A children's railway or pioneer railway is an extracurricular educational institution, where children interested in rail transport can learn railway professions. This phenomenon originated in the USSR and was greatly developed in Soviet times. The world's first children's railway was opened in Gorky Park, Moscow, in 1932. At the breakup of the USSR, 52 children's railways existed in the country. Many children's railways are still functioning in post-Soviet states and Eastern European countries. Many feature railway technology not seen anymore on the main lines and can be considered heritage railways. Though few exceptions exist, most children's railways built in the Eastern Bloc have a track gauge of at least and can carry full size narrow gauge rolling stock.

List of children's railways

Armenia

Azerbaijan

Belarus

Bulgaria

China

Cuba

Georgia

Germany

Hungary

Kazakhstan

Poland

Russia

Slovakia

Slovenia

Turkmenistan

Ukraine

United Kingdom

Uzbekistan