Andermatt (Romansh: ) is a mountain village and municipality in the Canton of Uri in Switzerland. At an elevation of 1,437 meters (4,715 ft) above sea level, Andermatt is located at the center of the Saint-Gotthard Massif and the historical center cross of north-south and east-west traverses of Switzerland. It is some 28 km (17 mi) south of Altdorf, the capital of Uri.

Andermatt is in the Urseren valley, on the headwaters of the river Reuss and surrounded by the Adula Alps . Immediately to the north of Andermatt, the Reuss flows through the steeply descending Schöllenen Gorge (or "the Schöllenen") to Göschenen and further down the Reuss Valley to the north. It then flows, near Altdorf, into the Urnersee, part of Lake Lucerne.