1811 in Australia
- Monarch - George III
Exploration and settlement
- 1 December – During a tour of Van Diemen's Land, Governor Macquarie gave directions for the layout of Hobart. There was a central square and seven streets named Macquarie, Liverpool, Argyle, Elizabeth, Murray, Harrington and Collins.
- 5 April – Thomas Reibey, husband of Mary Reibey, leaving her in control of large colonial business enterprises.