The South Metropolitan Area Health Service (SMAHS) is part of the Western Australian Government's public health service. SMAHS caters for the population residing south of the Swan River and is the fastest growing health service in Western Australia.

To meet the needs of current and future population, there will be significant growth in health services and facilities in the southern metropolitan area in the coming decade.   Major projects already commissioned include the development of a new public tertiary hospital – the Fiona Stanley Hospital in Murdoch – and major upgrades to the Rockingham-Kwinana District Hospital, the Peel Health Campus and the Armadale-Kelmscott Memorial Hospital.

Services in the SMAHS are provided from two major teaching hospitals, Fremantle and Royal Perth; three general hospitals, Armadale Health Service, Bentley Health Service, and Rockingham-Kwinana District Hospital. Area Mental Health and Public Health Services are also provided.