# List of ship classes of World War II

The List of ship classes of World War II is an alphabetical list of all ship classes that served in World War II. Only actual classes are included as opposed to unique ships (which are still included if they were the only one of a class to be built, for example, HMS Hood was the first of the four planned Admiral-class battlecruisers, but the other three were cancelled).
The list of ships of World War II contains major military vessels of the war, arranged alphabetically and by type. The list includes armed vessels that served during the war and in the immediate aftermath, inclusive of localized ongoing combat operations, garrison surrenders, post-surrender occupation, colony re-occupation, troop and prisoner repatriation, to the end of 1945. For smaller vessels, see also List of World War II ships of less than 1000 tons. Some uncompleted Axis ships are included, out of historic interest. Ships are designated to the country under which they operated for the longest period of the World War II, regardless of where they were built or previous service history.

## Ship classes of World War II

List of ship classes of World War II :
| Class | Type | Country | Launch Year(s) | Displacement (tons) | Number built (wartime/total) |
| 250t | Torpedo boat/gunboat | Romanian Naval Forces | 1914 | 266 | 3 |
| Type 1934 | Destroyer | Kriegsmarine | 1935 | 3,156 | 4 |
| Type 1934A | Destroyer | Kriegsmarine | 1935–1937 | 3,110 | 12 |
| Type 1936 | Destroyer | Kriegsmarine | 1937–1938 | 3,415 | 6 |
| Type 1936A Mob | Destroyer | Kriegsmarine | 1941–1942 | 3,415 | 7 |
| Type 1936A Narvik | Destroyer | Kriegsmarine | 1939–1940 | 3,605 | 8 |
| Type 1936B | Destroyer | Kriegsmarine | 1942–1944 | 3,415 | 3 |
| A | Destroyer | Royal Navy | 1929–1930 | 1,350 | 11 |
| A | Submarine | Royal Norwegian Navy | 1914 | 268 | 3 |
| Abdiel (a.k.a. Manxman) | Minelayer | Royal Navy | 1940–1944 | 2,650 | 6 |
| Acciaio | Submarine | Regia Marina | 1941 | 697 | 13 |
| Acre | Destroyer | Brazilian Navy | 1943–1946 | 1,340 | 6 |
| Admiral Hipper | Heavy cruiser | Kriegsmarine | 1937–1939 | 14,000 | 3 |
| Admiralty (a.k.a. Scott) | Destroyer flotilla leader | Royal Navy | 1918–1919 | 1,610–1,810 | 6 / 8 |
| Adua | Submarine | Regia Marina | 1936 | 697 | 17 |
| Ægir | Submarine | Royal Danish Navy | 1915 | 237 | 5 |
| Aetos | Destroyer | Hellenic Navy | 1911 | 1,050 | 4 |
| Agano | Light cruiser | Imperial Japanese Navy | 1941–1944 | 6,650 | 4 |
| Ahven | Minesweeper | Finnish Navy | 1937 | 17 | 6 |
| Aigle | Destroyer | French Navy | 1930–1931 | 2,441 | 6 |
| Akagi Maru | Armed merchant cruiser | Imperial Japanese Navy | 1941 | 7,389 | 3 |
| Akatsuki | Destroyer | Imperial Japanese Navy | 1931–1932 | 1,680 | 4 |
| Akizuki | Destroyer | Imperial Japanese Navy | 1941–1944 | 2,700 | 12 |
| Alaska | Large cruiser | United States Navy | 1943–1950 | 34,253 | 2 |
| Algerien | Destroyer | French Navy | 1943–1944 | 1,300 | 6 |
| Algerine | Minesweeper | Royal Navy | 1942–1944 | 864–1,047 | 109 |
| Allen M. Sumner | Destroyer | United States Navy | 1943–1944 | 2,200 | 58 |
| Amiral Murgescu | Minelayer | Romanian Naval Forces | 1939–1944 | 1,068 | 2 |
| Amphion (a.k.a. A or Acheron) | Submarine | Royal Navy | 1944–1945 | 1,620 | 2 / 18 |
| Andrea Doria | Battleship | Regia Marina | 1913 | 29,345 (WW2 after modification) | 2 |
| Andromeda | Attack cargo ship | United States Navy | 1943–1945 | 6,761 | 30 |
| Aoba | Heavy cruiser | Imperial Japanese Navy | 1926 | 7100 | 2 |
| Aquila (a.k.a. Vifor) | Scout cruiser | Romanian Naval Forces | 1917–1918 | 1,594 | 2 |
| Archimede | Submarine | Regia Marina | 1936 | 985 | 2 |
| Arethusa | Light cruiser | Royal Navy | 1934–1936 | 5,250 | 4 |
| Argo | Submarine | Regia Marina | 1936 | 810 | 2 |
| Argonauta | Submarine | Regia Marina | 1932 | 667 | 10 |
| Asama | Cruiser | Imperial Japanese Navy | 1898 | 9,700 | 2 |
