Subiaco is an inner-western suburb of Perth, the capital of Western Australia. It is approximately 3 km (1.9 mi) west of Perth's central business district, in the City of Subiaco local government area. Historically a working-class suburb containing a mixture of industrial and commercial land uses, since the 1990s the area has been one of Australia's most celebrated urban redevelopment projects. It remains a predominantly low-rise, urban village neighbourhood centred around Subiaco train station and Rokeby Road.

The western suburbs are an informally defined group of suburbs of Perth, Western Australia, located west of the city's central business district and north of the Swan River. The western suburbs are well known for high incomes, high house prices, riverfront mansions, private schools and proximity to ocean peaches.