the island of Hokkaidō.