| Asashio | Destroyer | Imperial Japanese Navy | 1936–1937 | 1,961 | 10 |
| Atlanta | Light cruiser | United States Navy | 1941–1946 | 6,000 | 8 |
| Avenger | Escort carrier | Royal Navy | 1940–1941 | 8,300 | 3 |
| B | Destroyer | Brazilian Navy | 1930 | 1,360 | 9 |
| B | Destroyer | Royal Navy | 1943 | 1,253 | 9 |
| B | Submarine | Royal Norwegian Navy | 1923–1929 | 365 | 6 |
| Bagley | Destroyer | United States Navy | 1936–1937 | 1,646 | 8 |
| Bahia | Scout cruiser | Brazilian Navy | 1910 | 3,100 | 2 |
| Balao | Submarine | United States Navy | 1943–1946 | 2,429 | 120 |
| Balilla | Submarine | Regia Marina | 1928 | 1,484 | 4 |
| Baltimore | Heavy cruiser | United States Navy | 1942–1951 | 14,472 | 14 |
| Bandiera | Submarine | Regia Marina | 1930 | 937 | 4 |
| Bangkok Maru | Armed merchant cruiser | Imperial Japanese Navy | 1937 | 5,351 | 2 |
| Bangor | Minesweeper | Royal Navy | 1940–1944 | 600 | 128 |
| Barnegat | Seaplane tender | United States Navy | 1941–1943 | 2,600 | 35 |
| Bathurst | Corvette | Royal Australian Navy | 1940–1942 | 1,025 | 60 |
| Battle | Destroyer | Royal Navy | 1943–1945 | 2,315–2,574 | 26 |
| Benham | Destroyer | United States Navy | 1938–1939 | 1,637 | 10 |
| Benson | Destroyer | United States Navy | 1939–1941 | 1,620 | 30 |
| Beograd | Destroyer | Royal Yugoslav Navy | 1939 | 1,210 | 3 |
| Bird | Minesweeper | Royal Navy | 1938–1940 | 607 | 45 |
| Bismarck | Battleship | Kriegsmarine | 1940 | 50,300 | 2 |
| Black Swan | Sloop | Royal Navy | 1939–1945 | 1,250 | 37 |
| Bogue | Escort carrier | United States Navy | 1941–1944 | 16,890 | 11 (+34 to UK as Attacker and Ruler) |
| Bogue (a.k.a. Attacker) | Escort carrier | Royal Navy | 1941–1943 | 16,890 | 9 |
| Bogue (a.k.a. Ruler) | Escort carrier | Royal Navy | 1942–1944 | 16,890 | 25 |
| Bourrasque | Destroyer | French Navy | 1924–1925 | 1,298 | 12 |
| Bragadin | Submarine | Regia Marina | 1931 | 982 | 2 |
| Bretagne | Battleship | French Navy | 1913 | 22,200 | 3 |
| Brin | Submarine | Regia Marina | 1938–1939 | 1,016 | 5 |
| Bristol | Destroyer | United States Navy | 1941–1943 | 1,839 | 64 |
| Brooklyn | Light cruiser | United States Navy | 1936–1938 | 9,767 | 9 |
| Buckley | Destroyer escort | United States Navy | 1943–1944 | 1,740 | 102 (+46 to UK as Captain) |
| Buckley (Charles Lawrence) | High speed transport | United States Navy | 1943–1944 | 1,740 | 6 (+37 converted from commissioned Buckleys) |
| C | Submarine | Royal Danish Navy | | 369 | 3 |
| C | Destroyer | Royal Navy | 1931–1932 | 1,397 | 5 |
| C (1943) | Destroyer | Royal Navy | 1943–1946 | 1,740 | 32 |
| C (Caledon) | Light cruiser | Royal Navy | 1916–1917 | 4,180 | 3 / 4 |
| C (Carlisle) | Light cruiser | Royal Navy | 1916–1918 | 4,200 | 5 |
| C (Caroline) | Light cruiser | Royal Navy | 1914–1915 | 4,180 | 1 / 6 |
| C (Ceres) | Light cruiser | Royal Navy | 1917–1918 | 4,290 | 5 |
| Cachalot | Submarine | United States Navy | 1933 | 1,100 | 2 |
| Calvi | Submarine | Regia Marina | 1935 | 1,550 | 3 |
| Cannon | Destroyer escort | United States Navy | 1943–1944 | 1,525 | 72 |
| Capitani Romani | Light cruiser | Regia Marina | 1940–1942 | 3,686 | 3 |
| Captain | Frigate | Royal Navy | 1942–1943 | 1,500 | 78 |
| Casablanca | Escort carrier | United States Navy | 1943–1945 | 7,800 | 50 |
| Castle | Corvette | Royal Navy | 1943–1944 | 1,060 | 44 |
| Chacal (a.k.a. Jaguar) | Destroyer | French Navy | 1924 | 2,126 | 6 |
| Chang Ning | Patrol boat | Republic of China Navy | | 400 | 10 |
| Charger | Escort carrier | United States Navy | 1940–1941 | 8,000 | 1 (+3 to UK as Avenger) |
| Chiwawa | Fleet oiler | United States Navy | 1942 | 21,077 | 5 |
| Chitose | Light aircraft carrier | Imperial Japanese Navy | 1936-1937 | 11,190 | 2 |
| Chidori | Torpedo boat | Imperial Japanese Navy | 1933 | 535 | 4 |
| Cimarron | Fleet oiler | United States Navy | 1939–1945 | 24,830 | 35 |
| Clemson | Destroyer | United States Navy | 1918–1921 | 1,190 | 156 |
