The governor of South Australia is the representative in South Australia of the monarch, currently . The governor performs the same constitutional and ceremonial functions at the state level as does the governor-general of Australia at the national level. In accordance with the conventions of the Westminster system of parliamentary government, the governor nearly always acts solely on the advice of the head of the elected government, the premier of South Australia. Nevertheless, the governor retains the reserve powers of the Crown, and has the right to dismiss the premier. As from June 2014, Queen Elizabeth II, upon the recommendation of the premier, accorded all current, future and living former governors the title 'The Honourable' for life. The first six governors oversaw the colony from proclamation in 1836, until self-government and an elected Parliament of South Australia was granted in the year prior to the inaugural 1857 election.
The first Australian-born governor of South Australia was Major-General Sir James Harrison (appointed 1968), and most subsequent governors have been Australian-born. The first South Australian-born governor was Sir Mark Oliphant (appointed 1971), and the first Aboriginal governor was Sir Douglas Nicholls (appointed 1976).
The current governor is diplomat Frances Adamson who was sworn in at Government House, Adelaide on 7 October 2021, replacing Hieu Van Le, who held the role from 2014 to 2021.
The governor's official residence is Government House, in Adelaide, the state's capital.
Prior to self-government, the governor was responsible to the Government of the United Kingdom and was charged with implementing laws and policy. Currently, the governor is responsible for safeguarding the South Australian Constitution and facilitating the work of the Parliament and state government.
The governor exercises power on the advice of ministers, conveyed through the Executive Council. Constitutional powers bestowed upon the governor and used with the consent and advice of the Executive Council include:
The governor additionally maintains 'reserve powers' which can be used without the consent of the Executive Council. These powers relate to the appointment and dismissal of ministers and Parliament.
Although not a responsibility of the office of Governor of South Australia, governors of South Australia are - like all Governors of the Australian states - normally given a dormant commission to administer the government of the Commonwealth of Australia in the absence from Australia, or the death, incapacity or removal from office of the Governor-General by the Sovereign. Some South Australian governors are also appointed as a Deputy of the Governor-General to perform certain responsibilities of the Governor-General while the Governor-General is present in Australia, but unable to perform them personally.
The governor standard of South Australia is the same design as the British blue ensign with the Union Flag at the upper left quarter. On the right side, the State Badge of South Australia, comprising a piping shrike in a golden disc, is surmounted by a crown. In 2024, this representation changed from a St Edward's Crown to a Tudor Crown.
If the standard is flying at Government House, on a vehicle or at an event, this indicates that the governor is present.
The governor of South Australia supports outstanding achievers within the South Australian community through the presentation of a number of annual awards:
The governor also awards a series of commendations for excellence in the SACE year 12 exams, including:
These people administered the government in the absence of the official governor.