The Furka Oberalp Railway (German: Furka Oberalp Bahn) is a narrow gauge mountain railway in Switzerland with a gauge of 1,000 mm (3 ft 3+3⁄8 in). It runs in the Graubünden, Uri and Canton of Valais. Since January 1, 2003, it is part of the Matterhorn Gotthard Bahn when it merged with the BVZ Zermatt-Bahn.
The line begins in Disentis in the canton of Graubünden, where there is a connection to the Rhätische Bahn (RhB). It then runs over the Oberalp Pass to Andermatt in the canton of Uri. Through the Furka Base Tunnel it reaches the Goms District area and Brig in the canton of Valais. In Brig, it connects to the BVZ Zermattbahn since 1930.