Blaenrheidol is a community in the county of Ceredigion, North Wales. It lies in the Cambrian Mountains of Mid Wales, approximately 12 miles east of Aberystwyth on the A44 road. The population of Blaenrheidol is approximately 495.

Blaenrheidol Community Council receives funding from the Cefn Croes wind farm.

The Cefn Croes Wind Farm Community Trust was established on November 2005. The Board of the Trust is comprised of five Trustees representing the Communities of Pont-ar-Fynach and Blaenrheidol and the Cambrian Wind Energy.