Pristimantis frater is a species of frog in the family Craugastoridae. It is endemic to Colombia and occurs on the eastern slopes of the Cordillera Oriental in the Norte de Santander, Boyacá, Casanare, Cundinamarca, and Meta Departments, as well as in the Serranía de la Macarena (Meta Department). The population in the Serranía de la Macarena might represent a distinct species. Common name Meta robber frog has been coined for it.