The Grorud Line (Norwegian: Grorudbanen) is a 13.0-kilometer long (8.1 mi) line on the Oslo Metro between Tøyen and Vestli in Oslo, Norway. Built as a mix of underground, at ground level and as an elevated line, it runs through the northern part of Groruddalen, serving such neighborhoods as Grorud, Romsås and Stovner. Line 5 runs along the line eight times per hour. The westernmost part of the line, from Tøyen to Carl Berners plass, is also used by Line 6, which continues along the Ring Line.