1855 in Australia

Incumbents

Governors

• Governor of New South Wales – Sir Charles Augustus FitzRoy
• Governor of South Australia – Sir Richard MacDonnell
• Lieutenant-Governor of Van Diemen's Land – Henry Young
• Lieutenant-Governor of Victoria – Sir Charles Hotham
• Governor of Western Australia as a Crown Colony – Captain Charles Fitzgerald

  Events

• 8 September – Queen Victoria signs an Order in Council to change the name of Van Diemen's Land to Tasmania.

  Births

• 28 May – William Portus Cullen, judge and politician
• 28 October – Francis James Gillen, an early anthropologist who studied Indigenous culture.

  Deaths

• 3 April – John Bateman, Fremantle pioneer, merchant and whaler
• 23 January – John Burdett Wittenoom, Swan River Colony clergyman
• 31 December – Charles Hotham, Governor of Victoria
• 19 March – Thomas Bock, artist