Keskuskatu (Finnish, Swedish: Centralgatan), meaning "central street", is a two block long walking street in the centre of Helsinki, Finland. Along the street are located, counting from the southern end on Pohjoisesplanadi street, the Stockmann department store, the Rautatalo building, Domus Litonii, WTC Helsinki and the shopping centre City-Center, nicknamed "Makkaratalo" ("sausage house"). Keskuskatu ends at Kaivokatu opposite to the Helsinki Central railway station. Halfway through the street it is crossed by Aleksanterinkatu.

The street was originally named Hakasalmenkatu (Swedish: Hagasundsgatan) and only reached northwards from Aleksanterinkatu. The idea to punch the street through a city block to help traffic between the Esplanadi park and the central railway station was first proposed by Helsingin Rakennuskauppa Oy in 1913. An architecture contest about the street was announced at the time, but its implementation was prevented by the first World War.