Admin

Navy Ranks

Enlisted

E1

 Seaman Recruit

 SR

E2

 Seaman Apprentice

 SA

E3

 Seaman

 SN

E4

 Petty Officer Third Class

 PO3

E5

 Petty Officer Second Class

 PO2

E6

 Petty Officer First Class

 PO1

E7

Chief  Petty Officer

CPO 

E8

Senior Chief  Petty Officer 

 SCPO

E9

Master Chief  Petty Officer

MCPO 

E9

 Master Chief  Petty Officer of The Navy

 MCPON

Warrant Officer

W1

No Longer in use 

 

W2

 Chief Warrant Officer 2

CWO2

W3

Chief Warrant Officer 3

CWO3

W4

Chief Warrant Officer 4

CWO4

W5

Chief Warrant Officer 5

 CWO5

Officer

O1

Ensign 

 ENS

O2

Lieutenant Junior Grade 

 LTJG

O3

Lieutenant 

LT

O4

Lieutenant Commander 

LCDR 

O5

Commander 

CDR 

O6

 Captain

CAPT 

O7

 Rear Admiral Lower Half

RADM L 

O8

Rear Admiral Upper Half 

RADM U

O9

Vice Admiral 

 VADM

O10

 Admiral

ADM