Wellington Street is the northernmost of the four primary east-west streets in the central business district of Perth, Western Australia. It is 3.7 kilometres (2.3 mi) long, stretching from Plain Street in East Perth to Thomas Street in West Perth.

Perth is a suburb in the Perth metropolitan region, Western Australia that includes both the central business district of the city, and a suburban area spreading north to the northern side of Hyde Park. It does not include the separate suburbs of Northbridge or Highgate. Perth is split between the City of Perth and the City of Vincent local authorities, and was named after the city of the same name in Scotland.