See also: 1890 in Australia, other events of 1891, 1892 in Australia and the Timeline of Australian history.

Incumbents

• Premier of New South Wales - Henry Parkes (until October 23) then George Dibbs
• Premier of South Australia - Thomas Playford II
• Premier of Queensland - Samuel Griffith
• Premier of Tasmania - Philip Fysh
• Premier of Western Australia - John Forrest
• Premier of Victoria - James Munro

Events

• January 5 - The 1891 Australian shearers' strike begins, which leads to the formation of the Australian Labor Party
• June 17 - The Labor party first entered the New South Wales Legislative Assembly with 35 members elected.
• October 9 - The ceremonial mace is stolen from Victoria's Parliament House, Melbourne.

Census

Sport

• Malvolio wins the Melbourne Cup

Births

• April 30 – Pat O'Hara Wood, tennis player (d. 1961)
• September 26 – William McKell, Premier of NSW and Governor General of Australia (d. 1985)
• December 25 (in New Zealand) – Clarrie Grimmett, cricketer (d. 1980)

Deaths

• May 8 - John Robertson (b. 1816), Premier of New South Wales
• October 29 - Edward Hargraves (b. 1816), gold prospector
• December 7 - Arthur Blyth (b. 1823), Premier of South Australia

See also

• 1891
• 1800s