Navies of Europe
| Austo-Hungarian Empire | Kaiserliche Marine | SMS | Seiner Majestät Schiff (English: His Majesty's Ship) |
| Belgium | Belgian Navy | BNS | Belgium Naval Ship (NATO prefix) |
| Denmark | Royal Danish Navy | HDMS | (Danish: KDM) His/Her Danish Majesty's Ship (Danish: Kongelige Danske Marine) |
| Estonia | Estonian Navy | ENS (Estonian: EML) | Estonian Naval Ship (NATO designation) |
| France | French Navy | FS | French Ship (NATO designation); France does not use prefixes internally |
| German Empire | Kaiserliche Marine | SMS | Seiner Majestät Schiff (English: His Majesty's Ship) |
| Nazi Germany | Kriegsmarine | KMS | "Kriegsmarine Schiffe" (no official prefix; a few authors use "DKM" for "Deutsche Kriegsmarine" while most use "KMS") |
| West Germany | Bundesmarine | FGS | Federal German Ship (NATO designation); West Germany did not use prefixes internally |
| Germany | Deutsche Marine | FGS | Federal German Ship (NATO designation); Germany does not use prefixes internally |
| Kingdom of Greece | Royal Hellenic Navy | VP | Vassilikón Ploíon, "Royal Ship"; RHS (Royal Hellenic Ship) or HHMS (His Hellenic Majesty's Ship) in use by English-language authors and contemporary foreign navies. |
| Greece | Hellenic Navy | HS | Hellenic Ship (NATO designation); Greece does not use prefixes internally |
| Italy, Kingdom of | Regia Marina | RN | Regia Nave -- Royal Ship, sometimes unofficially "RM", standing for "Regia Marina" |
| Italy | Marina Militare | ITS | Italian Ship (NATO designation); Italy no longer uses prefixes |
| Latvia | Latvian Navy | LVS | Latvian Ship (NATO designation) |
| Lithuania | Lithuanian Navy | LNS | Lithuanian Ship (NATO designation) |
| Netherlands | Royal Netherlands Navy | HNLMS Hr.Ms. or Zr.Ms. |
English: His/Her Netherlands Majesty's Ship
Dutch: Harer Majesteits or Zijner Majesteits [His/Her Netherlands Majesty's ship name] - "Hr.Ms. Potvis" translates as "Her Majesty's Potvis" and not "Her Majesty's Ship Potvis" |
| Norway | Royal Norwegian Navy | HNoMS | (Norwegian: KNM) His Norwegian Majesty's Ship (Norwegian: Kongelige Norske Marine) |
| Poland | Polish Navy | ORP | Ship of the Republic of Poland (Polish: Okret Rzeczypospolitej Polskiej) |
| Portugal | Marinha de Guerra Portuguesa | NRP | Portuguese Republic Ship (Navio da República Portuguesa) |
| Romania | Romanian Navy | NMS | Nava Majestatii Sale (His/Her majesty's Ship) - used before 1945 by the Royal Romanian Navy |
| Spain | Armada Española | SPS | Spanish Naval Ship (Spain does not use prefixes internally) |
| Turkey | Turkish Navy | TCG | Ship of the Turkish Republic (Turkish: Türkiye Cumhuriyeti Gemisi) |
| United Kingdom | Royal Fleet Auxiliary | RFA | Royal Fleet Auxiliary |
| Royal Navy | HMS | His/Her Majesty's Ship |
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