Legislative branch:
- Governor-General: ceremonial head of state appointed by the Queen of Australia
- Prime Minister: head of government and leader of the party or coalition with a majority in the House of Representatives
- Minister: head of a government department
- Assistant Minister: assists a Minister in their duties
- Parliamentary Secretary: assists a Minister with specific responsibilities
- Member of Parliament (MP): elected representative in the House of Representatives or the Senate
Executive branch:
- Secretary of a Department: highest-ranking public servant in a government department
- Deputy Secretary: senior public servant who assists the Secretary
- Assistant Secretary: senior public servant who reports to a Deputy Secretary
- First Assistant Secretary: senior public servant who reports to an Assistant Secretary
- Second Assistant Secretary: public servant who reports to a First Assistant Secretary
Judicial branch:
- Chief Justice of Australia: head of the High Court of Australia
- Justice of the High Court: judge of the High Court of Australia
- Chief Justice of a Federal Court: head of a federal court (e.g., Federal Court of Australia, Federal Circuit Court of Australia)
- Judge of a Federal Court: judge of a federal court
These ranks may vary slightly across different jurisdictions and government agencies in Australia.
