Gastrotheca pseustes is a species of frog in the family Hemiphractidae.

It is endemic to Ecuador.

Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical high-altitude shrubland, subtropical or tropical high-altitude grassland, rivers, freshwater marshes, intermittent freshwater marshes, pastureland, and heavily degraded former forest.

It is threatened by habitat loss.

This Hemiphractidae article is a stub.