River Dulais (Welsh: Afon Dulais) is a river of Wales which has its source at Mynydd y Drum. It joins the River Neath after flowing over Aberdulais Falls.

• Angling News Weekly - River Dulais

51°40′49″N 3°46′41″W / 51.68017°N 3.77801°W / 51.68017; -3.77801