Officer
An officer is a person who has a position of authority in a hierarchical organization. The term derives from Old French oficier "officer, official", from Medieval Latin officiarius "an officer," from Latin officium "a service, a duty" the late Latin from officiarius, meaning "official."
Examples
Ceremonial and other contexts
- Officer, and/or Grand Officer, are both a grade, class, or rank of within certain chivalric orders and orders of merit, e.g. Legion of Honour, Order of the Holy Sepulchre, Order of the British Empire, Order of Leopold
- Great Officer of State
- Merchant marine officer or licensed mariner
- Officer of arms
- Officer in The Salvation Army, and other state decorations
Corporations
- Bank officer
- Corporate officer, a corporate title
- *Chief executive officer
- *Chief financial officer
- *Chief operating officer
- Executive officer
Education
- Chief academic officer, a provost
- Sabbatical officer
Law enforcement
- Bylaw enforcement officer
- Corrections officer
- Customs officer
- Environmental Health Officer
- Officer of the court
- Parking enforcement officer
- Police officer
- *Police community support officer
- Security officer
Military
- Officer
- Commanding officer
- Petty officer
Politics and government
- Chief Medical Officer
- Foreign Service Officer, a diplomatic officer
- Internal Service Officer, a diplomatic officer
- Presiding Officer
- Returning officer
Shipping industry
- Captain, the person in charge of a merchant ship
- Chief Engineering Officer, the person in charge of the technical department on a merchant ship
- Chief officer or chief mate, typically the person in charge of the deck department of a merchant ship
- Coastguard Rescue Officer, a rescue officer employed by HM Coastguard
- Second officer or second mate, typically the navigator and medical officer on a merchant ship
- Third officer or third mate, typically the safety officer on a merchant ship
- Second Engineering Officer, the person in charge of the engine room on a merchant ship
- Third Engineering Officer, an Engineering Officer of the Watch