# List of World War II ships of less than 1000 tons

The list of World War II ships of less than 1000-tons is an alphabetical list of minor military ships and ship classes of World War II. Only ships with a displacement of less than 1000 tons are listed. For larger vessels, see list of World War II ships. For other ship classes, see the list of World War II ship classes.

## Ship classes of World War II (1,000 tons or less)

| Class | Type | Country | Launch years | Displacement (tons) | Number (wartime/total built) |
| 250t | Torpedo boat/Gunboat | Romanian Naval Forces | 1914 | 266 | 3 |
| A | Submarine | Royal Norwegian Navy | 1914 | 268 | 3 |
| Acciaio | Submarine | Regia Marina | 1935 | 697 | 13 |
| Active | Patrol boat/Cutter | United States Coast Guard | 1927 | 232 | 35 |
| Adua | Submarine | Regia Marina | 1936 | 697 | 17 |
| Ægir | Submarine | Royal Danish Navy | 1915 | 237 | 5 |
| Ahven | Minesweeper | Finnish Navy | 1937 | 17 | 6 |
| Archimede | Submarine | Regia Marina | 1936 | 985 | 2 |
| Argo | Submarine | Regia Marina | 1936 | 810 | 2 |
| Argonauta | Submarine | Regia Marina | 1932 | 667 | 10 |
| B | Submarine | Royal Norwegian Navy | 1923–29 | 365 | 6 |
| Bandiera | Submarine | Regia Marina | 1930 | 937 | 4 |
| Bangor | Minesweeper | Royal Navy | 1940–44 | 600 | 128 |
| Bird | Minesweeper | Royal Navy | 1938–40 | 607 | 45 |
| Bragadin | Submarine | Regia Marina | 1931 | 982 | 2 |
| C | Submarine | Royal Danish Navy | | 369 | 3 |
| Chang Ning | Patrol boat | Republic of China Navy | | 400 | 10 |
| Chidori | Torpedo boat | Imperial Japanese Navy | 1933 | 535 | 4 |
| Curtatone | Torpedo boat | Regia Marina | 1923–24 | 967 | 4 |
| D | Submarine | Royal Danish Navy | | 369 | 2 |
| Dance | Naval trawler | Royal Navy | 1940 | 554 | 20 |
| Dragen | Destroyer | Royal Danish Navy | 1929–34 | 290 | 9 |
| Draug | Destroyer | Royal Norwegian Navy | 1910–13 (approx.) | 578 | 3 |
| Eagle | Patrol boat | United States Navy | 1918-19 | 625 | 60 |
| Flower | Corvette | Royal Navy  Royal Canadian Navy | 1939–44 | 940 | 225 |
| Gabbiano | Corvette | Regia Marina | 1942 | 672 | 40 |
| Generali | Torpedo boat | Regia Marina | 1921 | 832 | 6 |
| Gor | Gunboat/Minesweeper | Royal Norwegian Navy | 1884-87 | 290 | 2 |
| H | Submarine | Royal Danish Navy | | 407 | 4 |
| Ha-101 | Transport submarine | Imperial Japanese Navy | 1944–1945 | 501 | 10 |
| Ha-201 | Submarine | Imperial Japanese Navy | 1945 | 440 | 10 |
| Isles | Naval trawler | Royal Navy | 1940–44 | 554 | 145 |
| Jaskółka | Minesweeper | Polish Navy | 1934–1938 | 183 | 6 |
| Kuha | Minesweeper | Finnish Navy | 1941–46 | 18 | 6 |
| Kyzikos | Torpedo boat | Hellenic Navy | 1914–15 | 270 | 3 |
| La Masa | Torpedo boat | Regia Marina | 1917 | 840 | 8 |
| Mackerel | Submarine | United States Navy | 1940–41 | 825 | 2 |
| Mameli | Submarine | Regia Marina | 1929 | 880 | 4 |
| Momi | Destroyer | Imperial Japanese Navy | 1918–23 | 770 | 21 |
| Momo | Destroyer | Imperial Japanese Navy | 1917–18 | 835 | 4 |
| Najaden | Torpedo boat | Royal Danish Navy | 1943 | 782 | 2 |
| Odin | Destroyer | Royal Norwegian Navy | 1939 | 632 | 3 |
| Ōtori | Torpedo boat | Imperial Japanese Navy | 1935–37 | 840 | 8 |
| Oruç Reis | Submarine | Royal Navy | 1940 | 856 | 4 |
| Orsa | Torpedo boat | Regia Marina | 1938 | 840 | 4 |
