← 1924 1923 1922 1925 in Australia → 1926 1927 1928
Decades:	1900s 1910s 1920s 1930s 1940s
See also:	Other events of 1925 Federal election Timeline of Australian history

The following lists events that happened during 1925 in Australia.

• Monarch – George V
• Governor-General – Henry Forster, 1st Baron Forster (until 8 October) then John Baird, 1st Viscount Stonehaven
• Prime Minister – Stanley Bruce
• Chief Justice – Adrian Knox

• Premier of New South Wales – George Fuller (until 17 June), then Jack Lang
• Premier of Queensland – Ted Theodore (until 26 February), then William Gillies (until 22 October), then William McCormack
• Premier of South Australia – John Gunn
• Premier of Tasmania – Joseph Lyons
• Premier of Victoria – John Allan
• Premier of Western Australia – Philip Collier

• Governor of New South Wales – Sir Dudley de Chair
• Governor of Queensland – Sir Matthew Nathan (until 17 September)
• Governor of South Australia – Sir Tom Bridges
• Governor of Tasmania – Sir James O'Grady
• Governor of Victoria – George Rous, 3rd Earl of Stradbroke
• Governor of Western Australia – Sir William Campion

• 26 January – Australia's oldest commercial radio station, 2UE, begins broadcasting in Sydney.^[1]
• 20 May – The Murrumbidgee River floods for eight days killing four people,^[2] as up to 500 millimetres (20 in) falls in its upper catchment.^[3]
• 30 May – Millicent Preston-Stanley becomes the first woman member of the New South Wales Legislative Assembly.
• 1 to 31 May – Canberra records its wettest month on record with 339.4 millimetres (13.36 in) at Acton^[4] and 297.4 millimetres (11.71 in) at Duntroon Military College.^[5]
• 3 June – A general election is held in Tasmania. The Labor government of Joseph Lyons is returned in a landslide victory.
• 9 June – Ten people are killed in a derailment near Traveston railway station, Queensland
• 1 September – Thomas Blamey becomes Chief Commissioner of Victoria Police.

• The Cactoblastis moth is introduced in Queensland to control prickly pear cactus.

• John Longstaff wins the Archibald Prize for his portrait of Maurice Moscovitch

• Victoria wins the Sheffield Shield
• 2 May – Footscray, Hawthorn and North Melbourne play their initial Victorian Football League matches.
• 8 August – South Sydney record the only perfect season in NSWRFL history, winning all twelve of their matches.
• 26 September – Geelong defeats Collingwood 10.19 (79) to 9.15 (69), becoming premiers of the 1925 VFL season.
• 3 November – Windbag wins the Melbourne Cup.

• 14 January – Ray Wilkie, meteorologist (d. 2023)
• 8 February – Francis Webb, poet (d. 1973)
• 10 February – Basil Hennessy, archaeologist (d. 2013)
• 11 February – George Avery, Olympic triple jumper (d. 2006)
• 12 February – Ted Innes, politician (d. 2010)
• 17 February – Joy Nichols, comedian and actress (d. 1992)
• 20 February – Pat Lanigan, public servant (d. 1992)
• 19 March – Creighton Burns, journalist and editor-in-chief of The Age (d. 2008)
• 27 March – Ian Robinson, politician (d. 2017)
• 4 April – Dorothy Alison, actress (d. 1992)
• 21 April – Anthony Mason, Chief Justice of the High Court
• 2 May – Lou Rowan, Test cricket match umpire (d. 2017)
• 19 May – Brian Moll, character actor, director and producer (d. 2010)
• 24 May – Alfred Parsons, diplomat (d. 2010)
• 4 June – Peter Benjamin Graham, artist (d. 1987)
• 9 June – Don Ritchie, Australian official (d. 2012)
• 3 July – Terry Moriarty, Australian rules footballer (d. 2011)
• 6 July – Ruth Cracknell, actor (d. 2002)
• 18 July
  • Raymond Jones, architect (d. 2022)
  • Shirley Strickland, athlete (d. 2004)
• 26 July – Neil O'Reilly, Australian rules footballer (d. 1985)
• 19 August – Laurie Sawle, cricketer (d. 2022)
• 21 August – Don Chipp, politician and founder of the Australian Democrats (d. 2006)
• 24 August – Duncan Hall, rugby league footballer of the 1940s and 1950s (d. 2011)
• 27 August – Fred Emery, psychologist (d. 1997)
• 27 August – Ken Grieves, cricketer (d. 1992)
• 27 August – Bill Neilson, Premier of Tasmania (1975–1977) (d. 1989)
• 24 September – Harry Jenkins (senior), politician (d. 2004)
• 4 October – Renfrey Potts, mathematician (d. 2005)
• 5 October – Murray Riley, Olympic rower (d. 2020)
• 18 October – Thomas Millar, historian (d. 1994)
• 24 October – Ken Mackay, cricketer (d. 1982)
• 5 November – Rhonda Small, filmmaker (d. 2014)
• 17 November – Charles Mackerras, conductor (d. 2010)
• 23 November – James Killen, politician (d. 2007)
• 10 December – Norm McDonald, Australian rules footballer (d. 2002)

• 24 January – William Aitcheson Haswell, zoologist (born in the United Kingdom) (b. 1854)
• 4 February – Richard Godfrey Rivers, artist (born and died in the United Kingdom) (b. 1859)
• 23 February – John Holman, Western Australian politician (b. 1872)
• 1 March – John Ferguson, minister (born in the United Kingdom) (b. 1852)
• 16 April – Thomas McCawley, 5th Chief Justice of Queensland (b. 1881)
• 20 April – Rose Scott, suffragette (b. 1847)
• 28 April – Sir Richard Butler, 23rd Premier of South Australia (born and died in the United Kingdom) (b. 1850)
• 22 June – Matthew Gibney, bishop (born in Ireland) (b. 1835)
• 27 June – Simpson Newland, South Australian politician, pastoralist and author (born in the United Kingdom) (b. 1835)
• 18 July – Edward Russell, Victorian politician (b. 1878)
• 26 July – William Trenwith, 1st Leader of the Victorian Labor Party (b. 1846)
• 30 August – Magnus Cromarty, New South Wales politician (b. 1875)
• 5 September – Reginald Augustus Frederick Murray, geologist and surveyor (born in the United Kingdom) (b. 1846)
• 6 or 8 September– Louisa Briggs, Aboriginal Australian rights activist, dormitory matron, midwife and nurse recognized as five apical ancestors from whom Boonwurrung descent is established (b. 1818 or 1836)
• 28 September – Joseph Brown, Victorian politician (born in the United Kingdom) (b. 1844)
• 3 October – Charles Web Gilbert, sculptor (b. 1867)
• 24 October – Charles Kenningham, opera singer and actor (born in the United Kingdom) (b. 1860)
• 4 November – Paddy Hannan, prospector (born in Ireland) (b. 1840)
• 13 November – Charles McDonald, Queensland politician (b. 1860)
• 16 November – Joseph Maiden, botanist (born in the United Kingdom) (b. 1859)

• List of Australian films of the 1920s