Gyrn Moelfre is a mountain in Powys, mid-Wales, near the border with Shropshire. It stands to the south-east of the Berwyns, from which it is separated by Afon Ysgwennant. The village of Llansilin lies on its south-west slopes. It was historically in Denbighshire, but the area was transferred to Powys in 1996.

Gyrn Moelfre
Highest point
Elevation523 m (1,716 ft)
Prominence237 m (778 ft)
Parent peakCadair Berwyn
ListingMarilyn
Geography
Map
LocationPowys, Wales
OS gridSJ184293
Topo mapOS Landranger 125

In the modern era, the "Gyrn" has played host to the British Downhill Series and some other smaller events on the downhill calendar. 52°51′21″N 3°12′46″W / 52.85576°N 3.21268°W / 52.85576; -3.21268