Cwm Clydach

Cwm Clydach (Cwm is Welsh for "valley" and Clydach is a popular river name) may refer to:

Places

 * Cwm Clydach, Kidwelly, a site of special scientific interest (SSSI) near Kidwelly, Carmarthenshire
 * Cwm Clydach National Nature Reserve, on the Clydach Gorge in Blaenau Gwent
 * Cwm Clydach RSPB Reserve, near the village of Clydach, Swansea
 * Cwm Clydach, Rhondda Cynon Taf, a community and electoral ward in Rhondda Cynon Taf based around the village of Clydach Vale
 * Cwm Clydach, the Welsh language name for Clydach Vale, a village in Rhondda Cynon Taf
 * Clydach Gorge (Blaenau Gwent), also known as Cwm Clydach