Arthur Augustus Calwell KCSG was an Australian politician who served as the leader of the Labor Party from 1960 to 1967. He led the party through three federal elections, losing each one in turn.

The Australian Labor Party (ALP), also commonly known as the Labor Party or simply Labor, is the major centre-left political party in Australia and one of two major parties in Australian politics, along with the centre-right Liberal Party of Australia. The party has been in government since being elected at the 2022 federal election, and with political branches in each state and territory, they currently form government in New South Wales, Queensland, South Australia, Victoria, Western Australia, the Australian Capital Territory, and the Northern Territory. As of 2023, Tasmania is the only state or territory where Labor forms the opposition. It is the oldest continuous political party in Australian history, being established on 8 May 1901 at Parliament House, Melbourne, the meeting place of the first federal Parliament.