The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States.

U.S. Navy Ranks – Enlisted and Officer, from Lowest to Highest

An enlisted member enters the Navy as a Seaman Recruit. After completing basic training, the enlisted recuits advances to Seaman. The next notable advancement is to a Noncommissioned Officer.

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The highest rank attainable in the Navy is the five-star Fleet Admiral. In 1944, Congress created the rank Fleet Admiral to be granted to four people. There has been no authorization to use the rank since the World War II era.

See Also: U.S. Navy Salary By Ranking
U.S. Air Force Ranks And Symbols
U.S. Marine Corps Ranks And Symbols
All United States Armed Forces Branches, Ranks, Symbols, Abbreviations And Salaries

The table below lists all the standard ranks in the U.S. Navy and their respective pay grades, insignias, abbreviations, and classifications.

Pay Grade	Insignia	Rank	Abbreviation	Classification
E-1	No Insignia	Seaman Recruit	SR	Junior Enlisted
E-2		Seaman Apprentice	SA	Junior Enlisted
E-3		Seaman	SN	Junior Enlisted
E-4		Petty Officer Third Class	PO3	Noncommissioned Officer
E-5		Petty Officer Second Class	PO2	Noncommissioned Officer
E-6		Petty Officer First Class	PO1	Noncommissioned Officer
E-7		Chief Petty Officer	CPO	Senior Noncommissioned Officer
E-8		Senior Chief Petty Officer	SCPO	Senior Noncommissioned Officer
E-9		Master Chief Petty Officer	MCPO	Senior Noncommissioned Officer
E-9		Command Master Chief Petty Officer	CMDCM	Senior Enlisted Advisor
E-9		Master Chief Petty Officer Of The Navy	MCPON	Senior Enlisted Advisor
W-2		Chief Warrant Officer 2	CW2	Warrant Officer
W-3		Chief Warrant Officer 3	CW3	Warrant Officer
W-4		Chief Warrant Officer 4	CW4	Warrant Officer
W-5		Chief Warrant Officer 5	CW5	Warrant Officer
O-1		Ensign	ENS	Junior Officer
O-2		Lieutenant Junior Grade	LTJG	Junior Officer
O-3		Lieutenant	LT	Junior Officer
O-4		Lieutenant Commander	LCDR	Junior Officer
O-5		Commander	CDR	Senior Officer
O-6		Captain	CAPT	Senior Officer
O-7		Rear Admiral Lower Half	RDML	Flag Officer
O-8		Rear Admiral	RADM	Flag Officer
O-9		Vice Admiral	VADM	Flag Officer
O-10		Admiral	ADM	Flag Officer
O-11		Fleet Admiral	FADM	Flag Officer