03/09/2026
Australian National Flag Day on 3 September marks the first time the Australian National Flag was flown during Australia’s year of Federation. On this date in 1901, the Rt Hon Edmund Barton announced the winners of an international competition to design a flag for our nation. A flag, measuring 5.5 metres by 11 metres, was flown over the dome of the Royal Exhibition Building in Melbourne, the site of Australia’s first Parliament.
This year marks the 125th anniversary of Federation, the adoption of the Constitution, the first sitting of Commonwealth Parliament on 9 May 1901, and the first official flying of the Australian National Flag. Australian National Flag Day is an opportunity for all Australians to come together to celebrate the values of fairness, aspiration and opportunity that unite us.