Margam Castle is a large Victorian era country house, built in Margam, Port Talbot, Wales, for Christopher Rice Mansel Talbot (1803–1890). It was constructed over a ten-year period, from 1830 to 1840, on a site which had been occupied for some 4,000 years and which from the 11th century until the dissolution of the monasteries was an abbey. Although called a "castle", the building is really a large comfortable country house, one of many "mock" castles built in the 19th century during the Gothic Revival.