Watermouth Castle is a building in Watermouth, near Ilfracombe, North Devon, England, designed by George Wightwick as a residence for the Bassett family in the mid-19th century and is not a true castle but a country house built to resemble one. It has been designated as a Grade II* listed building. Located near the shore of the inlet of Watermouth, near Ilfracombe, Devon, the castle houses a collection of Victorian antiques centred on domestic tools and amusement machines, a family theme park and holiday apartments. The Bassetts left the castle in 1945.