| Cleveland | Light cruiser | United States Navy | 1941–1946 | 11,744 | 27 |
| Colony | Frigate | Royal Navy | 1943–1945 | 1,400 | 21 |
| Colorado | Battleship | United States Navy | 1920–1921 | 32,600 | 3 |
| Colossus | Light aircraft carrier | Royal Navy | 1943–1944 | 13,200 | 10 |
| Commencement Bay | Escort carrier | United States Navy | 1944–1945 | 10,900 | 11 / 19 |
| Condottieri (Alberto di Giussano) | Light cruiser | Regia Marina | 1930 | 6,470 | 4 |
| Condottieri (Cadorna) | Light cruiser | Regia Marina | 1931–1932 | 5,239 | 2 |
| Condottieri (Montecuccoli) | Light cruiser | Regia Marina | 1934 | 7,404 | 2 |
| Condottieri (Duca d'Aosta) | Light cruiser | Regia Marina | 1934–1935 | 8,400 | 2 |
| Condottieri (Duca degli Abruzzi) | Light cruiser | Regia Marina | 1936 | 11,350 | 2 |
| Conte di Cavour | Battleship | Regia Marina | 1911 | 23,600 | 2 |
| County (Kent) | Heavy cruiser | Royal Navy | 1926–1927 | 9,850–10,900 | 7 |
| County (London) | Heavy cruiser | Royal Navy | 1927–1928 | 9,850 | 4 |
| County (Norfolk) | Heavy cruiser | Royal Navy | 1928–1929 | 9,925–9,975 | 2 |
| Courbet | Battleship | French Navy | 1911–1912 | 23,200 | 2 |
| Crown Colony (Ceylon) | Light cruiser | Royal Navy | 1941–1942 | 8,712 | 3 |
| Crown Colony (Fiji) | Light cruiser | Royal Navy | 1939–1941 | 8,530 | 8 |
| Currituck | Seaplane tender | United States Navy | 1943–1944 | 14,000 | 4 |
| Curtatone | Torpedo boat | Regia Marina | 1923–1924 | 967 | 4 |
| Curtiss | Seaplane tender | United States Navy | 1940 | 13,000 | 2 |
| D | Submarine | Royal Danish Navy | | 369 | 2 |
| D | Destroyer | Royal Navy | 1931–1932 | 1,397 | 9 |
| Danae | Light cruiser | Royal Navy | 1917–1919 | 4,850 | 8 |
| Dardo | Destroyer | Regia Marina | 1930 | 2,116 | 19 |
| Deutschland | Pre-dreadnought | Kriegsmarine | 1906 | 12,100 | 2 |
| Deutschland | Heavy cruiser | Kriegsmarine | 1931–1934 | 12,100 | 3 |
| Dido | Light cruiser | Royal Navy | 1939–1941 | 5,600 | 11 |
| Dido (Bellona) | Light cruiser | Royal Navy | 1942 | 5,950 | 5 |
| Dixie | Destroyer tender | United States Navy | 1939–1943 | 9,450 | 5 |
| Dragen | Destroyer | Royal Danish Navy | 1929–1934 | 290 | 9 |
| Draug | Destroyer | Royal Norwegian Navy | 1910–1913 (approx) | 578 | 3 |
| Drazki | Torpedo boat | Bulgarian Navy | 1907–1908 | 97 | 6 |
| Duguay-Trouin | Light cruiser | French Navy | 1923–1924 | 7,250 | 3 |
| Dunkerque | Battleship | French Navy | 1935–1936 | 35,500 | 2 |
| Duquesne | Heavy cruiser | French Navy | 1925–1926 | 12,435 | 2 |
| E | Destroyer | Royal Navy | 1934 | 1,428 | 18 |
| Edsall | Destroyer escort | United States Navy | 1943–1944 | 1,253 | 85 |
| Eidsvold | Coastal battleship | Royal Norwegian Navy | 1899 | 4,233 | 2 |
| Elbing | Torpedo boat | Kriegsmarine | 1941–1944 | 1,295 | 15 |
| Emerald | Light cruiser | Royal Navy | 1919–1920 | 7,580 | 2 |
| Erebus | Monitor | Royal Navy | 1916 | 7,200 | 2 |
| Essex | Aircraft carrier | United States Navy | 1942–1945 | 31,300 | 24 |
| Evarts | Destroyer escort | United States Navy | 1942–1944 | 1,360 | 65 (+32 to UK as Captain) |
| F | Destroyer | Royal Navy | 1934 | 1,428 | 18 |
| Fargo | Light cruiser | United States Navy | 1945–1946 | 11,744 | 2 |
| Farragut | Destroyer | United States Navy | 1934–1935 | 1,395 | 8 |
| Fletcher | Destroyer | United States Navy | 1941–1944 | 2,325 | 175 |
| Florida | Battleship | United States Navy | 1910–1911 | 21,825 | 2 |
| Flower | Corvette | Royal Navy  Royal Canadian Navy | 1939–1944 | 940 | 225 |
| Flower (Modified) | Corvette | Royal Navy  Royal Canadian Navy | 1939–1944 | 1,015 | 69 |
| Foca | Submarine | Regia Marina | 1937 | 1,333 | 3 |
| Folgore | Destroyer | Regia Marina | 1931 | 1,830 | 4 |
| Fubuki | Destroyer | Imperial Japanese Navy | 1927–1931 | 1,750 | 20 |
| Furutaka | Heavy cruiser | Imperial Japanese Navy | 1925 | 7,100 | 2 |
| Fusō | Battleship | Imperial Japanese Navy | 1914–1915 | 35,300 | 2 |
| G | Destroyer | Royal Navy | 1935 | 1,340–1,350 | 9 |
