US DoD
pay grade
Special grade[a] O-10 O-9 O-8 O-7 O-6 O-5 O-4 O-3 O-2 O-1
NATO code OF-10 OF-9 OF-8 OF-7 OF-6 OF-5 OF-4 OF-3 OF-2 OF-1
Insignia
Uniform insignia
Title Fleet admiral Admiral Vice admiral Rear admiral Rear admiral (lower half) Captain Commander Lieutenant commander Lieutenant Lieutenant (junior grade) Ensign
Abbreviation FADM ADM VADM RADM RDML CAPT CDR LCDR LT LTJG ENS