The following lists events that happened during 1811 in Australia.

Incumbents Monarch – George III

Governors Governors of the Australian colonies: Governor of New South Wales – Lachlan Macquarie Lieutenant-Governor of Tasmania – unfilled until 1813

Events 1 February – John Oxley is appointed Surveyor-General of New South Wales. 2 December – Reverend Samuel Marsden sent the first commercial shipment of wool from New South Wales to England.

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.

Births 21 July – Robert Mackenzie, future Premier of Queensland from August 1867 to November 1868.

Deaths 5 April – Thomas Reibey, husband of Mary Reibey, leaving her in control of large colonial business enterprises.

References