The Trans-Siberian Railway or Trans-Siberian Railroad (Transsib in Russian, or Transsibirskaya magistral') is a network of railways connecting European Russia with Russian Far East provinces, Mongolia and China.

The main route, the Trans-Siberian, runs from Moscow to Vladivostok via southern Siberia and was built between 1891 and 1916. It is often associated with the main Russian train that connects these two cities. At 9,288 kilometres (5,772 miles) and spanning 8 time zones, it is the longest single continuous service in the world, and it takes about 7 days to complete its journey.