| Gabbiano | Corvette | Regia Marina | 1942 | 672 | 40 |
| Gangut | Battleship | Soviet Navy | 1911 | 25,850 | 4 |
| Gato | Submarine | United States Navy | 1941–1943 | 1,825 | 77 |
| Gearing | Destroyer | United States Navy | 1945–1951 | 2,616 | 98 |
| Generali | Torpedo boat | Regia Marina | 1921 | 832 | 6 |
| Gerard Callenburgh | Destroyer | Royal Netherlands Navy | 1939–1940 | 1,604 | 4 |
| Glauco | Submarine | Regia Marina | 1935 | 1,035 | 2 |
| Gleaves | Destroyer | United States Navy | 1939–1941 | 1,630 | 66 |
| Glorious | Aircraft carrier | Royal Navy | 1916 | 26,500 | 2 |
| Gridley | Destroyer | United States Navy | 1936–1938 | 1,590 | 4 |
| Grom | Destroyer | Polish Navy | 1936 | 2,144 | 2 |
| Guépard | Destroyer | French Navy | 1928–1930 | 2,436 | 6 |
| H | Destroyer | Royal Navy | 1936–1939 | 1,340–1,350 | 15 |
| Ha-101 | Transport submarine | Imperial Japanese Navy | 1944–1945 | 501 | 10 |
| Ha-201 | Submarine | Imperial Japanese Navy | 1945 | 440 | 10 |
| Halcyon | Minesweeper | Royal Navy | 1938–1939 | 1,330 | 21 |
| Hamul | Destroyer tender | United States Navy | 1940 | 8,560–18,900 | 2 |
| Hatsuharu | Destroyer | Imperial Japanese Navy | 1932–1934 | 1,490 | 6 |
| Havmanden | Submarine | Royal Danish Navy | 1938–1940 | 407 | 4 |
| Hawkins | Heavy cruiser | Royal Navy | 1917–1921 | 9,860 | 5 |
| Hiyō | Aircraft carrier | Imperial Japanese Navy | 1941 | 24,140 | 2 |
| Hunt | Destroyer escort | Royal Navy | 1939–1943 | 1,000–1,170 | 86 |
| Hōkoku Maru | Ocean liner | Imperial Japanese Navy | 1940–1942 | 17,000 | 3 |
| I | Destroyer | Royal Navy | 1936–1941 | 1,390 | 11 |
| I-201 | Submarine | Imperial Japanese Navy | 1945 | 1,290-1503 | 3 |
| I-351-class submarine | Submarine | Imperial Japanese Navy | 1943-1945 | 3,512-4,390 | 1-2 |
| I-400-class submarine | Submarine aircraft carrier | Imperial Japanese Navy | 1944 | 6,560 | 3 |
| Illustrious | Aircraft carrier | Royal Navy | 1939–1940 | 23,000 | 6 |
| Implacable | Aircraft carrier | Royal Navy | 1939 | 23,000 | 2 |
| Independence | Aircraft carrier | United States Navy | 1942–1943 | 11,000 | 9 |
| Iowa | Battleship | United States Navy | 1942–1950 | 60,000 | 4 |
| Ise | Battleship | Imperial Japanese Navy | 1916–1917 | 31,762 | 2 |
| Isles | Naval trawler | Royal Navy | 1940–1944 | 554 | 145 |
| Isles (Dance) | Naval trawler | Royal Navy | 1940 | 554 | 20 |
| Isles (Shakespearian) | Naval trawler | Royal Navy | 1940 | 554 | 12 |
| Isles (Tree) | Naval trawler | Royal Navy | 1939–1940 | 545 | 20 |
| Izumo | Armoured cruiser | Imperial Japanese Navy | 1898 | 9,750 | 2 |
| J | Destroyer | Royal Navy | 1938–1939 | 1,690 | 9 |
| Java | Light cruiser | Royal Netherlands Navy | 1920–1921 | 6,670 | 2 |
| John C. Butler | Destroyer escort | United States Navy | 1943–1946 | 1,350 | 83 |
| K | Destroyer | Royal Navy | 1938–1939 | 1,690 | 8 |
| Kagerō | Destroyer | Imperial Japanese Navy | 1938–1941 | 2,033 | 19 |
| Kamikawa Maru | Seaplane tender | Imperial Japanese Navy | 1936–1940 | 6,863 | 4 |
| Kamikaze | Destroyer | Imperial Japanese Navy | 1922–1925 | 1,400 | 9 |
| Kashii Maru | Seaplane tender | Imperial Japanese Navy | 1934–1941 | 8,600 | 3 |
| Katori | Light cruiser | Imperial Japanese Navy | 1939–1940 | 6,280 | 3 |
| Kennebec | Fleet oiler | United States Navy | 1941–1942 | 21,077–21,750 | 11 |
| Kenneth Whiting | Seaplane tender | United States Navy | 1943–1944 | 12,600 | 4 |
| King George V | Battleship | Royal Navy | 1939–1940 | 42,923 | 5 |
| Kirov | Heavy cruiser | Soviet Navy | 1938–1940 | 7,890 | 2 |
| Kirov (Project 26-bis) | Heavy cruiser | Soviet Navy | 1938–1944 | 8,177 | 2 |
| Kirov (Project 26-bis2) | Heavy cruiser | Soviet Navy | 1938–1944 | 8,400 | 2 |
| Kountouriotis | Destroyer | Hellenic Navy | 1931–1932 | 1,389 | 4 |
| Kongō | Battleship | Imperial Japanese Navy | 1912–1913 | 31,720 | 4 |
| Kongō Maru | Armed merchant cruiser | Imperial Japanese Navy | 1934 | 8,613 | 2 |
