Castlemilk House was a country house located in what is now the Castlemilk district of Glasgow, Scotland. The house was the ancestral home of the Stirling-Stuart family and was built around the 15th-century Cassiltoun Tower during the 18th and 19th centuries. The house and Castlemilk Estate were purchased by Glasgow Corporation in 1938, with the house serving as a children's home until it was closed in 1969 and demolished in 1972.