East Loch Tarbert (Scottish Gaelic: Loch an Tairbeairt) is a sea loch that lies to the east of the island of Harris in the Outer Hebrides of Scotland. The loch contains several small islands including Sgeotasaigh, Stiughiag, Stiughiag na Leum and Rosaigh and the larger bridged island of Scalpay.