| Königsberg | Light cruiser | Kriegsmarine | 1927–1928 | 6,650 | 3 |
| Kuha | Minesweeper | Finnish Navy | 1941–1946 | 18 | 6 |
| Kuma | Light cruiser | Imperial Japanese Navy | 1919–1920 | 5,019 | 5 |
| Kyzikos | Torpedo boat | Hellenic Navy | 1914–1915 | 270 | 3 |
| L | Destroyer | Royal Navy | 1939–1941 | 1,920 | 8 |
| L | Submarine | Royal Navy | 1916–1919 | 1,091–1,168 | 27 |
| L'Adroit | Destroyer | French Navy | 1926–1929 | 1,356 | 14 |
| La Galissonnière | Light cruiser | French Navy | 1933–1936 | 7,600 | 6 |
| La Masa | Torpedo boat | Regia Marina | 1917 | 840 | 8 |
| Le Fantasque | Destroyer (or light cruiser) | French Navy | 1933–1934 | 2,570 | 6 |
| Le Hardi | Destroyer | French Navy | 1938–1947 | 1,772 | 11 |
| Leander | Light cruiser | Royal Navy | 1931–1934 | 7,270 | 5 |
| Leander (Amphion) | Light cruiser | Royal Navy | 1931–1934 | 6,830 | 3 |
| Leipzig | Light cruiser | Kriegsmarine | 1929–1934 | 6,515–6,980 | 2 |
| Leone | Destroyer | Regia Marina | 1924 | 2,003 | 3 |
| Lexington | Aircraft carrier | United States Navy | 1925 | 37,000 | 2 |
| Littorio | Battleship | Regia Marina | 1937–1940 | 45,236 | 3 |
| Liuzzi | Submarine | Regia Marina | 1939–1940 | 1,166 | 2 |
| Long Island | Escort carrier | United States Navy | 1939 | 13,500 | 1 (+1 to UK as HMS Archer) |
| M | Destroyer | Royal Navy | 1941–1942 | 1,920 | 8 |
| MAC | Merchant aircraft carrier | Royal Navy (para-military) | 1942–1945 | 7,950–9,133 | 10 |
| MAC (Rapana) | Merchant aircraft carrier | Royal Navy (para-military) | 1942–1945 | 8,010 | 9 |
| Mackerel | Submarine | United States Navy | 1940–1941 | 825 | 2 |
| Maestrale | Destroyer | Regia Marina | 1934 | 2,025 | 4 |
| Mahan | Destroyer | United States Navy | 1935–1936 | 1,488 | 18 |
| Mameli | Submarine | Regia Marina | 1929 | 880 | 4 |
| Marcello | Submarine | Regia Marina | 1939 | 1,060 | 11 |
| Marcilio Dias (also M) | Destroyer | Brazilian Navy | 1940–1941 | 1,500 | 3 |
| Marconi | Submarine | Regia Marina | 1940 | 1,195 | 6 |
| Matsu | Destroyer escort | Imperial Japanese Navy | 1944 | 1,262 | 18 |
| Micca | Submarine | Regia Marina | 1935 | 1,570 | 1 |
| Minekaze | Destroyer | Imperial Japanese Navy | 1919–1922 | 1,345 | 13 |
| Minotaur | Light cruiser | Royal Navy | 1943–1945 | 8,800 | 6 |
| Mirabello | Destroyer | Regia Marina | 1915–1916 | 1,811 | 2 |
| Mississippi | Battleship | Hellenic Navy | 1905 | 13,000 | 2 |
| Mogador | Destroyer (or light cruiser) | French Navy | 1936–1937 | 2,884 | 2 |
| Mogami | Heavy cruiser | Imperial Japanese Navy | 1934–1936 | 8,500 | 4 |
| Momi | Destroyer | Imperial Japanese Navy | 1918–1923 | 770 | 21 |
| Momo | Destroyer | Imperial Japanese Navy | 1917–1918 | 835 | 4 |
| Mutsuki | Destroyer | Imperial Japanese Navy | 1925–1927 | 1,315 | 12 |
| Myōkō | Heavy cruiser | Imperial Japanese Navy | 1927–1928 | 10,000 | 4 |
| N | Destroyer | Royal Navy | 1940–1941 | 1,690 | 8 |
| Nagara | Light cruiser | Imperial Japanese Navy | 1920–1921 | 5,088 | 6 |
| Nagato | Battleship | Imperial Japanese Navy | 1919–1920 | 39,130 | 2 |
| Najaden | Torpedo boat | Royal Danish Navy | 1943 | 782 | 2 |
| Narwhal | Submarine | United States Navy | 1928–1930 | 3,900 | 2 |
| Navigatori | Destroyer | Regia Marina | 1929–1931 | 2,380 | 12 |
| Nelson | Battleship | Royal Navy | 1925 | 41,250 | 2 |
| Nevada | Battleship | United States Navy | 1914 | 29,000 | 2 |
| New Mexico | Battleship | United States Navy | 1917 | 33,000 | 3 |
| New Orleans (ex-Astoria) | Heavy cruiser | United States Navy | 1933–1936 | 10,136 | 7 |
| New York | Battleship | United States Navy | 1912 | 27,000 | 2 |
| North Carolina | Battleship | United States Navy | 1940 | 47,400 | 2 |
| Northampton | Heavy cruiser | United States Navy | 1929–1930 | 9,006 | 6 |
| O | Destroyer | Royal Navy | 1939–1942 | 1,610 | 8 |
| Odin | Submarine | Royal Navy | 1926–1929 | 1,922–2,060 | 12 |
| Odin | Destroyer | Royal Norwegian Navy | 1939 | 632 | 3 |
