An election for the leadership of the Liberal Party of Australia took place on 20 December 1972, following former prime minister William McMahon's resignation after his defeat at the 1972 federal election. Billy Snedden was successful in winning the leadership, narrowly beating Nigel Bowen by 30 votes to 29 on the fifth ballot. The previous ballot was tied at 29 each, with one MP not voting. James Killen, John Gorton, and Malcolm Fraser had earlier been eliminated from contention, in that order.