Mount Yoko may refer to: Mount Yoko (Hidaka), in Shinhidaka, Hokkaidō Mount Yoko (Northern Yatsugatake), in the Northern Yatsugatake Volcanic Group of the Yatsugatake Mountains on Honshū Mount Yoko (Southern Yatsugatake), in the Southern Yatsugatake Volcanic Group of the Yatsugatake Mountains on Honshū