Mynydd Drumau (meaning "Mountain of the Ridges" in English) is a mountain in south Wales lying on the border between Swansea and the county of Neath Port Talbot.
It is 272m / 892ft high. The mountain is situated in a suburban and rural upland zone and is dotted with a number of farms and woodlands.
Villages and suburbs lining the foot of the mountain include: Skewen, Birchgrove, Bryncoch, Rhos and Glais.