Renfe Cercanías AM,^[1] formerly known as Renfe Feve, is a division of state-owned Spanish railway company Renfe Operadora. It operates most of Spain's 1,250 km (777 mi) of metre-gauge railway. This division of Renfe was previously a stand-alone company named FEVE (Ferrocarriles de Vía Estrecha, Spanish for "Narrow-Gauge Railways).^[2] On 31 December 2012, the Spanish government simplified the organization of state-owned railway companies by merging FEVE into Renfe and Adif.^[3] The rolling stock and the brand FEVE were transferred to Renfe (renamed "Renfe Feve"), while the infrastructure was transferred to Adif.

FEVE was created in 1965, as a successor to the government-run organisation EFE (Explotación de Ferrocarriles por el Estado), which was created by the Miguel Primo de Rivera administration in 1926 to take over failed private railways. Following the creation of RENFE in 1941, to which the ownership of all Spanish broad-gauge railways were transferred to, EFE had in practice become the operator of a collection of exclusively narrow-gauge lines. The present status of FEVE, as a government-owned commercial company, dates from 1965.

The new company continued to absorb independent railway lines (1,435 mm or 4 ft 8+1⁄2 in standard gauge,^[4] 1,067 mm or 3 ft 6 in,^[5] 1,000 mm or 3 ft 3+3⁄8 in, 914 mm or 3 ft & 750 mm or 2 ft 5+1⁄2 in), where the existing concession holders had been unable to be profitable. Most were converted to 1,000 mm (3 ft 3+3⁄8 in) metre gauge (if not already built in that gauge). However, from 1978 onwards, with the introduction of regional devolution under the new Spanish constitution, FEVE also began transferring responsibility for a number of its operations to the new regional governments. This happened in Catalonia (FGC) in 1979, in a portion of the Basque (Euskotren) network in 1982, in the Valencian Community (FGV) in 1986, and with the Majorcan Railways (SFM) in 1994. That did not however occur in the Region of Murcia, where the narrow-gauge railway network remained under FEVE control. The above-mentioned EFE (Explotación de Ferrocarriles por el Estado) also operated the Carabanchel – Chamartín de la Rosa suburbano railway in the city of Madrid. That railway became part of the Madrid Metro when control of that line was transferred to the Community of Madrid in the early-1980s, later integrated as the present-day Line 10.

On 31 December 2012, the company disappeared due to the merger of the narrow gauge network FEVE and the broad gauge network RENFE. The infrastructure was transferred to Adif and the rolling stock was transferred to Renfe Operadora. The operation of the narrow gauge network continued under the same conditions after the reorganization.^[3]

The great majority of the narrow-gauge lines that were operated by FEVE before it disappeared were located along or near Spain's Atlantic Ocean and Bay of Biscay coastline, which stretches from Galicia in the northwest, through Asturias and Cantabria to the Basque Country (with a branch extending into Castile and León). Together they formed a large and strategically important system, which was why – unlike the other, more isolated regional railways – they have been retained under the integrated management of FEVE.

FEVE operated 1,192 km (741 mi)^[6] of track, of which 316 km (196 mi) were electrified.

• Euskotren and Metro Bilbao - in the Basque Country (there is a connecting line between the FEVE and EuskoTren networks in Bilbao^[8])
• FGC - around Barcelona
• FGV - in the Valencian Community
• SFM - on the island of Majorca
• Metro de Madrid - in the city of Madrid.

• Transport in Spain
• History of rail transport in Spain
• Narrow gauge railways in Portugal