Monmouth Priory, in Priory Street, Monmouth, Wales, is a building that incorporates the remains of the monastic buildings attached to St Mary's Priory Church. The priory was a Benedictine foundation of 1075, and parts of the mediaeval buildings remain. The buildings were substantially redeveloped in the nineteenth century for use as St Mary's National School, and now form a community centre. The complex is a Grade II* listed building as of 27 June 1952. It is one of 24 sites on the Monmouth Heritage Trail.