Barcelona Sants is Barcelona's main railway station and is owned by the Spanish railway infrastructure agency Adif. It has become the most important transportation hub of the Catalan capital – as the centre of the Rodales de Catalunya, including the railway services and regional services of the suburbs of Barcelona, as well as the main intercity stations of domestic and international destinations. The station is named after Sants, near Barcelona.

The station offers long-distance train services and Madrid is two and a half hours from the high-speed rail line. The high-speed network extended eastward to France to connect to the TGV network and completed direct TGV service in 2013. High speed service uses stations 1 to 6. The station also provides local and commuter train services to nearby areas.

The station is located in the Sants-Montjuïc district of Barcelona, just a few steps from the west of the city centre and easily accessible by metro or bus from anywhere in the city. Located at the end of Avinguda Roma between the two squares, it has two entrances.