Admiral 
ADML
			Vice Admiral 
VADM
			Rear Admiral 
RADM
			Commodore 
CDRE
			Captain 
CAPT
			Commander 
CMDR
			Chaplain 
CHAP
			Lieutenant Commander 
LCDR
			Lieutenant 
LEUT
			Sub Lieutenant 
SBLT
			Acting Sub Lieutenant 
ASLT
			Midshipman 
MIDN
			Warrant Officer of the Navy 
WO-N
			Warrant Officer 
WO
			Chief Petty Officer 
CPO
			Petty Officer 
PO
			Leading Seaman 
LS
			Able Seaman 
AB
			Seaman 
SMN
Note: chaplains and maritime spiritual wellbeing officers are commissioned officers without rank. However, for ceremonial and protocol purposes they are, where appropriate, normally grouped with commanders.