Narrow-gauge railways in Hungary

The former Austria-Hungary empire had a narrow-gauge rail network thousands of kilometres in length, most of it using Bosnian gauge 760 mm (2 ft 5+15⁄16 in) or 600 mm (1 ft 11+5⁄8 in) gauge, constructed between 1870 and 1920. Landlords, mines, agricultural and forest estates established their own branch lines which, as they united into regional networks, increasingly played a role in regional passenger traffic. Following the Treaty of Trianon some railways were cut by the new border, many remained on the territory of Romania, Czechoslovakia and Yugoslavia. Due to a lack of intact roads, following World War II in many places narrow-gauge railway was the only reasonable way to get around. In 1968 the Communist government started to implement a policy to dismantle the narrow-gauge network in favour of road traffic. Freight haulage on the few remaining lines continued to decline until 1990 from when a patchwork of railways was gradually taken over by associations and forest managements for tourist purposes. State Railways operated narrow-gauge railways at Nyíregyháza and Kecskemét that played a role in regional transport until December 2009.

Most railways have a track gauge of 760 mm (2 ft 5+15⁄16 in), unless otherwise specified.

• Kecskemét narrow-gauge network (no operation since 2009)
• Nyíregyháza narrow-gauge network (no operation since 2009)
• Balatonfenyves Narrow Gauge Railway

• Almamellék Forest Railway, 600 mm (1 ft 11+5⁄8 in) narrow gauge
• Csömödér Forest Railway
• Gemenc State Forest Railway
• Debrecen Forest Railway
• Felsőtárkány Forest Railway, Southern Bükk Mountains, near Eger, now a tourist railway, (see below).
• Kemence Forest Museum Railway, 600 mm (1 ft 11+5⁄8 in) narrow gauge
• Királyrét Forest Railway – Kismaros
• Lillafüred Forest Train, now a tourist railway, 2 lines Miskolc – Lillafüred – Újmassa and Miskolc – Mahóca.
• Mesztegnyő Forest Railway
• Nagybörzsöny Forest Railway – Nagyírtás - Márianosztra - Szob
• Pálháza Forest Railway
• Mátra railway, 2 lines, Gyöngyös–Mátrafüred / Lajosháza

• Budapest Children's railway, the 760 mm (2 ft 5+15⁄16 in) Gyermekvasút.^[1][2]
• Mecsek Children's railway, Pécs
• Tiszakécske Children's railway (Suspended in 2009, Reopened in 2021)
• Széchenyi Museum Railway (operated by children)

• Szalajka-Eisenbahn Szilvasvarad – Szalajka-völgy, tourist railway in a national park, 5 km, part of former extensive Felsőtárkány Forest Railway
• Széchenyi Museum Railway
• Vál Valley Light Railway