Clydau (sometimes Clydaï or Clydey) is a village, parish, and community in the Hundred of Cilgerran in Pembrokeshire, Wales. The village is a small group of houses around the parish church, 8 km southwest of Newcastle Emlyn and 13 km southeast of Cardigan. Although the village is tiny, the parish is large, encompassing several larger hamlets including Bwlchygroes and Star, the village of Tegryn, and a large number of scattered farms. The community consists essentially of the parishes of Clydey and West Cilrhedyn (3 km to the east: church at .