The Tatra Electric Railway (Slovak: Tatranská elektrická železnica), colloquially Tatra Railway, is an electrified (1500 V DC) single track 1,000 mm (3 ft 3+3⁄8 in) narrow gauge railway in the Slovak part of the Tatra mountains.

In 1896, a rack railway from Štrbské Pleso to Štrba was built.

Finally, it was decided to build an electrified, narrow gauge railway from Poprad to Starý Smokovec.

The branch line from Starý Smokovec to Tatranská Lomnica was opened in 1911 and the final extension from Starý Smokovec to Štrbské Pleso was opened in 1912.

In the second half of the 1960s, the railway underwent major reconstruction during preparations for the FIS Nordic World Ski Championships in 1970.