Blairquhan (/blɛərˈhwɑːn/ blair-WHAHN, Scots: Blairwhan) is a Regency era castle near Maybole in South Ayrshire, Scotland. It was the historic home of the Hunter-Blair Baronets and remained in the family's possession until 2012, when it was sold to a Chinese company. Blairquhan is protected as a Category A listed building, and the grounds are included in the Inventory of Gardens and Designed Landscapes in Scotland, the national listing of significant gardens.