Aberthaw (Welsh: Aberddawan) is an area containing the villages of East Aberthaw and West Aberthaw, on the coast of South Wales about 5 miles (8 km) west of Barry. It is home to Aberthaw Cement Works, Aberthaw Lime Works, and Aberthaw Power Station, a coal power station that is linked to the South Wales Valleys via the Vale of Glamorgan Railway. The area is historically within the parish of Penmark in the Vale of Glamorgan. The two villages of West and East Aberthaw are separated by the River Thaw. The village of East Aberthaw, near Rhoose, has a 13th-century pub. The village Baptist Chapel and Mission Room, no longer exist as such and have been converted for other uses.