The Kings River slender salamander (Batrachoseps regius) is a species of salamander in the family Plethodontidae. It is endemic to California, in Fresno County in the western United States.
This salamander is endemic to a location in the lower watershed of the Kings River at elevations from 335m-340mm (1,099feet-1,120feetm), and the Summit Meadow location at 2470m (8,100feet) in Kings Canyon National Park, all in the western Sierra Nevada.
Its natural habitats are the temperate Kings River riparian and interior chaparral and woodlands, and the Summit Meadow temperate coniferous forests.
Known from only the two locations, it is an IUCN Red List Vulnerable species.