Cilrhedyn is a hamlet and parish[clarification needed] in the counties of Carmarthenshire and Pembrokeshire, Wales, in the hill country to the south of the Teifi valley. The Afon Cych divides it into two unequal parts: West Cilrhedyn, Pembrokeshire and East Cilrhedyn, Carmarthenshire. The parish church is in West Cilrhedyn.