An officer is a person who has a position of authority in a hierarchical organization.
Officer (armed forces)
Captain (nautical), the person in charge of a merchant ship
Chief officer or chief mate, typically the person in charge of the deck department of a merchant ship
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
Chief Engineering Officer. The person in charge of the technical department 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.
Corrections officer
Customs officer
Officer of the court
Bylaw enforcement officer
Parking enforcement officer
Probation officer or Parole officer
Law enforcement officer or Peace officer
Police officer
Security officer
Politics and government
Chief Medical Officer
Presiding Officer (disambiguation)
Returning officer
Foreign Service Officer, a diplomatic officer
Ceremonial and other contexts
Bank officer
Chief academic officer, a provost
Corporate officer, a corporate title
First Officer (disambiguation)
Great Officer of State
Merchant marine officer or licensed mariner
Officer of arms
Officer, a grade, class, or rank of within certain chivalric orders and orders of merit (e.g. Order of the British Empire, National Order of the Cedar, Légion d'honneur)
Officer in The Salvation Army, and other state decorations
Sabbatical officer
Officer Wikipedia (Text) CC BY-SA