The white-eared pocket mouse (Perognathus alticolus) is a species of rodent in the family Heteromyidae. It is endemic to the San Bernardino Mountains and the Tehachapi Mountains of southern California in the United States. There are two subspecies of P. alticolus in California, P. a. alticolus and P. a. inexpectatus, both of which are considered species of special concern by the California Department of Fish and Wildlife.