1825 in Australia
The following lists events that happened during 1825 in Australia.
Incumbents
- Monarch - George IV
Governors
Governors of the Australian colonies:- Governor of New South Wales – Major-General Sir Thomas Brisbane
- Lieutenant-Governor of Tasmania – Colonel George Arthur
Events
- 14 June – Van Diemen's Land is separated administratively from New South Wales.
- 3 December – Van Diemen's Land becomes fully independent from New South Wales. The Legislative Council of Tasmania is established and George Arthur, former Lieutenant-Governor, is promoted as its first Governor.
Exploration and settlement
- 4 March – A penal settlement is established on Maria Island, Tasmania.
- Brisbane is founded.
Deaths
- 25 February – Aboriginal bushranger, Musquito is hanged at Hobart.
- 7 December - John Ovens, explorer