Mannerheimintie

Mannerheimintie (Swedish: Mannerheimvägen) (previously known as Henrikinkatu, Läntinen ja Itäinen Henrikinkatu, Läntinen ja Itäinen Heikinkatu, Turuntie, Läntinen viertotie, Heikinkatu), colloquially known as Mansku, named after the Finnish military leader and statesman Carl Gustaf Emil Mannerheim, is the main street and boulevard of Helsinki, Finland. It also forms part of the European route E12 and a continuation of the Finnish national road 3.

The street was originally named Heikinkatu (Swedish: Henriksgatan), after Robert Henrik Rehbinder on the first part up to the current Kiasma Art museum and Turuntie after that, but was renamed after the Winter War. The change of name was also a reference to Mannerheim's victory parade along the road during the Finnish Civil War (1918), after German forces, allied with Mannerheim's Finnish forces, had retaken the city.

The street is 5.5 kilometres long and begins at Erottaja in the city centre, near the Swedish Theatre and continues in a northernly direction past the Stockmann department store. It then continues as a main thoroughfare past the districts of Kamppi, Töölö, Meilahti, Laakso and Ruskeasuo, until it finally merges into the busy Tampere Highway (E12), which leads outside the city towards Hämeenlinna and Tampere. (Geographically, the highway only ends in central Tampere, as a small street called Kalevan Puistotie.)