Kyam Joseph Maher is an Australian politician who has been Attorney-General of South Australia and the Leader of the Government in the Legislative Council since March 2022. He was appointed to a casual vacancy in the South Australian Legislative Council for the South Australian Branch of the Australian Labor Party on 17 October 2012. He previously served in the Cabinet of South Australia between 2015 and 2018 and was the Leader of the Government in the Legislative Council between 2016 and 2018.