| Perla | Submarine | Regia Marina | 1936 | 697 | 10 |
| Pichincha | Coast Guard vessel | Colombia | | 120 | 3 |
| Pilo | Torpedo boat | Regia Marina | 1915 | 770 | 7 |
| Pisani | Submarine | Regia Marina | 1930 | 880 | 4 |
| Proussa | Torpedo boat | Hellenic Navy | 1915–16 | 266 | 2 |
| R | Submarine | United States Navy | 1918–19 | 570 | 27 |
| Ro-100 | Submarine | Imperial Japanese Navy | 1941–1943 | 782 | 18 |
| S | Submarine | Royal Navy | 1931–45 | 950 | 63 |
| S | Submarine | United States Navy | 1918–25 | 900 | 48 |
| Settembrini | Submarine | Regia Marina | 1932 | 953 | |
| Shakespearian | Naval trawler | Royal Navy | 1940 | 554 | 12 |
| Sirena | Submarine | Regia Marina | 1934 | 678 | 12 |
| Sirtori | Torpedo boat | Regia Marina | 1917 | 845 | 4 |
| Sleipner | Destroyer | Royal Norwegian Navy | 1936–38 | 597 | 3 |
| Søbjørnen | Minesweeper | Royal Danish Navy | | 270 | 6 |
| Spica | Torpedo boat | Regia Marina | 1936–38 | 640 | 30 |
| Squalo | Submarine | Regia Marina | 1930 | 933 | 4 |
| Trad | Torpedo boat | Royal Thai Navy | 1935–37 | 262 | 9 |
| Tree | Naval trawler | Royal Navy | 1939–40 | 545 | 20 |
| Trygg | Torpedo boat | Royal Norwegian Navy | 1919–21 | 220 | 3 |
| Type 23 | Torpedo boat | Kriegsmarine | 1926 | 923 | 6 |
| Type 24 | Torpedo boat | Kriegsmarine | 1926–27 | 923 | 6 |
| Type 35 | Torpedo boat | Kriegsmarine | 1937–39 | 844 | 12 |
| Type 37 | Torpedo boat | Kriegsmarine | 1938–40 | 853 | 9 |
| Type I | Submarine | Kriegsmarine | 1936 | 892 | 2 |
| Type II | Submarine | Kriegsmarine | 1939–40 | 300 | 50 |
| U | Submarine | Royal Navy | 1938-43 | 540 | 49 |
| Vale | Gunboat | Royal Norwegian Navy | 1874-78 | 260 | 5 |
| Vedenia | Motor torpedo boat | Romanian Naval Forces | 1943–44 | 30 | 6 |
| Wakatake | Destroyer | Imperial Japanese Navy | 1922–23 | 900 | 6 |
| Wilk | Submarine | Polish Navy | 1929–1931 | 980 | 3 |
| X | Submarine | Royal Navy | 1943–45 | 30 | 14 |
| XE | Submarine | Royal Navy | 1943–45 | 33 | 12 |
| XT | Training submarine | Royal Navy | 1943–45 | 30 | 6 |

## Ships of World War II of 1,000 tons or less

* Ahti (Estonia): 140-ton gunboat
* Ajonpää (Finland): 52-ton Ajonpää class minesweeper
* Amiral Murgescu (Romania): 812-ton minelayer
* Aura (Finland): 400-ton coast guard and escort vessel
* Aura II (Finland): 563-ton presidential yacht and escort vessel
* Aurora (Romania): 314-ton minelayer
* Baire (Cuba): 500-ton gunboat
* Barranquilla (Colombia): 142-ton gunboat
* Bathurst Class (Argentina): 500-ton minesweeper
* Belomorec (Bulgaria): 77-ton patrol boat
* Beskytteren (Denmark): 415-ton fisheries patrol vessel
* Birago (Germany): 50-ton patrol boat, ex-Siofok (Austria)
* Bogota (Colombia): 360-ton gunboat
* Bouchard class (Argentina): 450-ton minesweeper
* Brand (Norway): 107-ton torpedo boat
* Capitan Quevedo (Cuba): 115-ton coast guard craft
* Carabobo (Colombia): 120-ton coast guard vessel
* Carioca (Brazil): 552-ton mine layer
* Cartagena (Colombia): 142-ton gunboat
* Chiang Kung (China): 250-ton patrol boat
* Chiang Tai (China): 250-ton patrol boat
* Chen Shen (China): 275-ton river gunboat
* Chernomorec (Bulgaria): 77-ton patrol boat
* Chi Jih (China): 500-ton survey vessel
* Chien Chung (China): 90-ton river gunboat
* Chien Kang (China): 390-ton destroyer, became Yamasemi (Japan)
* Chu Chien (China): 740-ton gunboat
