The Fairy Falls (Welsh: Rhaeadr y Tylwyth Teg) is a waterfall in the village of Trefriw, north Wales. The falls are on the river Crafnant which has its source at Llyn Crafnant, being joined upstream by a tributary, the river Geirionydd. Below the falls the river Crafnant flows on to itself become a tributary of the river Conwy.