The Great Glen Way (Scottish Gaelic: Slighe a' Ghlinne Mhòir) is a long distance path in Scotland. It follows the Great Glen, running from Fort William in the southwest to Inverness in the northeast, covering 125 kilometres (78 mi). It was opened in 2002, and is designated as one of Scotland's Great Trails by NatureScot. The Great Glen Way is generally walked from southwest to northeast to follow the direction of the prevailing wind. It can be walked in 5–7 days, or cycled in 2–3 days. The trail is maintained and improved by the Great Glen Ways partnership, which consists of Highland Council, Scottish Canals and Forestry and Land Scotland. About 30,000 people use the path every year, of whom about 4,500 complete the entire route.
A 114-kilometre (71 mi) temporary model railway known as The Biggest Little Railway in the World was laid and filmed over the Great Glen Way in the summer of 2017.