South Perth is an inner suburb of Perth, the capital of the Australian state of Western Australia. Its local government area is the City of South Perth.

South Perth is separated from the Perth central business district (CBD) by Perth Water, a section of the Swan River. It is connected to the CBD via the Narrows Bridge which carries the Kwinana Freeway and Mandurah railway line. Public ferries are also operated by Transperth between the Mends Street Jetty in South Perth and Elizabeth Quay Jetty in the CBD.

South Perth is primarily residential, with commercial areas along major thoroughfares such as Canning Highway, Mill Point Road and Angelo Street. It has extensive river frontage, including the South Perth Esplanade and Sir James Mitchell Park, with highdensity areas around Mill Point and Point Belches facing the Perth skyline. The suburb also includes the Perth Zoo and Royal Perth Golf Club.