Økern is a metro station on the No 5, Grorud Line of the Oslo Metro system, situated between stations Hasle and Risløkka in the lower parts of the Grorud Valley. It is located 2.7 km (the geodesic distance) northeast of station Stortinget (the Parliament). The station is part of the original stretch of the Grorud Line, and was opened on 16 October 1966. In 2010, the station was refurbished and partly rebuilt.