The suburbs of Johannesburg are officially demarcated areas within the City of Johannesburg Metropolitan Municipality, South Africa. As in other Commonwealth countries, the term suburb refers to a "neighbourhood", although in South Africa most "suburbs" have legally recognised borders and often separate postal codes. The municipal functions for the area, such as municipal policing and social services, are still managed by the city government.

The City of Johannesburg Metropolitan Municipality is a metropolitan municipality that manages the local governance of Johannesburg, the largest city in South Africa. It is divided into several branches and departments in order to expedite services for the city. Zulu is the most spoken home language at 23.4% followed by English at 20.1%.