Cadet officer ranks
Cadet Officer Ranks
Collar Insignia
Rank
Ensign
Lieutenant (Junior Grade)
Lieutenant
Lieutenant Commander
Commander
Abbreviation
C/Ens
C/Lt (J.G.)
C/Lt
C/Lt. Cdr
C/Cdr.
Rate
O-1
O-2
O-3
O-4
O-5
Cadet rank insignia are based on those used in the United States Naval Academy and in NROTC units.