| NATO code | OF-10 | OF-9 | OF-8 | OF-7 | OF-6 | OF-5 | OF-4 | OF-3 | OF-2 | OF-1 | ||||||||||||||
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 Royal Navy[1] |
 
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| Admiral of the Fleet | Admiral | Vice admiral | Rear admiral | Commodore | Captain | Commander | Lieutenant commander | Lieutenant | Sub lieutenant | Midshipman | ||||||||||||||