William Watt, Australian accountant and politician, 24th Premier of Victoria (died 1946)

William Alexander Watt was an Australian politician. He served two terms as Premier of Victoria before entering federal politics in 1914. He then served as a minister in the government of Billy Hughes from 1917 to 1920, including as acting prime minister during World War I, and finally as Speaker of the House of Representatives from 1923 to 1926.

The premier of Victoria is the head of government of the state of Victoria in Australia. The premier leads the Cabinet of Victoria and selects its ministers. The premier is appointed by the governor of Victoria, must be a member of the Victorian Legislative Assembly, and command confidence in the lower house of the Parliament of Victoria. The premier is usually the leader of the political party that holds a majority of lower house members.