List of railway lines in Bulgaria

This is a list of railway lines in Bulgaria focusing primarily on intercity train lines. In 2019, there were 4,071 kilometres (2,530 mi) of standard gauge railways, of which 67% were electrified. Narrow gauge lines amount to 125 kilometres (78 mi).

Train railways, as well as related infrastructure such as stations, are managed and maintained by the National Railway Infrastructure Company, which split from Bulgarian State Railways (BDZ) - Bulgaria's national rail company - in 2002. The National Railway Infrastructure Company holds a virtual monopoly on ownership and works closely with the State Railways.

Non-train rail transport in Bulgaria is limited to tram and metro services in Sofia, both managed by their own municipality-owned companies.