Junior officer

Junior officer, company officer or company grade officer refers to the lowest operational commissioned officer category of ranks in a military or paramilitary organization, ranking above non-commissioned officers and below senior officers.

Comparative military ranks in English
Armies
Air forces
Space forces		 Navies Air forces
(Commonwealth system)
Commissioned officers
Field marshal or
General of the army or
General of the air force		 Admiral of
the fleet		 Marshal of
the air force
General Admiral Air chief marshal
Lieutenant general Vice admiral Air marshal
Major general Rear admiral Air vice-marshal
Brigadier or
brigadier general		 Commodore Air commodore
Colonel Captain Group captain
Lieutenant colonel Commander Wing commander
Major or
commandant		 Lieutenant
commander		 Squadron leader
Captain Lieutenant Flight lieutenant
Lieutenant or
first lieutenant		 Lieutenant
junior grade or
sub-lieutenant		 Flying officer
Second lieutenant Ensign or
midshipman		 Pilot officer
Officer cadet Officer cadet Flight cadet
Enlisted grades
Warrant officer or
sergeant major		 Warrant officer or
chief petty officer		 Warrant officer
Sergeant Petty officer Sergeant
Corporal or
bombardier		 Leading seaman Corporal
Private or
gunner or
trooper or
specialist		 Seaman Aircraftman or
airman or
aviator

The terms company officer or company-grade officer are used more in the Army, Air Force, or Marine Corps as the ranks of captain, lieutenant grades and other subaltern ranks originated from the officers in command of a company or equivalent (cavalry squadron/troop and artillery battery).[1][2][3][4]

In many armed forces, a junior officer is specifically a commissioned officer holding rank equivalent to a naval lieutenant, an army captain or a flight lieutenant or below.

In the United States Armed Forces, the term junior officer is used by the Navy and the Coast Guard for officers in the ranks of ensign (O-1), lieutenant, junior grade (O-2), lieutenant (O-3),and lieutenant commander (O-4).

See also

References
  1. "Commissioned Officers". Ranks. CanadianSoldiers.com. Retrieved 31 January 2013.
  2. "Captain". Ranks. canadiansoldiers.com. Retrieved 4 February 2013.
  3. "Lieutenant". Ranks. canadiansoldiers.com. Retrieved 4 February 2013.
  4. "company officer". Free Merriam-Webster Dictionary. Merriam-Webster, Inc. Retrieved 4 February 2013.


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