Loch Skeen is a loch in Dumfries and Galloway in the south of Scotland. It is located about 10 miles to the north-east of Moffat and feeds the 60-metre (200 ft) high Grey Mare's Tail waterfall. The area around Loch Skeen is popular with hikers, and the Daily Telegraph included Loch Skeen in a list of Britain's finest one-day and half-day walks.