The 1943 Australian federal election was held in Australia on 21 August 1943. All 74 seats in the House of Representatives and 19 of the 36 seats in the Senate were up for election. The incumbent Labor Party, led by Prime Minister John Curtin, defeated the opposition Country–UAP coalition led by Arthur Fadden in a landslide. This was the last major election that did not involve the current Liberal and Labor Party competition.