| Y Garn | |
| Elevation M: | 684 |
| Prominence M: | 56 |
| Parent Peak: | Pen Pumlumon Fawr |
| Listing: | Hewitt, Nuttall |
| Language: | Welsh |
| Location: | Ceredigion, Wales |
| Range: | Cambrian Mountains |
| Coordinates: | 52.4505°N -3.8031°W |
| Grid Ref Uk: | SN789869 |
| Topo: | OS Landranger 135 |
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 550m (1,800feet) and Banc Llechwedd-mawr at 560m (1,840feet).[1] bothMarilyns.