1820 in Australia

Incumbents

• Monarch - George III until 29 January 1820 then George IV

  Governors

• Governor of New South Wales- Major-General Lachlan Macquarie
• Lieutenant-Governor of Tasmania - Colonel William Sorell

  Events

• 3 May - John Joseph Therry and Philip Conolly, the first Catholic priests officially appointed to Australia, arrive at Port Jackson from Ireland.
• 19 August - Joseph Wild discovers Lake George and names the Snowy Mountains.
• 28 October - Governor Macquarie names Lake George after King George III.
• 1 December - Campbelltown, New South Wales is established.
• Sydney has 1,084 buildings – mostly single-storey dwellings – and 12,079 people.
• Sheep population in Australia - 120,000.

  Births

• 14 May – James Martin, Premier of New South Wales