Moel Tryfan (1400' / 427m) is a small mountain near the villages of Rhosgadfan, Y Fron and Betws Garmon, in northern Gwynedd. The higher and more famous peak of Tryfan above Dyffryn Ogwen has also sometimes been referred to as "Moel Tryfan" in the past.
Moel Tryfan could be regarded as the westerly outlier of the larger Mynydd Mawr. The southern and eastern flanks of the mountain were heavily quarried in the past.