Heerstraße (literally: Army Street) runs from Theodor-Heuss-Platz in Berlin-Charlottenburg to the western city border of Berlin in the locality of Staaken in the borough of Spandau. It is part of Bundesstraße 5; from Theodor-Heuss-Platz to Wilhelmstraße it is forms part of Bundesstraße 2. With a length of around 10 kilometres, it is one of the longest streets in Berlin and an important commuter route. The street is a five-lane expressway (Kraftfahrstraße), depending on traffic flow the middle lane is available during rush hours in the morning (eastbound) and in the evening (westbound).
The construction of the street started in 1874 from Berlin-Charlottenburg to Pichelsberg. In 1911 the street was opened in full length as Döberitzer Heerstraße in attendance of Emperor Wilhelm II.. It was constructed in stages since 1903. This all was in connection with the construction of a wide street for representation purposes, which started at the Berlin Castle as Unter den Linden Street to Ernst-Reuter-Platz. It was then extended via Bismarckstraße and Kaiserdamm. From 1920 on the name was shortened to Heerstraße.
Until 1964 Heerstraße was also a tram route. The former tramway is today's green strip between Theodor-Heuss-Platz and Stößenseebrücke.
Heerstraße starts at Theodor-Heuss-Platz in Westend of Charlottenburg district, close to the exhibition ground, the Funkturm and the International Congress Centre (ICC).