* Chu Kuan (China): 740-ton gunboat
* Chu Tai (China): 740-ton gunboat
* Chu Tung (China): 740-ton gunboat
* Chu Yiu (China): 740-ton gunboat
* Chu Yu (China): 740-ton gunboat
* Chung Shan (China): 780-ton gunboat, ex-Yung Feng
* Cordoba (Argentina): 890-ton destroyer
* Cordoba (Colombia): 360-ton gunboat
* Czajka (Poland) 183-ton minesweeper
* Czapla (Poland) 183-ton minesweeper
* Delfinul (Romania): 650-ton submarine
* Diez de Octubre (Cuba): 218-ton gunboat
* Dragen (Denmark): 290-ton torpedo boat, became TFA3 (Germany)
* Drazki (Bulgaria): 97-ton torpedo boat and minesweeper, commissioned 5 Jan 1908, today museum ship
* Durres (Albania): 46-ton patrol boat
* El Fateh (Egypt): 128-ton river gunboat
* El Zahir (Egypt): 128-ton river gunboat
* Elicura (Chile): 400-ton coast guard vessel
* Fei Ying (China): 850-ton destroyer
* Freja (Denmark): 322-ton patrol boat, became Sudpol (Germany), then Freya (Germany)
* Fresia (Chile): 435-ton submarine
* Frøya (Norway): 870-ton minelayer
* Fu Yu (China): 630-ton gunboat
* General Haller (Poland): 342-ton gunboat
* Glenten (Denmark): 290-ton torpedo boat
* Glommen (Norway): 351-ton minelayer
* Guacolda (Chile): 435-ton submarine
* Guale (Chile): 435-ton submarine
* Hafir (Egypt): 74-ton river gunboat
* Hai Fu (China): 166-ton gunboat
* Hai Ho (China): 211-ton river gunboat
* Hai Hung (China): 190-ton gunboat
* Hai Ku (China): 190-ton gunboat
* Hai Ou (China): 166-ton patrol boat
* Hai Peng (China): 211-ton river gunboat
* Hai Yen (China): 56-ton patrol boat
* Hämeenmaa (Finland): 400-ton training sloop
* Havkatten (Denmark): 108-ton torpedo boat
* Havørnen (Denmark): 108-ton torpedo boat and minesweeper
* Heimdal (Norway): 578-ton offshore patrol vessel
* Hejmdal (Denmark): 705-ton patrol boat, became Nerger (Germany)
* Henrik Gerner (Denmark): 463-ton submarine tender and minelayer
* Henrique Diaz (Brazil): 680-ton trawler
* Hitra (Norway): 125-ton submarine chaser
* Høgen (Denmark): 290-ton torpedo boat, became TFA1 (Germany)
* Hoi Fu (China): 680-ton gunboat
* Honningsvåg (Norway): 487-ton naval trawler
* Hsien Ning (China): 418-ton gunboat
* Hu Ngo (China): 97-ton torpedo boat, became Kawasemi (Japan)
* Hu Peng (China): 97-ton torpedo boat
* Hu Tsuin (China): 97-ton torpedo boat
* Hu Ying (China): 97-ton torpedo boat
* Hvalen (Denmark): 290-ton torpedo boat, became TFA5 (Germany)
* Hvalrossen (Denmark): 160-ton torpedo boat
* Incessant (United States): 650-ton minesweeper
* Iguape (Brazil): 150-ton minesweeper
* Iku-Turso (Finland): 716-ton submarine
* Ilmatar (Estonia): gunboat
* Islands Falk (Denmark): 760-ton fishery patrol vessel
* Itacuruca (Brazil): 210-ton mine layer
* Itajahy (Brazil): 150-ton minesweeper
* Itapemirim (Brazil): 340-ton mine layer
* Jaskółka (Poland): 183-ton minesweeper
* Jen Shen (China): 300-ton gunboat
* Junín (Colombia): 120-ton coast guard vessel
* Jurmo (Finland): 400-ton tug
* Kalanpää (Finland): 52-ton Ajonpää class minesweeper
* Kalev (Estonia): 834-ton submarine
* Karjala (Finland): 342-ton gunboat
* Khrabry (Bulgaria): 97-ton minesweeper
* Kiang Chen (China): 550-ton gunboat
* Kiang Heng (China): 550-ton gunboat
* Kiang Hsi (China): 140-ton gunboat
* Kiang Kun (China): 140-ton gunboat
* Kiang Li (China): 550-ton gunboat
* Kiang Yuan (China): 550-ton gunboat
* King (Argentina): 900-ton gunboat
