Pristimantis megalops is a species of frog in the Craugastoridae family. Its common name is San Lorenzo robber frog. It is endemic to the northwestern slopes of Sierra Nevada de Santa Marta, northern Colombia.It occurs in cloud forest areas where it is found in closed-canopy secondary forests, riparian forests, and pine plantations. It is a very common, terrestrial frog that can be found on fallen leaves and under rocks and logs. It is threatened by habitat loss.