Dolgoch Upper Falls is the highest of three waterfalls on the Nant Dol-gôch, a stream that drains into the River Fathew near Tywyn in Gwynedd, Wales.

The falls tumble through a wooded gorge, and the trail to reach them involves rocky terrain, steep sections, and a significant number of steps, making it the most challenging stretch of the Dolgoch Falls walk.

The upper falls are accessed by crossing the river at the lower falls and continuing upstream through the woodland. Caves in the vicinity of the upper falls add further interest to the route.

The complete circular walk, which takes in all three falls, covers roughly 1. 5 miles and typically requires around an hour to complete.