The Oslo Package 2 (Norwegian: Oslopakke 2) or O2 is a political agreement for financing investments in public transport in Oslo and Akershus, Norway. The program runs from 2001 to 2011, and includes many large and small investments in railways, the Oslo Tramway, the Oslo Metro and infrastructure for buses. Total budget is NOK 15.6 billion. The project is a cooperation between the transit authorities Oslo Sporveier and Stor-Oslo Lokaltrafikk, Oslo Municipality and Akershus County Municipality, and the government agencies of the Norwegian National Rail Administration and the Norwegian Public Roads Administration.
Large infrastructure projects include the Ring Line of the metro, along with new MX3000 rolling stock, and the new Asker- and Follo Lines of the national railways. Other projects include new train and bus stations, bus lanes and an upgrade of the Kolsås Line of the T-bane to metro standard. The project is a continuation of Oslo Package 1, that focuses on building motorways around Oslo. It will be supplemented by Oslo Package 3 that has both road and rail infrastructure in it.