The Chemins de fer fribourgeois Gruyère–Fribourg–Morat (GFM) was a railway company in Switzerland. It was established with the merger in 1942 of two standard gauge and one 1,000 mm (3 ft 3+3⁄8 in) gauge railways running mainly within the Swiss canton of Fribourg. It was officially called the Compagnie des Chemins de fer fribourgeois ("Fribourg Railway Company"). The company also operated numerous regional buses in the same area. After a merger with Fribourg city transport, the company was renamed Transports publics fribourgeois/Freiburgische Verkehrsbetriebe (TPF).