Pristimantis minimus is a minute frog from the Craugastoridae family. It is found in the Cordillera del Cóndor at elevations between 1,250–1,685 m (4,101–5,528 ft) asl on either side of the valley of the Rio Nangaritza, in the Zamora-Chinchipe Province of Ecuador. The species is the smallest known frog discovered in Ecuador to date, and is the smallest of the Pristimantis genus. It is suggested that this miniaturization is an adaptation to resource-poor environments.