The Fribourg–Farvagny trolleybus system (French: Train sans voie de Fribourg–Farvagny) was a pioneering interurban trolleybus line in the canton of Fribourg, Switzerland between 1911 and 1932. The 12.5 km (7.8 mi) long line was operated for most of its life by the Compagnie des omnibus électriques Fribourg–Farvagny, and linked the old Fribourg railway station with Farvagny-le-Grand. It was the first trolleybus system in Switzerland, although a 200-metre-long experimental trolleybus line had operated on a demonstration basis near the Château de Chillon and the Hotel Byron in 1900.