The Nantlle Ridge (Welsh: Crib Nantlle) is the name given to a small range of mountains in Snowdonia, north Wales which runs south-west from the village of Rhyd Ddu for a distance of about 9 km (6 mi), ending above Nebo in the Nantlle Valley.
The Nantlle Ridge offers excellent hill walking with fewer crowds than on the more popular parts of Snowdonia. It can be started from either end, but the Rhyd Ddu end tends to be the more popular. There are no great technical difficulties, although a little scrambling may be required on some parts of the ridge.