The Cathedral Church of Saints Asaph and Cyndeyrn, commonly called St Asaph Cathedral, is a cathedral in St Asaph, Denbighshire, north Wales. It is the episcopal seat of the Bishop of St Asaph. The cathedral dates back 1,400 years, while the current building dates from the 13th century. The cathedral is part of the Church in Wales and part of the Anglican Communion of Wales.