| George V|
| James Scullin|
SA, WA, NSW
| John Baird, Baronet Stonehaven|Monarch – King George V
Governor-General – John Baird, Baronet of Stonehaven
Prime Minister of Australia
Premier of New South Wales – Thomas Bavin (until 4 November), then Jack Lang
Premier of Queensland – Arthur Edward Moore
Premier of South Australia – Richard Layton Butler (until 17 April), then Lionel Hill
Premier of Tasmania – John McPhee
Premier of Victoria – Edmond Hogan
Premier of Western Australia – Philip Collier (until 24 April), then Sir James Mitchell
Governor of New South Wales – Sir Dudley de Chair
Governor of Queensland – Sir John Goodwin
Governor of South Australia – Sir Alexander Hore-Ruthven
Governor of Tasmania – Sir James O'Grady
Governor of Victoria – Arthur Somers-Cocks, 6th Baron Somers
Governor of Western Australia – Sir William Campion
11 November – The Shrine of Remembrance in Brisbane is dedicated.
6 January – Don Bradman scores a record 452 not out in one cricket innings.
25 January – Harry Hopman and Jack Crawford win the Australian Doubles Championship at Kooyong, Victoria.
4 October - The 1930 NSWRFL season culminates in Western Suburbs' victory over St. George in the premiership final
11 October - The VFL Grand Final was won by the Collingwood Football Club, defeating the Geelong Football Club by 30 points, and establishing an as yet unbeaten record in consecutive premierships in Australian Rules football's premier league.,
4 November – Phar Lap wins the Melbourne Cup.
The Australia national rugby league team completed the 1929–30 Kangaroo tour of Great Britain.
26 February – Lionel Cox, track cyclist (died 2010)
29 March – John Marshall, freestyle swimmer (died 1957)
30 March – Rolf Harris, entertainer
16 May – Brian Davies, rugby league footballer of the 1940s, 1950s and 1960s
26 September – Brian Oliver, long and triple jumper
18 January – Thorburn Robertson (born 1884), physiologist and biochemist
19 March – Sir Henry Lefroy (born 1854), Premier of Western Australia (1917–1919)
22 April – John Peter Russell (born 1858), Impressionist artist
21 May – Robert Cook (born 1867), politician
27 May – William Jethro Brown (born 1868), jurist and professor of law
20 August – Charles Bannerman (born 1851), cricketer
6 September – Archibald Strong (born 1876), poet
11 September – William Carpenter (born 1863), politician
1 October – Albert Henry Fullwood (born 1863), artist
1 October – Sir James Whiteside McCay (born 1864), Australian Army soldier
30 October – John Creed (born 1842), doctor and politician
13 November – Thomas Bulch (born 1862), musician and composer
14 November – Sandy Pearce (born 1883), rugby league player
1930 in Australia Wikipedia
See also: 1929 in Australia, 1931 in Australia and the Timeline of Australian history.