Saint Padarn's Church is a parish church of the Church in Wales, and the largest mediaeval church in mid-Wales. Founded in the early sixth century, St Padarn's Church has gone through many changes, from a Welsh monastic centre (a clas), a Benedictine priory, a clas again, a royal rectory, a church controlled by Chester's Vale Royal Abbey, and since 1538 a parish church under a vicar. It is at Llanbadarn Fawr, near Aberystwyth, in Ceredigion, Wales, United Kingdom.