Glen Nevis (Scottish Gaelic: Gleann Nibheis) is a glen in Lochaber, Highland, Scotland, with Fort William at its foot. It is bordered to the south by the Mamore range, and to the north by the highest mountains in the British Isles: Ben Nevis, Càrn Mor Dearg, Aonach Mòr, and Aonach Beag. It is home to one of the three highest waterfalls in Scotland, Steall Falls, where the Allt Coire a'Mhail joins the Water of Nevis in the glen. Below the waterfall is a steeply walled and impressive gorge. The scenic beauty of the glen has led to its inclusion in the Ben Nevis and Glen Coe National Scenic Area, one of 40 such areas in Scotland. Several films have been shot in Glen Nevis, including some scenes from the Harry Potter movies, Highlander, Highlander III: The Sorcerer, Braveheart and Rob Roy.
A public road runs for 10 km up the Glen, becoming single track after 7 km. There is a hotel, Scottish Youth Hostels Association hostel, and campsite at the bottom of the glen, near Fort William, and a small hamlet further up at Achriabhach.