Bufo cryptotympanicus is a species of toad in the family Bufonidae. Known commonly as the earless toad, it is found in southern China (Guangxi and Guangdong provinces) and northern Vietnam (on/near Mount Fansipan). Its natural habitats are subtropical or tropical moist lowland forests, rivers, swamps, freshwater marshes, and intermittent freshwater marshes. It is threatened by habitat loss.