Østerås is the terminal station on Røabanen of the Oslo T-bane. The station is located in the Bærum municipality, 10.2 km from Stortinget.
Østerås was opened on November 16 1972, extending the line from Lijordet.
Østerås is a largely residential area. Next to the station is the middle school Østerås. The station also serves Eikeli Upper Secondary School.