What does commissioner mean?
A commissioner is an official who has been formally appointed — given a 'commission' — to carry out duties on behalf of a government, institution, or organisation. The title appears across many domains: a police commissioner leads a force, an election commissioner supervises voting, a high commissioner represents one Commonwealth nation in another, and a sports commissioner governs a professional league. Because the word signals delegated authority rather than elected office, it often connotes administrative expertise and public trust. The term derives from Latin roots relating to entrusting a task to someone, and it remains a staple of bureaucratic, legal, diplomatic, and sporting vocabulary throughout the English-speaking world.
nounA person officially appointed to a position of authority and responsibility, especially one in charge of a government department, public body, or specific area of administration such as police, taxation, or sport.
- A government official appointed to head a department or public agency (e.g. police commissioner, tax commissioner).
- A person appointed to a special task, inquiry, or representative role (e.g. high commissioner, royal commissioner).
- A member of an official commission or board charged with a specific duty.
- (Sport/business) A chief executive officer overseeing a league or organisation, e.g. the Commissioner of Major League Baseball.
"The city appointed a new commissioner to oversee housing policy."
"The election commissioner announced that polling stations would remain open until 8 p.m."
"As High Commissioner, she represented her country's interests in the Commonwealth nation."
Regular plural; used when referring to multiple officeholders collectively, e.g. members of a commission.
"The three commissioners voted unanimously to approve the plan."
The word 'commissioner' literally means someone who has been entrusted with a commission — a formal charge to act on someone else's behalf, a concept dating back to Roman law.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of commissioner
'Commissioner' derives from the noun 'commission', from Latin 'commissio' meaning 'a handing over' or 'entrusting', formed from 'com-' ('together') and 'mittere' ('to send'). The word entered English in the medieval period via Old French, and by the early modern era 'commissioner' had become established as the title of officials entrusted with specific public duties. It shares its root with related terms such as 'committee', 'commit', and 'mission'.
Related word forms
How commissioner is actually used
'Commissioner' is a formal title denoting official appointment by a governing authority; it carries connotations of delegated authority and public trust. In British usage, 'High Commissioner' refers to the senior diplomatic representative of one Commonwealth country in another (equivalent to an ambassador); in US usage, commissioners typically head municipal departments or state agencies. The term is also used informally-but-officially in sports leagues, where the commissioner acts as chief executive.
Easily confused with commissioner
A commissionaire is a uniformed doorkeeper or attendant (especially at a hotel or former military men employed as doormen), whereas a commissioner is an official holding a commission to exercise authority.