Chlosyne gabbii, or Gabb's checkerspot, is a butterfly from the family Nymphalidae.
Chlosyne gabbii has a wingspan of about . The upperside of the wings is checkered with bright orange-brown and black, while the underside of hindwing shows pearly-white spots. Females are lighter than the males. Adults can be encountered from May to July.
Larvae feed on Corethrogyne filaginifolia, Heterotheca grandiflora and Haplopappus squarrosus.
This very rare species can be found in California in the western United States. It is threatened throughout its range.