1815 in Australia

• Monarch - George III

Governors of the Australian colonies:

• Governor of New South Wales – Lachlan Macquarie
• Lieutenant-Governor of Van Diemen's Land – Major Thomas Davey

• 14 January – The road over the Blue Mountains is completed to the Macquarie River.
• 7 April – Bathurst, New South Wales is founded following its discovery by George Evans. It is Australia's first inland European settlement.
• 1 May – The Supreme Court opens and William Broughton and Alexander Riley are appointed as its first judges.
• 25 May – George William Evans discovers the Lachlan River.
• 12 December – Captain James Kelly sets out on circumnavigation of Tasmania, during which important observations are made on the resources of the west coast.
• A single ship carries 60,000 sealskins to London from Australia (a normal cargo contains at least 10,000 skins).

• 27 May – Henry Parkes
• 5 August – Edward John Eyre
• 7 September – John McDouall Stuart

• 9 January – Augustus Alt
• 10 November – Ellis Bent
• 11 November – Maurice Margarot

• Barker, Anthony (1996). What Happened When. St Leonards: Allen & Unwin. ISBN 978-1-86373-986-3.