The Australian Government on 1 January 1921
Prime Minister: Billy Hughes (Nationalist) · 8th Parliament
Changes taking effect on this day
- Commonwealth Government Line of Steamers merged into Australian Commonwealth Shipping Board
- Commonwealth Naval Dockyard merged into Australian Commonwealth Shipping Board
- Federal Capital Director of Design and Construction replaced by Federal Capital Advisory Committee
- Department of Defence part split off to form Munitions Supply Board
- Inter-State Commission replaced by Tariff Board
Departments of State (10)
- Attorney-General's Department1901–present
- Department of Defence1901–1921
- Department of Home and Territories1916–1928
- Department of the Navy1915–1921
- Department of the Treasury1901–present
- Department of Trade and Customs1901–1956
- Department of Works and Railways1916–1932
- Postmaster-General's Department1901–1975
- Prime Minister's Department1911–1971
- Repatriation Department1918–1974
Other bodies (62)
Central government
- Audit Office 1902–1998
- Chief Electoral Office 1902–1973
- Governor-General's Office 1901–1984
- Office of the Public Service Commissioner 1902–1923
Parliament
- Department of the House of Representatives 1901–present
- Department of the Parliamentary Library 1901–2004
- Department of the Parliamentary Reporting Staff 1901–2004
- Department of the Senate 1901–present
- Joint House Department 1901–2004
Law, justice & security
- Commonwealth Board of Censors 1917–1928
- Commonwealth Crown Solicitor's Office 1903–1984
- Commonwealth Investigation Branch 1919–1946
- High Court of Australia 1903–present
- Northern Territory Police Force 1911–1978
- Supreme Court of the Northern Territory 1911–1927
Treasury & finance
- Commonwealth Bank of Australia 1911–1960
- Commonwealth Bureau of Census and Statistics 1905–1974
- Federal Taxation Office 1914–1973
- Note Printing Branch 1913–1998
- Notes Board 1920–1924
- Royal Commission on Taxation 1920–1923
- Royal Commission upon the Public Expenditure of the Commonwealth of Australia with a View to Effecting Economies 1918–1921
- Tariff Board 1921–1974
Industry, science & resources
- Australian Survey Office 1910–1987
- British Phosphate Commissioners 1920–1981
- Commonwealth Institute of Science and Industry 1920–1926
- Commonwealth Oil Refineries Limited 1920–1952
- Designs Office 1907–1933
- Patent Office 1904–1992
- Trade Marks Office 1906–1933
Health, ageing & disability
- Australian Institute of Tropical Medicine 1910–1930
- Commonwealth Quarantine Service 1909–1921
- Commonwealth Serum Laboratories 1916–1961
Social services & housing
- Invalid and Old-Age Pensions Office 1909–1941
Employment & workplace
Transport & infrastructure
- Australian Commonwealth Shipping Board 1921–1933
- Commonwealth Railways 1917–1975
Communications & media
- Cinema and Photographic Branch 1913–1940
Arts, sport & collections
- Australian War Museum 1919–1925
- Commonwealth Art Advisory Board 1912–1973
- Commonwealth Literary Fund 1908–1973
Indigenous affairs
- Aboriginals Department 1911–1939
Territories & national capital
- Administration of Nauru 1921–1968
- Administration of the Territory of Papua 1906–1942
- Expropriation Board 1920–1927
- Federal Capital Advisory Committee 1921–1925
- Norfolk Island Administration 1914–1979
- Northern Territory Administration 1911–1927
Agriculture, fisheries & forestry
- Commonwealth Prickly Pear Board 1920–1939
Environment & water
- Bureau of Meteorology 1908–present
- River Murray Commission 1917–1988
Defence & veterans
- Air Board 1920–1976
- Australian Commonwealth Naval Board 1911–1976
- Commonwealth Government Clothing Factory 1912–1989
- Commonwealth Harness, Saddlery and Leather Accoutrements Factory 1911–1929
- Commonwealth Small Arms Factory 1912–1989
- Commonwealth Woollen Mills 1915–1923
- Explosives Factory Maribyrnong 1910–1989
- Military Board 1905–1976
- Munitions Supply Board 1921–1940
- Repatriation Commission 1918–present
- War Service Homes Commission 1919–1947