The following lists events that happened during 1820 in Australia.

Incumbents

*Monarch –

George III George III (George William Frederick; 4 June 173829 January 1820) was King of Great Britain and of Ireland from 25 October 1760 until the union of the two kingdoms on 1 January 1801, after which he was King of the United Kingdom of Great Br ...

until 29 January 1820 then

George IV George IV (George Augustus Frederick; 12 August 1762 – 26 June 1830) was King of the United Kingdom of Great Britain and Ireland and King of Hanover from the death of his father, King George III, on 29 January 1820, until his own death ten y ...

Governors

Governors of the Australian colonies: *

Governor of New South Wales The governor of New South Wales is the viceregal representative of the Australian monarch, King Charles III, in the state of New South Wales. In an analogous way to the governor-general of Australia at the national level, the governors of the ...

- Major-General Lachlan Macquarie *

Lieutenant-Governor of Tasmania The governor of Tasmania is the representative in the Australian state of Tasmania of the Monarch of Australia, currently King Charles III. The incumbent governor is Barbara Baker, who was appointed in June 2021. The official residence of the ...

– Colonel William Sorell

Events

* 3 May –

John Joseph Therry John Therry (1790 - 25 May 1864) was an Irish Roman Catholic priest in Sydney, Australia. Early life John Therry was born in Cork and was privately educated at St Patrick's College in Carlow. In 1815 he was ordained as a priest. He did parish w ...

and Philip Conolly, the first

Catholic The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

priests officially appointed to Australia, arrive at Port Jackson from Ireland. * 19 August –

Joseph Wild Joseph Wild (1759–1837) held a number of titles throughout his life, namely a convict, explorer, shepherd, constable and conveyor. He was convicted of burglary and was eventually sentenced to transportation to Australia. This was a common pu ...

discovers Lake George and names the

Snowy Mountains The Snowy Mountains, known informally as "The Snowies", is an IBRA subregion in southern New South Wales, Australia, and is the tallest mountain range in mainland Australia, being part of the continent's Great Dividing Range cordillera system ...

. * 28 October –

Governor Macquarie Major General Lachlan Macquarie, CB (; gd, Lachann MacGuaire; 31 January 1762 – 1 July 1824) was a British Army officer and colonial administrator from Scotland. Macquarie served as the fifth Governor of New South Wales from 1810 to 1821, an ...

names Lake George after

King George III George III (George William Frederick; 4 June 173829 January 1820) was King of Great Britain and of Ireland from 25 October 1760 until the union of the two kingdoms on 1 January 1801, after which he was King of the United Kingdom of Great Br ...

. * 1 December –

Campbelltown, New South Wales Campbelltown is a suburb located on the outskirts of the metropolitan area of Sydney, New South Wales, Australia. It is located in Greater Western Sydney south-west of the Sydney central business district by road. Campbelltown is the admini ...

is established. * Sydney has 1,084 buildings – mostly single-storey dwellings – and 12,079 people. * Sheep population in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

- 120,000.

Births

* 14 May – James Martin (died 1886), Premier of New South Wales

References

{{DEFAULTSORT:1820 in Australia

Years of the 19th century in Australia