The Premier of South Australia is the head of government in the Australian state of South Australia. The Government of South Australia follows the Westminster system, with the Parliament of South Australia acting as the legislature. The Premier is appointed by the Governor of South Australia, and by modern convention holds office by virtue of their ability to command the support of a majority of members of the lower house of Parliament, the House of Assembly.
Peter Malinauskas is the current Premier, having served since 21 March 2022. Thomas Playford IV is the longest serving Premier, and the longest serving head of government in Australian history, serving for over 26 years from 1938 until 1965, holding on to power thanks the Playmander.
