Ship prefix
A ship prefix is a combination of letters, usually abbreviations, used in front of a civilian ship or man'o'war (naval ship).Ship prefixes in the United States Navy have consistently been "United States Type", where Type was "Ship", "Sloop", "Bark", and so on. (The types other than "Ship" have fallen out of use.) Hull classification symbols — "BB" for battleships and so on — were haphazard, but in 1907 were standardized by executive order of President Theodore Roosevelt.
The use of ship prefixes is not universal; in particular neither the Third Reich's Kriegsmarine nor the Imperial Japanese Navy seem to have used prefixes, although "DKM" and "HIJMS" respectively are often seen in English works.
Table of Ship Prefixes
| Country | Service | Prefix | Meaning | |
|---|---|---|---|---|
| generic | all | MV | Motor Vessel | |
| generic | all | PS | Paddle Steamer | |
| generic | all | RV | Research Vessel | |
| generic | all | SS | Steam Ship | |
| generic | all | SV | Sailing Vessel | |
| Argentina | Argentine Navy | ARA | Armada de la Republica Argentina | |
| Australia | Royal Australian Navy | HMAS | His/Her Majesty's Australian Ship | |
| Bahamas | Bahamian Defense Force | HMBS | His/Her Majesty's Bahamian Ship | |
| Bangladesh | Bangladesh Navy | BNS | Bangladesh Naval Ship | |
| Barbados | Barbadan Defence Force | HMBS | His/Her Majesty's Barbadian Ship | |
| Belgium | Belgian Navy | BNS | Belgium Naval Ship (NATO prefix) | |
| Canada | Canadian Forces Maritime Command | HMCS | His/Her Majesty's Canadian Ship | |
| Canada | Canadian Coast Guard | CCGS | Canadian Coast Guard Ship | |
| Canada | Canadian Coast Guard | CCGC | Canadian Coast Guard Cutter | |
| Colombia | Armada Nacional | ARC | Armada de la Republica de Colombia | |
| Denmark | Royal Danish Navy | HDMS (Danish: KDM) | His/Her Danish Majesty's Ship (Danish: Kongelige Danske Marine) | |
| Ecuador | Military of Ecuador | BAE | Buque de la Armada de Ecuador | |
| Fiji | Military of Fiji | RFNS | Republic of Fiji Naval Ship | |
| France | French Navy | FS | French Ship (NATO designation) | |
| German Empire | Kaiserliche Marine | SM U-## | Seiner Majestät Unterseeboot | |
| German Empire | Kaiserliche Marine | SMS | Seiner Majestät Schiff | |
| Germany | Bundesmarine | FGS | Federal German Ship (NATO designation) | |
| Greece | Hellenic Navy | HS | Hellenic Ship (NATO designation) | |
| Guyana | ?? | GDFS | Guyanan Defense Forces Ship | |
| India | Indian Navy (pre-Republic) | HMINS | His/Her Majesty's Indian Naval Ship | |
| India | Indian Navy | INS | Indian Naval Ship | |
| Ireland | Irish Naval Service | LE | Long Éireannach — Irish ship | |
| Israel | Israeli Navy | INS | Israeli Naval Ship | |
| Japan | Imperial Japanese Navy | HIJMS | His Imperial Japanese Majesty's Ship | |
| Japan (after WWII) | Japanese Maritime Self Defense Force | JDS | JMSDF Defense Ship | |
| Kenya | ? | KNS | Kenyan Naval Ship | |
| Malaysia | Royal Malaysian Navy | KD | Kapal Di-Raja — Royal Ship | |
| Netherlands | Royal Netherlands Navy | HNLMS (Dutch: Hr.Ms. or Zr.Ms.) | His/Her Majesty's Netherlands Ship (Dutch: Harer Majesteits or Zijner Majesteits) | |
| New Zealand | Royal New Zealand Navy | HMNZS | His/Her Majesty's New Zealand Ship | |
| Nigeria | ? | NNS | Nigerian Naval Ship | |
| Norway | Royal Norwegian Navy | KNM | Kongelige Norske Marine | |
| Norway | Norwegian Coast Guard | KV | Kystvakt | |
| Oman | ? | SNV | Sultanate Naval Vessel | |
| Pakistan | Pakistani Navy | PNS | Pakistani Naval Ship | |
| Papua New Guinea | ? | HMPNGS | Her Majesty's Papua New Guinea Ship | |
| Peru | Peruvian Navy | BAP | Buque Armada Peruana | |
| Philippines | Philippine Navy | BRP | Barka ng Republika ng Pilipinas | |
| Poland | Polish Navy | ORP | Polish Republic Naval Ship
(Polish: Okręt Rzeczypospolitej Polskiej) |
|
| Portugal | Marinha de Guerra Portuguesa | NRP | Portuguese Republic Ship (Navio da República Portuguesa) | |
| Saudi Arabia | Saudi Navy | HMS | His Majesty's Ship — the same as the Royal Navy | |
| Singapore | Republic of Singapore Navy | RSS | Republic of Singapore Ship | |
| South Africa | South African Navy | SAS | South African Ship | |
| Spain | Armada Espanola | SPS | Spanish Naval Ship | |
| Sri Lanka | Sri Lanka Navy | SLNS | Sri Lanka Naval Ship | |
| Sweden | Royal Swedish Navy | HMS | His Majesty's Ship — the same as the Royal Navy | |
| Thailand | Royal Thai Navy | HTMS | His Thai Majesty's Ship | |
| Turkey | Turkish Navy | TCG | Türkiye Cumhuriyeti Gemisi | |
| Trinidad & Tobago | ? | TTS | Trinidad & Tobago Ship | |
| United Kingdom | Ships carrying mail | RMS | Royal Mail Steamer | |
| United Kingdom | Royal Fleet Auxiliary | RFA | Royal Fleet Auxiliary | |
| United Kingdom | Hospital ships | HMHS | His/Her Majesty's Hospital Ship | |
| United Kingdom | Royal Navy | HMS | His/Her Majesty's Ship | |
| United Kingdom | Government research ships | RRS | Royal Research Ship | |
| United States | U.S. Navy | USS | United States Ship | |
| United States | U.S. Navy Military Sealift Command | USNS | United States Naval Ship | |
| United States | U.S. Coast Guard | USCGC | United States Coast Guard Cutter | |
| Uruguay | Uruguay Navy | ROU | Republica del Oriental Uruguay | |
| Venezuela | Venezuelan Navy | ARV | Armada Republica Venezolana |
Occasionally writers will prefix a ship's name with an abbreviation of its nationality in their own language, such as "IJN" for Teikoku Nihon Kaigun, but that usage is deprecated.
In the Royal Netherlands Navy, "HNLMS" is the prefix in English, a translation of the Dutch original "Hr.Ms." or "Zr.Ms.". "Hr.Ms." should preferably not be used English-language documents; nevertheless it is often seen on the World Wide Web. Until the moment a Dutch naval ship officially enters active service in the fleet, the ship's name is used without the prefix.
United States ships that have not been commissioned in the Navy yet don't hold the title of USS, it holds the title of PCU (Pre-commissioned unit) For example, say a shipyard is building a new aircraft carrier:— The Neversail. From the date the keel is laid to the date it is commissioned, it is called the PCU Neversail. Only after it enters active service in the fleet and is commissioned will it be referred to as the USS Neversail.
Note that while a US ship would be "the USS Neversail", its British equivalent would be "HMS Neversail" (without the "the") since "the Her Majesty's Ship" would be grammatically meaningless.
See also the WikiProject Ships.