Frøen is a station on the Oslo Metro in the Vestre Aker borough, it is the first station on the Holmenkollen Line after Majorstuen. The name refers to Frøen Gård, a stately estate located near the present location of the t-bane station, of which now only the manor house remains. Previously, trains switched from third rail which was used on most of the network (now all), to overhead wire which was used on Holmenkollbanen, at Frøen. Unlike the other stations on Holmenkollbanen, Frøen has longer platforms which accommodate three-car trains.