South Australian Labor Party

The South Australian Labor Party is the South Australian Branch of the Australian Labor Party. Originally formed in 1891 as the United Labor Party of South Australia, it is the major centre-left political party in South Australia and one of two major parties in South Australian politics, along with the centre-right Liberal Party. The party has been in government since the 2022 state election with the Malinauskas government.

Since the 1970 election, marking the beginning of democratic fair representation (one vote, one value) and ending decades of pro-rural electoral malapportionment known as the Playmander, Labor have won 11 of the 15 elections. Spanning 16 years and 4 terms, Labor was last in government from the 2002 election until the 2018 election. Jay Weatherill led the Labor government since a 2011 leadership change from Mike Rann. During 2013 it became the longest-serving state Labor government in South Australian history, and in addition went on to win a fourth four-year term at the 2014 election. After losing the 2018 election, the party spent 4 years in opposition before leader Peter Malinauskas led the party to a majority victory in the 2022 election.

Labor's most notable historic Premiers of South Australia include Thomas Price in the 1900s, Don Dunstan in the 1970s, John Bannon in the 1980s, and Mike Rann in the 2000s.