| Omaha | Light cruiser | United States Navy | 1920–1924 | 7,050 | 10 |
| Oruç Reis | Submarine | Royal Navy | 1940 | 856 | 4 |
| Orzeł | Submarine | Polish Navy | 1938 | 1,100 | 2 |
| Ōtori | Torpedo boat | Imperial Japanese Navy | 1935–1937 | 840 | 8 |
| P | Destroyer | Royal Navy | 1939–1942 | 1,610 | 8 |
| Palestro | Torpedo boat | Regia Marina | 1921 | 1,033 | 4 |
| Parthian | Submarine | Royal Navy | 1929 | 2,070 | 6 |
| Pegaso | Torpedo boat | Regia Marina | 1938 | 840 | 4 |
| Pennsylvania | Battleship | United States Navy | 1915 | 33,000 | 2 |
| Pensacola | Heavy cruiser | United States Navy | 1929 | 9,100 | 2 |
| Perla | Submarine | Regia Marina | 1936 | 697 | 10 |
| Pichincha | Coast guard vessel | Colombian National Navy | | 120 | 3 |
| Pilo | Torpedo boat | Regia Marina | 1915 | 770 | 7 |
| Pisani | Submarine | Regia Marina | 1930 | 880 | 4 |
| Poeti | Destroyer | Regia Marina | 1937 | 2,320 | 4 |
| Porpoise | Submarine | United States Navy | 1935–1937 | 1,310 | 10 |
| Porter | Destroyer | United States Navy | 1936–1937 | 1,834 | 8 |
| Portland | Heavy cruiser | United States Navy | 1931–1932 | 10,258 | 2 |
| Proussa | Torpedo boat | Hellenic Navy | 1915–1916 | 266 | 2 |
| Q | Destroyer | Royal Navy | 1941–1942 | 1,705 | 8 |
| Queen Elizabeth | Battleship | Royal Navy | 1913–1915 | 33,790 (as built) | 5 |
| R | Destroyer | Royal Navy | 1941–1942 | 1,705 | 8 |
| R | Submarine | United States Navy | 1918–1919 | 570 | 27 |
| R (Admiralty) | Destroyer | Royal Navy | 1916–1917 | 940–1,052 | 1 / 62 |
| Rainbow | Submarine | Royal Navy | 1930 | 2,000 | 6 |
| Regele Ferdinand | Destroyer | Romanian Naval Forces | 1928–1929 | 1,400 | 2 |
| Renown | Battlecruiser | Royal Navy | 1916 | 32,000 | 2 |
| Revenge | Battleship | Royal Navy | 1914–1916 | 28,000 | 5 |
| Richelieu | Battleship | French Navy | 1939–1940 | 43,992 | 2 |
| River (RAN Group I) | Frigate | Royal Australian Navy | 1943–1945 | 1,420 | 8 |
| River (RAN Group II) | Frigate | Royal Australian Navy | 1944–1945 | 1,537 | 4 |
| River (RCN Group) | Frigate | Royal Canadian Navy | 1941–1944 | 1,445 | 70 |
| River (RN Group I) | Frigate | Royal Navy | 1941–1944 | 1,370 | 23 |
| River (RN Group II) | Frigate | Royal Navy | 1941–1944 | 1,400 | 44 |
| Ro-100 | Submarine | Imperial Japanese Navy | 1941–1943 | 782 | 18 |
| Robert H. Smith | Destroyer minelayer | United States Navy | 1944 | 2,200 | 12 |
| Rudderow | Destroyer escort | United States Navy | 1943-1944 | 1,430 | 22 (-1 conversion) |
| Rudderow (Crosley) | High speed transport | United States Navy | 1943-1944 | 1,400 | 50 (+1 conversion) |
| S | Submarine | Royal Navy | 1931–1945 | 950 | 63 |
| S | Submarine | United States Navy | 1918–1925 | 900 | 48 |
| S | Destroyer | Royal Navy | 1942–1943 | 1,710 | 8 |
| S (Admiralty) | Destroyer | Royal Navy | 1917–1918 | 1,092 | 11 / 55 |
| S (Thornycroft) | Destroyer | Royal Navy | 1917–1918 | 1,092 | 5 |
| S (Yarrow) | Destroyer | Royal Navy | 1917–1918 | 1,092 | 7 |
| Salmon | Submarine | United States Navy | 1937–1938 | 1,430 | 6 |
| Sangamon | Escort carrier | United States Navy | 1939 | 11,400 | 4 |
| Sargo | Submarine | United States Navy | 1938–1939 | 1,450 | 10 |
| Sauro | Destroyer | Regia Marina | 1926–1927 | 1,137 | 4 |
| Scharnhorst | Battleship | Kriegsmarine | 1936 | 38,700 | 2 |
| Sella | Destroyer | Regia Marina | 1927 | 1,480 | 2 |
| Sendai | Light cruiser | Imperial Japanese Navy | 1923–1925 | 5,113 | 3 |
| Serrano | Destroyer | Chilean Navy | 1928 | 1,090 | 6 |
| Shiratsuyu | Destroyer | Imperial Japanese Navy | 1935–1937 | 1,685 | 10 |
| Shōkaku | Aircraft carrier | Imperial Japanese Navy | 1938-1941 | 32,100 | 2 |
| Sims | Destroyer | United States Navy | 1938–1939 | 1,764 | 12 |
| Sirena | Submarine | Regia Marina | 1934 | 678 | 12 |
| Sirtori | Torpedo boat | Regia Marina | 1917 | 845 | 4 |
| Sleipner | Destroyer | Royal Norwegian Navy | 1936–1938 | 597 | 3 |
| Søbjørnen | Minesweeper | Royal Danish Navy | | 270 | 6 |
