1830 in Australia
- 20 September - The Port Arthur penal settlement was established.
- 23 September - The Bathurst Rebellion begins outside Bathurst, New South Wales, following the escape of a group of convicts known as the 'Ribbon Gang' under the leadership of convict-servant Ralph Entwistle. Ten of the rebels are later captured and publicly hung after being tried and found guilty of murder.
- 7 October - The 'Black Line' campaign of the Black War begins in an attempt to capture all Tasmanian Aborigines. The campaign lasts 7 weeks and only succeeds in bringing two Aborigines to the authorities.
- Wool export in Australia - 2 million pounds.