Aros Castle, is a ruined 13th-century castle located near Salen, Isle of Mull, Scotland (Scottish Gaelic: An t-Sàilean, An t-Eilean Muileach, Alba). It is thought to have been built by one of the Clan MacDougall Lords of Lorn and was once a stronghold of the Lords of the Isles. The castle was defended on the seaward side by low cliffs, and originally by a ditch on the inland side. When Aros Castle was forfeited it went from the MacDougall's to the Clan Donald. In the end they lost the castle to the Clan Maclean. The castle was reported to have been in a ruinous state since the last 1600's.