Pristimantis gladiator (common name: Papallacta Valley robber frog) is a species of frog in the family Strabomantidae.

It is found on the Amazonian slopes of the Andes in Ecuador (Napo Province, Imbabura Province) and southern Colombia (Putumayo Department).

Its elevational range is 2,270–2,910 m (7,450–9,550 ft) asl.

[2] Pristimantis gladiator has a brown to orange-brown dorsum with dark brown markings, and a black groin with orange to red spots.

[3] Its natural habitats are páramo grassland, cloud forest, and clearings.