Ben Chifley, Australian engineer and politician, 16th Prime Minister of Australia (died 1951)

Joseph Benedict Chifley was an Australian politician and train driver who served as the 16th prime minister of Australia from 1945 to 1949. He held office as the leader of the Labor Party (ALP), and was notable for defining Australia's post-war reconstruction efforts, enacting social and immigration reform and advancing the nationalisation of essential industries.

The prime minister of Australia is the head of government of the Commonwealth of Australia. The prime minister is the chair of the Cabinet of Australia and thus the head of the federal executive government. Under the principles of responsible government, the prime minister is both responsible to and a member of the Commonwealth Parliament. The current prime minister is Anthony Albanese of the Australian Labor Party, who assumed the office on 23 May 2022.