Loch Torridon (Scottish Gaelic: Loch Thoirbheartan) is a sea loch on the west coast of Scotland in the Northwest Highlands. The loch was created by glacial processes and is in total around 15 miles (25 km) long.
It has two sections: Upper Loch Torridon to landward, east of Rubha na h-Airde Ghlaise, at which point it joins Loch Sheildaig; and the main western section of Loch Torridon proper. Loch a' Chracaich and Loch Beag are small inlets on the southern shores of the outer Loch, which joins the Inner Sound between the headlands of Rubha na Fearna to the south and Red Point to the north.
The area 'Torridon' is loosely used to describe the north of Loch Torridon, on both sides of Upper Loch Torridon, and on both sides of Glen Torridon. <ref>http://www.undiscoveredscotland.co.uk/torridon/torridon/ (accessed 16th June 2014)</ref> The village of Torridon is to the northeast corner of the Loch. <ref>http://www.undiscoveredscotland.co.uk/torridon/torridon/ (accessed 16th June 2014)</ref> To the north are the villages of Redpoint, Diabaig, Wester Alligin and Alligin Shuas. To the south is Shieldaig.
The name Thoirbhearta has a similar root to Tarbert and indicates a place where boats were dragged overland.<ref> Iain Mac an Tàilleir. "Placenames" (PDF). Pàrlamaid na h-Alba. (accessed 27th June 2014)</ref>
The loch is surrounded by various mountains to the north, including Liathach, Beinn Alligin and Beinn Eighe, all of which are over 3,000 feet (910 m) in height. <ref>http://www.undiscoveredscotland.co.uk/torridon/beinneighe/ (accessed 27th June 2014)</ref>
The Torridon Hills exhibit some of the most dramatic mountain scenery in the British Isles, surpassed in grandeur perhaps only by the Cuillins of Skye. The rocks of which they are made are known as Torridonian sandstone, some of which are crowned by white Cambrian quartzite. They are amongst the oldest rocks in Britain, and sit on yet older rocks, Lewisian gneiss.