| Soldati | Destroyer | Regia Marina | 1937–1942 | 1,620 | 19 |
| Somers | Destroyer | United States Navy | 1937–1938 | 2,047 | 5 |
| South Dakota | Battleship | United States Navy | 1941–1942 | 44,519 | 4 |
| Spica | Torpedo boat | Regia Marina | 1936–1938 | 640 | 30 |
| Squalo | Submarine | Regia Marina | 1930 | 933 | 4 |
| St. Louis | Light cruiser | United States Navy | 1939 | 10,000 | 2 |
| Suffren | Heavy cruiser | French Navy | 1927–1930 | 9,940 | 4 |
| T | Destroyer | Royal Navy | 1942–1943 | 1,710 | 8 |
| T2 | Auxiliary oil tanker | United States Navy | 1939–1945 | 21,100–22,445 | 533 |
| Tachibana | Destroyer | Imperial Japanese Navy | 1919–1922 | 1,289 | 14 |
| Tacoma | Frigate | United States Navy | 1943–1945 | 1,400 | 96 |
| Taiyō | Escort carrier | Imperial Japanese Navy | 1939–1940 | 20,000 | 3 |
| Takao | Heavy cruiser | Imperial Japanese Navy | 1930–1931 | 9,850 | 4 |
| Tambor | Submarine | United States Navy | 1939–1941 | 1,475 | 12 |
| Tench | Submarine | United States Navy | 1944–1951 | 1,826 | 31 |
| Tennessee | Battleship | United States Navy | 1919 | 33,000 | 2 |
| Thornycroft | Destroyer flotilla leader | Royal Navy | 1918–1919 | 1,480 | 3 / 5 |
| Tone | Heavy cruiser | Imperial Japanese Navy | 1937–1938 | 11,215 | 2 |
| Tordenskjold | Coastal defence ship | Royal Norwegian Navy | 1897–1898 | 3,852 | 2 |
| Town | Destroyer | Royal Navy | 1917–1919 | 1,020–1,190 | 50 |
| Town (Southampton) | Light cruiser | Royal Navy | 1936 | 9,100 | 5 |
| Town (Gloucester) | Light cruiser | Royal Navy | 1937 | 9,400 | 3 |
| Town (Edinburgh) | Light cruiser | Royal Navy | 1938 | 10,400 | 2 |
| Trad | Torpedo boat | Royal Thai Navy | 1935–1937 | 262 | 9 |
| Treasury | High endurance cutter | United States Coast Guard | 1936–1937 | 2,700 | 7 |
| Trento | Heavy cruiser | Regia Marina | 1926–1932 | 10,511–10,890 | 3 |
| Tribal | Destroyer | Royal Navy | 1937–1946 | 1,854–1,927 | 27 |
| Tromp | Light cruiser | Royal Netherlands Navy | 1937–1939 | 3,450 | 2 |
| Trygg | Torpedo boat | Royal Norwegian Navy | 1919–1921 | 220 | 3 |
| Turbine | Destroyer | Regia Marina | 1927–1928 | 1,090 | 8 |
| Type 23 | Torpedo boat | Kriegsmarine | 1926 | 923 | 6 |
| Type 24 | Torpedo boat | Kriegsmarine | 1926–1927 | 923 | 6 |
| Type 35 | Torpedo boat | Kriegsmarine | 1937–1939 | 844 | 12 |
| Type 37 | Torpedo boat | Kriegsmarine | 1938–1940 | 888 | 9 |
| Type 39 | Torpedo boat | Kriegsmarine | 1940–1944 | 1,754 | 15 |
| Type 40 | Torpedo boat | Kriegsmarine | 1944 | 2,566 | 7 (4 launched, but not completed) |
| Type 41 | Torpedo boat | Kriegsmarine | 1944 | 2,155 | 14 (3 launched, but not completed) |
| Type C1 ship | Auxiliary cargo ship | United States Navy | 1942–1945 | 6,240–8,015 | 408 |
| Type C2 ship | Auxiliary cargo ship | United States Navy | 1944–1945 | 13,910 | 173 |
| Type C3 ship | Auxiliary cargo ship | United States Navy | 1940–1947 | 12,000 | 465 |
| Type C4 ship | Auxiliary cargo ship | United States Navy | 1940–1947 | 11,757–12,420 | 75 |
| Type I | Submarine | Kriegsmarine | 1936 | 892 | 2 |
| Type II | Submarine | Kriegsmarine | 1939–1940 | 300 | 50 |
| Type VII | Submarine | Kriegsmarine | 1935–1944 | 626–1,084 | 743 |
| Type IX | Submarine | Kriegsmarine | 1937–1944 | 1,032–1,616 | 193 |
| Type X | Submarine | Kriegsmarine | 1941–1943 | 1,763–2,177 | 8 |
| Type XIV | Submarine | Kriegsmarine | 1940–1943 | 1,688–1,932 | 10 |
| Type XVII | Submarine | Kriegsmarine | 1942–1945 | 277–415 | 7 |
| Type XXI | Submarine | Kriegsmarine | 1944–1945 | 1,621–1,819 | 118 |
| Type XXIII | Submarine | Kriegsmarine | 1944–1945 | 234–258 | 61 |
| U | Destroyer | Royal Navy | 1942–1943 | 1,777–1,808 | 8 |
| Unryū | Aircraft carrier | Imperial Japanese Navy | 1943–1944 | 22,534 | 3 |
| V | Destroyer | Royal Navy | 1942–1943 | 1,777–1,808 | 8 |
| V (Admiralty) | Destroyer | Royal Navy | 1917–1918 | 1,100 | 17 / 23 |
| V (Admiralty leader) | Destroyer flotilla leader | Royal Navy | 1917 | 1,207 | 3 / 5 |
