Fuorn Pass or Ofen Pass (el. 2149 m.) is a high alpine mountain pass in the canton of Graubünden in Switzerland. The name is based on the ovens that were used in ironworks in the area. The ruins of these ovens can still be seen from nearby trails. It connects Zernez in the Engadin valley with Val Müstair, crossing the (only) Swiss National Park in Switzerland.
It was here that a brown bear (Ursus arctos) was seen and photographed in July 2005 - the first sighting of a wild bear in Switzerland since 1923 In 2004, the biggest Honey fungus spotted in Europe was found near the Pass. The fungus is about 1,000 years old and its diameter is estimated at 500 to 800 meters.