Ranks and insignia of NATO navies' officers
Each officer rank in the navy of a NATO country may be compared with the ranks used by any military service in other NATO countries, under a standardized NATO rank scale. This is useful, for instance, in establishing seniority amongst officers serving alongside each other within multinational command structures.
In many navies, two separate ranks fall within the OF-1 grade. These particular ranks, known by various names in different navies, are commonly given the less formal grades of "OF-1a" (more senior) and "OF-1b" (less senior).
Officers (OF-1 – 10)
Warrant officers (WO-1 – 5)
Warrant officers rank below officers and above enlisted servicemen. In the United States, Chief Warrant Officers are commissioned officers.
| United States Navy
|Chief warrant officer 5||Chief warrant officer 4||Chief warrant officer 3||Chief warrant officer 2||Warrant officer 1
| U.S. Coast Guard
|Chief warrant officer 4||Chief warrant officer 3||Chief warrant officer 2
| United States Marine Corps
|Chief warrant officer 5||Chief warrant officer 4||Chief warrant officer 3||Chief warrant officer 2||Warrant Officer 1|
WO are used for United States warrant officers only. Countries not listed use only regular officer ranks, do not have warrant officers, or warrant officers are considered OR (Other/Enlisted Rank).
- Ranks and insignia of NATO
- Ranks and insignia of NATO armies enlisted
- Ranks and insignia of NATO armies officers
- Ranks and insignia of NATO air forces enlisted
- Ranks and insignia of NATO air forces officers
- Ranks and insignia of NATO navies enlisted
- Student officer insignia designates school grade rather than military seniority.
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