Armenian Railways (Armenian: Հարավկովկասյան Երկաթուղի, Haravkovkasyan Yerkat’ughi) is the former national rail operator in Armenia. The 845 km (525 mi), 1,520 mm (4 ft 11 27⁄32 in) gauge network is electrified at 3 kV DC.
The railway operating environment in Armenia sharply deteriorated following the collapse of the Soviet Union. According to the World Bank, Armenian Railways was in dramatic need of major investment, including the replacement of rolling stock, rehabilitation of the main line between Yerevan and the Georgian border, renewal of electrification, and bridge reconstruction. Rail transport was slow and unreliable, and traffic remained low compared to European countries with similar sized networks, amounting to only 2.6 million tons of freight and 0.85 million passengers in 2004.
At present the only preexisting rail connection between Armenia and Iran is the line which passes through the autonomous region of Nakhchivan, an exclave of Azerbaijan. However, because the border between the two countries is closed, the line from Yerevan is operational only as far as Yeraskh.