Craugastor vulcani is a species of frog in the Craugastoridae family. It is endemic to the Sierra de los Tuxtlas range in southern Veracruz state, Mexico. Its name refers to its type locality on the San Martin Tuxtla volcano.Its natural habitats are premontane and lower montane wet forests where it occurs along streams. The species is likely impacted by habitat loss, and its distribution area is small, prompting classification as an endangered species.