Stanley Melbourne Bruce, 1st Viscount Bruce of Melbourne (15 April 1883 – 25 August 1967) was an Australian politician, statesman and businessman who served as the eighth prime minister of Australia from 1923 to 1929. He held office as the leader of the Nationalist Party, having previously served as the treasurer of Australia from 1921 to 1923.
Born into a briefly wealthy Melbourne family, Bruce studied at the University of Cambridge and played a leading role in his family's softgoods firm following the suicide of his father John Munro Bruce. He served on the front lines of the Gallipoli Campaign in World War I and returned to Australia wounded in 1917, becoming a spokesman for government recruitment efforts. He gained the attention of the Nationalist Party and prime minister Billy Hughes, who encouraged a political career. He was elected to the House of Representatives in 1918, becoming member of parliament (MP) for the seat of Flinders. He was appointed as treasurer in 1921, before replacing Hughes as prime minister in 1923. He established an anti-socialist coalition government with the agrarian Country Party, working closely with Country leader Earle Page in an arrangement that pioneered the modern Liberal–National coalition.