Captain (British Army and Royal Marines)

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Captain
Army and Royal Marines insignia
Country	United Kingdom
Service branch	British Army  Royal Marines
Abbreviation	Capt
NATO rank code	OF-2
Non-NATO rank	O-2
Formation	c. 1815
Next higher rank	Major
Next lower rank	Lieutenant
Equivalent ranks	Lieutenant (RN) Flight lieutenant (RAF)

Captain (Capt) is a junior officer rank of the British Army and Royal Marines and in both services it ranks above lieutenant and below major with a NATO ranking code of OF-2. The rank is equivalent to a lieutenant in the Royal Navy and to a flight lieutenant in the Royal Air Force. The rank of captain in the Royal Navy is considerably more senior (equivalent to the Army/RM rank of colonel) and the two ranks should not be confused.

In the 21st-century British Army, captains are often appointed to be second-in-command (2IC)^[1] of a company or equivalent sized unit of up to 120 soldiers.^[2]