Ranks and insignia of NATO are combined military insignia used by the member countries of the North Atlantic Treaty Organization.

The rank scale is used for specifying posts within NATO.

Ranks

NATO maintains a "standard rank scale" in an attempt to match every member country's military rank to corresponding ranks used by the other members.^[1] The rank categories were established in a 1978 document entitled STANAG 2116 (formally titled NATO Codes for Grades of Military Personnel).

Officer ranks

OF-1 – OF-10 (lowest rank to highest) are used for commissioned officers:^[1]

• OF-6 – OF-10: General officers
• OF-3 – OF-5: Senior officers
• OF-1 – OF-2: Junior officers

Other ranks

OR1–OR9 (lowest rank to highest) are used for other ranks:^[1]

• OR-5 – OR-9: Non-commissioned officers
• OR-1 – OR-4: Enlisted ranks

Comparison to US system

The numbers in the system broadly correspond to the U.S. uniformed services pay grades, with OR-x replacing E-x. The main difference is in the commissioned officer ranks, where the US system recognises two ranks at OF-1 level (O-1 and O-2), meaning that all O-x numbers after O-1 are one point higher on the US scale than they are on the NATO scale (e.g. a major is OF-3 on the NATO scale and O-4 on the US scale).

Ranks and insignia of member armed forces

Army

• Ranks and insignia of NATO member army officers
• Ranks and insignia of NATO member army enlisted

Air Force

• Ranks and insignia of NATO member air force officers
• Ranks and insignia of NATO member air force enlisted

Navy

• Ranks and insignia of NATO member navy officers
• Ranks and insignia of NATO member navy enlisted