Ferrocarril de Langreo or FC de Langreo was a Spanish railway company which operated a standard gauge line, in the Autonomous Community of Asturias, in northern Spain. It was the third train line constructed in Spain and was built during the 1850s.
The private 50 km (31 mi) railway focused on moving coal and iron ore from the mines of Laviana and Langreo and the factory of La Felguera to Gijon. It was the only non-urban Spanish railway built to 1,435 mm (4 ft 8 1⁄2 in) standard gauge, which often led it to look for second-hand rolling-stock, mainly from the United States. This included the purchase of:
In 1973, the FC de Langreo was absorbed by FEVE, which rebuilt the Gijon-Laviana line to metre gauge in 1983.