Dowhill Castle is a ruined castle in Perth and Kinross, Scotland. Sited on a hill near Loch Leven, the oldest part of the castle was built in around 1500 as a tower house. The main structure was extended in around 1600 with additional living space, as well as a tower and turret. The castle had a fortified courtyard (barmkin) to the north with a separate tower. There were probably four storeys but only two still survive.