See also: 1927 in Australia, other events of 1928, 1929 in Australia and the Timeline of Australian history.

Incumbents

• Monarch King George V
• Governor-General John Baird, 1st Viscount Stonehaven
• Prime Minister Stanley Bruce

State premiers

• Premier of New South Wales Thomas Bavin
• Premier of Queensland William McCormack
• Premier of South Australia Richard Layton Butler
• Premier of Tasmania Joseph Lyons (until 15 June), then John McPhee
• Premier of Victoria Edmond Hogan (until 22 November), then William McPherson
• Premier of Western Australia Philip Collier

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 (from 14 May)
• Governor of Tasmania Sir James O'Grady
• Governor of Victoria Arthur Somers-Cocks, 6th Baron Somers
• Governor of Western Australia Sir William Campion

Events

• 22 February Bert Hinkler arrives in Darwin, Northern Territory after flying solo from London on 7 February, and then, later, he arrives in his hometown of Bundaberg, Queensland on 27 February.
• 17 May The Royal Flying Doctor Service of Australia makes its first official flight from Cloncurry to Julia Creek
• 8 June Charles Kingsford Smith and his crew arrive in Brisbane, Queensland, after completing the first flight across the Pacific Ocean in the "Southern Cross" after leaving the United States on 31 May.
• 20 December Hubert Wilkins makes the first flight over Antarctica in his Lockheed Vega San Francisco
• The first Speedos are produced

Science and technology

Arts and literature

• John Longstaff wins the Archibald Prize with his portrait of Dr Alexander Leeper
• Arthur Streeton wins the Wynne Prize with his landscape Afternoon Light, Goulburn Valley

Film

• 29 December The Jazz Singer becomes the first sound film screened in Australia. It premieres at the Lyceum Theatre in Sydney http://www.silentera.com/PSFL/data/J/JazzSinger1927.html

Sport

• 6 November Statesman wins the Melbourne Cup.
• Victoria wins the Sheffield Shield
• Bobby Pearce wins Australia's only gold medal at the 1928 Summer Olympics. He won the men's 200m sculls
• The first Australian Grand Prix is held at Phillip Island

Births

• 19 January John Treloar, track and field athlete
• 11 March June Maston, sprinter and athletics coach (died 2004)
• 2 April Denis Flannery, rugby league footballer of the 1940s and 1950s
• 30 May Pro Hart, artist (died 2006)
• 12 June Bob Davis, Australian rules footballer (died 2011)
• 18 July Russell Mockridge, cyclist (died 1958)
• 8 August Don Burrows, musician
• 12 August Charles Blackman, painter
• 28 November Steele Hall, Premier of South Australia
• 27 December Phillip Bennett, Governor of Tasmania

Deaths

• 9 February William Gillies (born 1868), Premier of Queensland
• 22 October Andrew Fisher (born 1862), Prime Minister of Australia