2 June – The Labor government of Andrew Fisher is ousted from office by Alfred Deakin's Fusion Party, and Deakin becomes Prime Minister for the third time.
21 August – Andrew Wood wins the inaugural men's national marathon title, clocking 2:59:15 in Brisbane. Though billed as the Australasian Championships, the Australian Athletic Union did not consider it to be the official championship.
31 August – The first interstate ice hockey competition is held in Melbourne.
14 September - The 1909 NSWRFL season culminates in the grand final which was forfeited by Balmain to make South Sydney back-to-back premiers
^A. F. Pike (1996). John Ritchie (ed.). Goffage, John William Pilbean (1909–1971). Australian Dictionary of Biography. Vol. 14. Melbourne University Press. Retrieved 3 January 2022.