Frankfurt Lokalbahnhof is an underground S-Bahn station in the district of Sachsenhausen of Frankfurt am Main, Germany. The station was opened when the City Tunnel was extended to Frankfurt South station in 1990. It consists of two tracks, surrounding a central platform. The station is an important public transport interchange and is served by S-Bahn, tram and bus routes. The S-Bahn station is located underground, while the trams and buses run on the surface.