Y Garn is a subsidiary summit of Pen Pumlumon Fawr and the fourth highest peak on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales.

The summit is marked by a large shelter cairn, hollowed out from an ancient burial cairn.

The views include Rhos Fawr, Drygarn Fawr, Pen y Garn to the south and Aran Fawddwy, Glasgwm, Tarrenhendre and Tarren y Gesail to the north.

The Nant-y-moch Reservoir can also be seen to the north, with the smaller summits of Drosgol at 550 m (1,800 ft) and Banc Llechwedd-mawr at 560 m (1,840 ft).

This Ceredigion location article is a stub.