| V (Thornycroft) | Destroyer | Royal Navy | 1917–1918 | 1,120 | 2 |
| V7 | River gunboat | Romanian Naval Forces | 1943 | | 2 |
| Väinämöinen | Coastal defence ship | Finnish Navy | 1931–1932 | 3,900 | 2 |
| Van Galen | Destroyer | Royal Netherlands Navy | 1927–1928 | 1,316 | 4 |
| Van Ghent | Destroyer | Royal Netherlands Navy | 1926–1927 | 1,316 | 4 |
| Vasilefs Georgios | Destroyer | Hellenic Navy | 1938 | 1,350 | 2 |
| Vauquelin | Destroyer | French Navy | 1931–1932 | 2,441 | 6 |
| Vedenia | Motor torpedo boat | Romanian Naval Forces | 1943–1944 | 30 | 6 |
| Veinticinco de Mayo | Heavy cruiser | Argentine Navy | 1928–1929 | 6,800 | 2 |
| W | Destroyer | Royal Navy | 1943–1944 | 1,710 | 8 |
| W (Admiralty) | Destroyer | Royal Navy | 1917–1918 | 1,100–1,140 | 32 / 33 |
| W (Thornycroft) | Destroyer | Royal Navy | 1917–1918 | 1,120–1,140 | 4 |
| Wakatake | Destroyer | Imperial Japanese Navy | 1922–1923 | 900 | 6 |
| Wicher | Destroyer | Polish Navy | 1928–1929 | 1,540 | 2 |
| Wickes | Destroyer | United States Navy | 1917–1919 | 1,090 | 33 |
| Wyoming | Battleship | United States Navy | 1911 | 27,000 | 2 |
| X | Submarine | Royal Navy | 1943–1945 | 30 | 14 |
| XE | Submarine | Royal Navy | 1943–1945 | 33 | 12 |
| XT | Training submarine | Royal Navy | 1943–1945 | 30 | 6 |
| Yamato | Battleship | Imperial Japanese Navy | 1940 | 71,659 | 2 |
| YMS-1-class minesweeper | Minesweeper | United States Navy | 1942 | 270 | 481 |
| York | Heavy cruiser | Royal Navy | 1928–1929 | 8,300 | 2 |
| Yorktown | Aircraft carrier | United States Navy | 1936–1940 | 23,000 | 3 |
| Yūgumo | Destroyer | Imperial Japanese Navy | 1941–1944 | 2,077 | 19 |
| Z | Destroyer | Royal Navy | 1943–1944 | 1,710 | 8 |
| Wilk | Submarine | Polish Navy | 1929–1955 | 1,250 | 3 |
| Zara | Heavy cruiser | Regia Marina | 1930–1931 | 11,680 | 4 |
| Zuihō | Light aircraft carrier | Imperial Japanese Navy | 1936-1942 | 11,443 | 2 |

## Single-ship "classes"

List of single-ship classes of World War II :
| Class | Type | Country | Launch Year | Displacement (tons) |
| Akagi | Aircraft carrier | Imperial Japanese Navy | 1925 | 36,500 |
| Algérie | Heavy cruiser | French Navy | 1932 | 10,000 |
| Argonaut | Submarine | United States Navy | 1927 | 4,161 |
| Ark Royal | Aircraft carrier | Royal Navy | 1937 | 22,000 |
| Aquila | Aircraft carrier | Regia Marina | N/A | 23,500 |
| Béarn | Aircraft carrier | French Navy | 1920 | 22,146 |
| Dristigheten | Seaplane carrier | Swedish Navy | 1927 | 3,445 |
| Ettore Fieramosca | Submarine | Regia Marina | 1930 | 1,556 |
| Graf Zeppelin | Aircraft carrier | Kriegsmarine | N/A | 33,550 |
| Hiryū | Aircraft carrier | Imperial Japanese Navy | 1937 | 17,300 |
| Hood | Battlecruiser | Royal Navy | 1918 | 45,470 |
| Hōshō | Aircraft carrier | Imperial Japanese Navy | 1921 | 7,470 |
| Kaga | Aircraft carrier | Imperial Japanese Navy | 1921 | 38,200 |
| Kaiyō | Escort carrier | Imperial Japanese Navy | 1938 | 13,600 |
| Nisshin | Seaplane tender | Imperial Japanese Navy | 1939 | 11,317 |
| Ōyodo | Light cruiser | Imperial Japanese Navy | 1942 | 8,164 |
| Ranger | Aircraft carrier | United States Navy | 1933 | 17,577 |
| Ryūhō | Light aircraft carrier | Imperial Japanese Navy | 1942 | 16,700 |
| Ryūjō | Light aircraft carrier | Imperial Japanese Navy | 1931 | 8,000 |
| Settembrini | Submarine | Regia Marina | 1932 | 953 |
| Shimakaze | Destroyer | Imperial Japanese Navy | 1942 | 2,570 |
| Shinano | Aircraft carrier | Imperial Japanese Navy | 1944 | 65,800 |
| Sōryū | Aircraft carrier | Imperial Japanese Navy | 1935 | 16,200 |
| Surcouf | Cruiser submarine | French Navy | 1929 | 3,250-4,304 |
| Taihō | Aircraft carrier | Imperial Japanese Navy | 1943 | 30,250 |
| Wasp | Aircraft carrier | United States Navy | 1939 | 19,000 |
| Wichita | Heavy cruiser | United States Navy | 1935 | 10,589 |
| Yūbari | Light cruiser | Imperial Japanese Navy | 1923 | 2,890 |