The Companhia Paulista de Trens Metropolitanos (CPTM) (English: São Paulo Metropolitan Trains Company) is a rapid transit and commuter rail company owned by the São Paulo State Department for Metropolitan Transports.

Part of the Greater São Paulo rail system, the CPTM has 57 stations in five lines, with a total length of 199 kilometres (124 mi).

These railways were eventually incorporated into the state-owned Rede Ferroviária Federal (RFFSA) in 1957 and Ferrovia Paulista S.A. (FEPASA) 1971.

Between the end of the 1990s and the early 2000s, the CPTM began the conversion of some metropolitan lines to provide a service similar to rapid transit and better integrate with the São Paulo Metro.

The proposed Trens Intercidades regional railway project is considering using the Line 7 tracks for providing service to neighboring cities of Jundiaí, Campinas and Americana.