St Mary's Priory Church, in Whitecross Street, Monmouth, Monmouthshire, Wales, is an Anglican church founded as a Benedictine priory in 1075. The current church dates mostly from the 18th and 19th centuries. It was designated a Grade II* listed building in 1952. It is one of 24 buildings on the Monmouth Heritage Trail.
St.Mary's Priory Church was founded in 1099.