26 January – Foundation Day is renamed Australia Day.
18 February – The Archbishop of Sydney, Dr. Norman Gilroy, becomes Cardinal Gilroy, the first Australian born member of the College of Cardinals
10 March – An Australian National Airways DC-3 aircraft crashes near Hobart, killing 25 people.
1 May – At least 800 Aboriginal pastoral workers walk off the job in Northwest Western Australia, starting one of the longest industrial strikes in Australia.
6 June – The ABC makes the first national broadcast of a federal parliamentary debate.
19 July – Orange, New South Wales is proclaimed a city.
30 August – Lismore, New South Wales is proclaimed a city.
9 September – Trans Australia Airlines makes its first flight.
28 September – A federal election is held. The Australian Labor Party and Prime MinisterBen Chifley are returned to power. A three-question referendum is also held: the question on Social Services is carried; questions on Marketing and Industrial Employment are not.
23 November – A general election is held in Tasmania. The Labor Party led by Robert Cosgrove is returned to power with a reduced majority.
13 December – The United Nations grants Australia trusteeship of Territory of New Guinea and Territory of Papua.
Science and technology[]
7 August – Overseas Telecommunications Commission established by an Act of Parliament in August 1946. It inherited facilities and resources from Amalgamated Wireless Australasia Limited (AWA) and Cable & Wireless, and was charged with responsibility for all international telecommunications services into, through and out of Australia.
14 September – Balmain win the 1946 NSWRFL season, defeating St. George 13–12 in the grand final. South Sydney, after not winning a game all season, finish in last place, claiming the wooden spoon for the second year in a row.
Morna takes line honours and Christina wins on handicap in the Sydney to Hobart Yacht Race
^Rob Van Den Hoorn (1983). Bede Nairn; Geoff Serle (eds.). Gordon, Sir David John (1865–1946). Australian Dictionary of Biography. Vol. 9. Melbourne University Press. Retrieved 3 January 2022.