State elections were held in South Australia on 9 February 2002. All 47 seats in the South Australian House of Assembly were up for election, along with half of the 22 seats in the South Australian Legislative Council. The incumbent Liberal Party of Australia led by Premier of South Australia Rob Kerin was defeated by the Australian Labor Party led by Leader of the Opposition Mike Rann. The Labor Party won 23 out of 47 seats, and then secured the one more seat it needed for a majority by gaining the support of independent Peter Lewis.

The South Australian Liberal Party, officially known as the Liberal Party of Australia (South Australian Division), and often shortened to SA Liberals, is the South Australian Division of the Liberal Party of Australia. It was formed as the Liberal and Country League (LCL) in 1932 and became the South Australian Division of the Liberal Party when the Liberal Party was formed in 1945. It retained its Liberal and Country League name before changing to its current name in 1974. It is one of two major parties in the bicameral Parliament of South Australia, the other being the Australian Labor Party (SA Branch). The party has been led by Leader of the Opposition David Speirs since the 2022 state election after a one-term government.