Penderyn is a rural village in Cynon Valley, Rhondda Cynon Taf, Wales. It is located near Hirwaun. Its origins and expansion begun as an agricultural market village, which supplied the ever growing needs of the nearby local Market Town of Aberdare, situated in the Cynon Valley in the county of Rhondda Cynon Taf in Wales
It lies on the A4059 road between Hirwaun and Brecon and is the last settlement on that road in the county of Rhondda Cynon Taf before the border with Powys to the north. The village sits just within the southern boundary of the Brecon Beacons National Park. The River Cynon passes through the area.