1930 in Australia

Incumbents

• Monarch – George V
• Governor-General – John Baird, Baronet of Stonehaven
• Prime Minister – James Scullin
• Chief Justice – Adrian Knox then Isaac Isaacs

  State premiers

• Premier of New South Wales – Thomas Bavin, then Jack Lang
• Premier of Queensland – Arthur Edward Moore
• Premier of South Australia – Richard Layton Butler, then Lionel Hill
• Premier of Tasmania – John McPhee
• Premier of Victoria – Edmond Hogan
• Premier of Western Australia – Philip Collier, then Sir James Mitchell

  State governors

• 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

  Events

• 11 November – The Shrine of Remembrance in Brisbane is dedicated.

  Arts and literature

Sport

• 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, 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.

  Births

• 26 February – Lionel Cox, track cyclist
• 29 March – John Marshall, freestyle swimmer
• 11 April – Peter Toogood, golfer
• 11 April – Nancy Lyons, Olympic swimmer
• 16 May – Brian Davies, rugby league footballer of the 1940s, 1950s and 1960s
• 11 June – Neale Lavis, equestrian Olympic medallist
• 25 June – Alf Hughes, Australian rules footballer of the 1950s
• 6 July – Michael Baume, former Liberal Party politician
• 20 July – Bryan Conquest, politician
• 2 August – Vali Myers, visionary artist, dancer, bohemian and muse
• 26 September – Brian Oliver, long and triple jumper

  Deaths

• 18 January – Thorburn Robertson, physiologist and biochemist
• 19 March – Sir Henry Lefroy, Premier of Western Australia
• 22 April – John Russell, Impressionist artist
• 21 May – Robert Cook, politician
• 27 May – William Jethro Brown, jurist and professor of law
• 20 August – Charles Bannerman, cricketer
• 6 September – Archibald Strong, poet
• 11 September – William Carpenter, politician
• 1 October – Albert Henry Fullwood, artist
• 1 October – Sir James Whiteside McCay, Australian Army soldier
• 30 October – John Creed, doctor and politician
• 13 November – Thomas Bulch, musician and composer
• 14 November – Sandy Pearce, rugby league player