Clydach

Clydach may refer to any of various settlements and rivers in South Wales:
 * Clydach, Monmouthshire (village)
 * Clydach, Swansea (village)
 * Clydach (electoral ward), an electoral ward in the City and County of Swansea


 * Clydach Gorge, (Welsh Cwm Clydach) Monmouthshire
 * River Clydach, Monmouthshire, (Welsh Afon Clydach)
 * Lower Clydach River, Swansea Valley
 * Upper Clydach River, Swansea Valley
 * River Clydach (Neath), tributary of River Neath at Neath
 * Clydach Vale, (Rhondda Cynon Taff)