Flag Officer

A Flag Officer is a naval term for the most senior ranks, usually OF-6 and above. This is similar to a General Officer in other forces.

Whilst the term Flag Officer is generally applied to all General Officers in any force, there is a legal distinction in the US Navy and Royal Navy. Whilst officers may have been promoted to "flag rank" (Rear Admiral or above), only a select few are actually authorised to fly their flags and thus become Flag Officers.

Officer Ranks
Service	Cadet	OF-D	OF-1	OF-2	OF-3	OF-4	OF-5	OF-6	OF-7	OF-8	OF-9	OF-10	All
British Army, Royal Marines	OCdt	2LT	Lt	Capt	Maj	Lt Col	Col	Brig	Maj Gen	Lt Gen	Gen	FM	all
Royal Navy	O/C	Mid	SLt	Lt	Lt Cdr	Cdr	Capt	Cdre	RAdm	VAdm	Adm	AotF	all
US Army, USAF, USMC	Cadet	2LT	1LT	CPT	MAJ	LTC	COL	BG	MG	LTG	GEN	GA	all
US Navy	MIDN	ENS	LTJG	LT	LCDR	CDR	CAPT	RDML	RADM	VADM	ADM	FADM	all