Centretown is a neighbourhood in Ottawa defined by the city as the area bounded on the north by Gloucester Street and Lisgar Street, on the east by the Rideau Canal, on the south by the Queensway Freeway and on the west by Bronson Avenue.

Centretown is marked by a mix of residential and commercial properties. The main streets such as Bank Street and Elgin Street are largely commercial, while the smaller ones, notably Maclaren and Gladstone are more residential. Much of the area still consists of original single family homes, but there are newer infill and townhouse developments and low-rise and high-rise apartment buildings.

Golden Triangle is the name for the property triangle in Ottawa between Elgin Street and the Rideau Canal. The area is bordered by Ottawa City Hall to the north and to the south by the Elgin Street Police station. It is dominated by large single family homes (many have been subdivided), with a number of condominiums and small apartment buildings.