| Admiral of the Fleet | |
| Admiral | |
| - | Vice-Admiral |
| - | Rear-Admiral |
| Commodore | |
| Captain | |
| Commander | |
| - | Lieutenant-Commander |
| Lieutenant | |
| - | Sub-Lieutenant |
| - | Acting Sub-Lieutenant |
| Chief Petty Officer | |
| 1- | Petty Officer, class 1 |
| 2- | Petty Officer, class 1 |
| 3- | Petty Officer, class III |
| Leading Seaman | |
| 1- | Able Seaman |
| 2- | Ordinary Seaman |
| Officer's Orderly | |
| Officer's Servant |
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| Admiral of the Fleet | |
| Admiral | |
| - | Vice-Admiral |
| - | Rear-Admiral |
| 1- | Commodore |
| 2- | Captain |
| 3- | Commander |
| - | Lieutenant-Commander |
| Senior Lieutenant | |
| Lieutenant | |
| Junior Lieutenant | |
| Warrant Officer | |
| Ensign | |
| Chief Ship Petty Officer | |
| Chief Petty Officer | |
| 1- | Petty Officer, 1st class |
| 2- | Petty Officer, 2nd class |
| Leading Sailor | |
| () | Sailor |
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| Ministry of Defense | |
| The Head Department of Navigation and Oceanography | |
| Navy Department (ND) | |
| . - | Admiralty |
| Naval Command | |
| - | United Kingdom Navy (UKN) |
| - | United States Navy (USN) |
| - | Naval Force(s) |
| - | Naval Base |
| - | Naval Air Arm |
| - | Naval Air Force |
| - | Naval Intelligence |
| Naval Infantry | |
| United States Marine Corps (USMC) | |
| United States Coast Guard (USCG) | |
| (, ) | Task Force (group, unit) |
| Naval Force, Far East | |
| Naval Self-Defense Force | |
| Naval Staff | |
| , | Allied Command, Atlantic |
| Fleet | |
| (), | Squadron |
| () | Division |
| Brigade | |
| Regiment | |
| Battalion | |
| Squadron | |
| Platoon | |
| Squad | |
| Grouping | |
| Escort | |
| Convoy | |
| Battle outposts | |
| Protection on the move | |
| Convoy Screen |
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| Watch officer | |
| Officer on the deck | |
| () | Commander (commanding officer) |
| Navigating officer | |
| Gunnery officer | |
| Engineer commander, Chief engineer, eng. officer | |
| Captain | |
| Division commander | |
| Naval force commander | |
| Officer in tactical command | |
| Convoy commander | |
| Convoy screen commander | |
| Flag captain | |
| Squadron commander | |
| Fleet commander | |
| - | Naval district commander |
| Commander-in-Chief, Atlantic Fleet | |
| Commander, Allied Naval Forces | |
| Commander-in-Chief, Pacific Fleet | |
| Commander-in-Chief, United States Navy |
