Auldhame Castle is a ruined L-plan tower house standing on a ridge above Seacliff beach, about 3 miles east of North Berwick in East Lothian, and less than half a mile from Tantallon Castle. The castle was built in the 16th century, probably by Adam Otterburn of Reidhall, Lord Provost of Edinburgh. It consists of a three-storey main block with a projecting stair-tower.