Drum Castle is a castle near Drumoak in Aberdeenshire, Scotland. For centuries it was the seat of the chief of Clan Irvine. The place-name Drum is derived from Gaelic druim, 'ridge'. The site is located approximately 6+1⁄2 miles northeast of Banchory and 3 miles west of Peterculter. The property is now owned by the National Trust for Scotland and is open to the public.