Auchinleck House is an 18th-century mansion in Scotland. It is situated near the town of Auchinleck near Cumnock and Ayr in East Ayrshire. The Auchinleck Estate has been inhabited since the 13th century, and the remains of Auchinleck Castle and Auchinleck Old House stand in the estate. The house is protected as a category A listed building, while the two ruined dwellings are scheduled monuments.

Auchinleck is a village 5 miles (8 km) southeast of Mauchline, and 2 miles (3 km) northwest of Cumnock in East Ayrshire, Scotland.