Ferrocarriles Españoles de Vía Estrecha

Ferrocarriles Españoles de Vía Estrecha (FEVE), officially registered as Ferrocarriles de Vía Estrecha and known in its last years by the brand name Feve, was a Spanish public railway operator, founded in 1965, in charge of operating the national narrow-gauge network, whose management passed to the State after the extinction of the original owner companies. The entity depended on the Ministry of Development, being the second Spanish company in its sector, in terms of importance, after the also extinct RENFE. FEVE came to operate on a railway network of 1250 km of tracks.

FEVE was extinguished on December 31, 2012, as a result of the Spanish Government's plan to unify the state-owned narrow and broad-gauge public operators. Similar to the process culminated with RENFE in 2004, FEVE's infrastructures (stations, tracks, etc.) were segregated in Adif. Its railway material, as well as the operation of its routes for freight and passengers, in addition to the rights over its corporate identity, were segregated in Renfe-Operadora. The latter continued FEVE's work in the fields of freight and passenger transport, respectively, through Renfe Mercancías and Renfe Viajeros (first as Renfe Feve and as Renfe Cercanías AM since 2021).

Throughout its history, FEVE simultaneously owned railroads of five different track gauges: 1435 mm, 1062 mm, 1000 mm, 915 mm and 750 mm.