Australian republicanism is a political movement advocating for Australia to become a republic, replacing the British monarch as the head of state with an Australian president. This idea gained momentum in the 1990s, particularly during the 1999 referendum, where Australians voted on whether to establish a republic. Supporters of republicanism argue that it would promote national identity and self-determination, while critics often express concerns about the potential loss of stability and tradition associated with the monarchy. The debate continues, reflecting differing views on Australia's constitutional future and its ties to the British Commonwealth.