Sporveien Oslo AS is a municipally owned public transport operator in Oslo, Norway. It operates the trackage and maintains the stock of the Oslo Metro and Oslo Tramway. In 2022, its 3,306 employees transported 217 million passengers. Since 2008 it has operated on contract with the public transport authority Ruter.

The Oslo Metro is the rapid transit system of Oslo, Norway, operated by Sporveien T-banen on contract from the transit authority Ruter. The network consists of five lines that all run through the city centre, with a total length of 85 kilometres (53 mi), serving 101 stations of which 17 are underground or indoors. In addition to serving 14 out of the 15 boroughs of Oslo, two lines run to Kolsås and Østerås, in the neighbouring municipality of Bærum. In 2016, the system had an annual ridership of 118 million.