Mains Castle (also known as Claverhouse Castle or Fintry Castle ) is a 16th-century castle in Dundee, Scotland. The castle consists of several buildings surrounding a courtyard, although several of the original western buildings no longer exist. The northern and eastern buildings are where the family would have lived, with the servants occupying the southern quarters. The castle also has a large, six-floor, square tower house with dressed cornerstones, which is typical of 16th-century construction. It is a Category A listed building.