Glen Coe (Scottish Gaelic: Gleann Comhann, is a glen of volcanic origins, in the Highlands of Scotland. It lies in the north of Argyll, close to the border with Lochaber. It is often considered one of the most spectacular and beautiful places in Scotland, and is a part of the designated National Scenic Area of Ben Nevis and Glen Coe. The narrow glen shows a grim grandeur. The glen, approaching from the east on the main A82 road, is surrounded by wild and precipitous mountains. Further west at Invercoe, the landscape has a softer beauty before the main entrance to the glen.
The main settlement is the nearby village of Glencoe located at the foot of the valley.The name Glen Coe is often said to mean "Glen of Weeping", perhaps with some reference to the infamous Massacre of Glencoe which took place there in 1692. However, "Gleann Comhann" does not translate as "Glen of Weeping". In fact the Glen is named after the River Coe which runs through it, and bore this name long before the 1692 incident. The name of the river is believed to predate the Gaelic language and its meaning is not known. It is possible that the name stems from an individual personal name, Comhan (gen. Comhain).
The south side of the glen is marked by a succession of distinct peaks: Buachaille Etive Mòr is followed to the west by Buachaille Etive Beag, then by the Three Sisters, shoulders of the Bidean nam Bian massif which itself marks the western end of the glen. By contrast the north side of the glen is a stark wall of mountain, the Aonach Eagach ridge. The Ridge is crossed at the eastern end by the Devil's Staircase, an old military road opposite Buachaille Etive Mòr. To the north of Buachaille Etive Mòr, there is Beinn a'Chrulaiste. The western end terminates with the conical Pap of Glencoe (Sgùrr na Cìche), above Glencoe village, at the point where the glen opens out to Loch Leven.
The River Coe itself — Ossian's "dark Cona" — rises at the north-eastern base of Buachaille Etive Beag and flows west along the glen, with dramatic waterfalls at the Pass of Glen Coe. It then runs through the small Loch Achtriochtan before it turns north west. It then passes through Glencoe village, shortly before flowing into the sea loch of Loch Leven (a salt-water arm of Loch Linnhe) at Invercoe.