Soay Sound (Scottish Gaelic: Caolas Shòdhaigh) is a strait separating the islands of Soay Mòr and Soay Beag from the northern part of the island of Harris. The sound is part of West Loch Tarbert.
Coordinates: 57°56′50″N 6°57′57″W / 57.9473°N 6.9658°W