Östermalmstorg metro station is station on the red line of the Stockholm metro, located in the district of Östermalm. The station was opened on 16 May 1965 as the 59th station in the Stockholm system. The platform is approximately 38 metres below the surface. It is located in the city center, making it one of the most-used stations in the system, with approximately 32,000 people passing through the station on an average workday.