Navy Officer Ranks
NAVY OFFICER RANKS
O-1 : ENSIGN (ENS)
O-2 : LIEUTENANT JUNIOR GRADE (LTJG)
O-3 : LIEUTENANT (LT)
O-4 : LIEUTENANT COMMANDER (LCDR)
O-5 : COMMANDER (CDR)
O-6 : CAPTAIN (CAPT)
O-7 : REAR ADMIRAL LOWER HALF (RDML)
O-8 : REAR ADMIRAL UPPER HALF (RADM)
O-9 : VICE ADMIRAL (VADM)
O-10 : ADMIRAL (ADM) CHIEF OF NAVAL OPERATIONS AND COMMANDANT OF THE COAST GUARD
WARTIME : FLEET ADMIRAL