Phrynopus kotosh is a species of frogs in the family Craugastoridae. It is endemic to Peru and only known from its type locality near Huancapallac, Huánuco Region, at asl in the Cordillera Central (Peruvian Andes). The specific name refers to the pre-Columbian culture Kotosh; ruins from this culture are known from the area of the type locality.