Kyle of Tongue is a see loch in the western part of the county Sutherland, Highlands region of Scotland. Kyle of Tongue is located 13 km (8 miles) east of Loch Eriboll. Its western access is between Cnoc Glass and Roan Island and the eastern entrance is between Rosin Island and Neave Island. From Roan Island, the lake is oriented in a south and southwest direction for 11 km (7 miles) to Kinloch. A vast part of it is sandy, with a tight bar-encumbered duct racing through it. The hills around it are covered by lawns, grasses and heath. There is moorland between the Kyle and Loch Eriboll.
Water fauna within the lake includes salmon and sea trout. Whales and otters can be found at the mouth of the loch. The area around the loch is populated with many different species of birds such as barn swallows, black-headed gulls, ravens and a number of raptor species, including golden eagles, hen harriers, merlins and short-eared owls.