1818 in Australia
The following lists events that happened during 1818 in Australia.
Incumbents
- Monarch - George III
Governors
Governors of the Australian colonies:- Governor of New South Wales – Lachlan Macquarie
- Lieutenant-Governor of Van Diemen's Land – Colonel William Sorell
Events
- 8 January – Governor Macquarie accuses Samuel Marsden of conspiracy against him
- 3 March – Throsby, Hume and Meehan discover an overland route to Jervis Bay
- 19 April – Phillip Parker King discovers Port Essington
- 28 May – John Oxley leaves Bathurst to explore along the Macquarie River
- 1 October – At least six Wodiwodi people are killed by nine European settlers in the Minnamurra River massacre.
- The Royal Tasmanian Botanical Gardens is first opened.
Births
- 22 March – John Ainsworth Horrocks, pastoralist and explorer
- 21 May – S. T. Gill, artist
- 5 August - Sir Thomas Elder, South Australian politician and pastoralist
- 13 August – Edward Wise, New South Wales Supreme Court judge
- 5 September – Edmund Kennedy, explorer
- Unknown – Eliza Winstanley, stage actress and writer