Ardtornish Castle is situated in the grounds of the Ardtornish estate in Morvern, on the west coast of Scotland. It stands at the seaward end of a promontory which extends in a southerly direction into the Sound of Mull, approximately a mile south-east of the village of Lochaline, Highland. The castle was one of the principal seats of the high chiefs of Clan Donald from the early 14th to late 15th century.