* Kjell (Norway): 84-ton 2nd class torpedo boat
* King Haakon VII (Norway): 357-ton PC class escort ship
* Komendant Piłsudski (Poland) 342-ton gunboat
* Kung Chen (China): 90-ton river gunboat
* Kvintus (Denmark): 186-ton minelayer, became Fürstenburg (Germany)
* La Plata (Argentina): 890-ton destroyer
* Laaland (Denmark): 350-ton minelayer
* Laine (Estonia): 211-ton gunboat
* Laxen (Denmark): 290-ton torpedo boat, became TFA6 (Germany)
* Lech (Poland) 280-ton Tugboat
* Lembit (Estonia): 834-ton submarine
* Leopard, former HNoMS Balder (Norway, then Germany): 708-ton torpedo boat, returned to Norway 1949, scrapped 1961
* Li Chieh (China): 266-ton gunboat, became Lisui (Japan)
* Lieska (Finland): 60-ton minelayer
* Lindormen (Denmark): 614-ton minelayer, became Vs1401 (Germany)
* Loimu (Finland): 60-ton minelayer
* Lossen (Denmark): 628-ton minelayer
* Lougen (Denmark): 350-ton minelayer
* Louhi (Finland): 640-ton minelayer and submarine tender
* Maagen (Denmark): 110-ton fishery patrol vessel
* Makrelen (Denmark): 108-ton torpedo boat
* Maranho (Brazil): 934-ton destroyer
* Mardus (Estonia): 80-ton gunboat
* Mariscal Sucre (Colombia): 125-ton gunboat
* Marsuinul (Romania): 636-ton submarine
* Mato Grosso (Brazil): 560-ton destroyer
* Mazur (Poland) 340-ton torpedo boat
* Mewa (Poland): 183-ton minesweeper
* Miina (Finland): 80-ton mine tender
* Ming Chuen (China): 465-ton gunboat
* Ming Sen (China): 465-ton gunboat, captured by Japan
* MTB 102 (UK) 68-foot Motor Torpedo Boat
* MTB 345 (UK, then Norway) 16.05-ton Motor Torpedo Boat
* Murature (Argentina): 900-ton gunboat
* Najaden (Denmark): 782-ton torpedo boat, completed 1947
* Năluca (Romania): 266-ton torpedo boat
* Narhvalen (Denmark): 108-ton torpedo boat and minesweeper
* Narvi (Finland): 400-ton tug
* SS Nautilus (India): 300 ton gun boat and coast guard
* Nordkaperen (Denmark): 108-ton torpedo boat
* Nordkapp (Norway): 275-ton fishery protection vessel
* Nymphen (Denmark): 782-ton torpedo boat, completed 1947
* Ørnen (Denmark): 290-ton torpedo boat, became TFA2 (Germany)
* Otra (Norway): 355-ton minesweeper
* Panay (USA): 474-ton river gunboat, sunk 12 December 1937
* Paraguacu (Brazil): 430-ton river monitor
* Parnaiba (Brazil): 620-ton river monitor
* Paukku (Finland): 60-ton minelayer
* Pernambuco (Brazil): 470-ton river monitor
* Pichincha (Colombia): 120-ton coast guard vessel, class of 3
* Pikker (Estonia): 500-ton gunboat, became Kiev (USSR) and later Luga (USSR)
* Pol III (Norway): 214-ton guard vessel
* Pommi (Finland): 80-ton mine tender
* Porkala (Finland): 162-ton minesweeper
* Prezidentas Smetona (Lithuania): 526-ton gunboat, became Pirmūnas and later Korall (USSR) and T-33 (USSR)
* Pukkio (Finland): 162-ton minesweeper
* Quidora (Chile): 435-ton submarine
* Rauma (Norway): 355-ton minesweeper
* Rautu (Finland): 165-ton minesweeper
* Rechinul (Romania): 585-ton submarine
* Reiher (Germany): 109-ton training vessel, ex-West Diep (Belgium), became Warendorp
* Riilahti (Finland): 310-ton minelayer and antisubmarine escort
* Rio Pardo (Brazil): 132-ton submarine chaser
* Ristna (Estonia): 500-ton sidewheeler minelayer
* Rucamilla (Chile): 435-ton submarine
* Ruotsinsalmi (Finland): 310-ton minelayer and antisubmarine escort
* Rybitwa (Poland): 183-ton minesweeper
* Ryś (Poland): 980-ton submarine
* Sæl (Norway): 107-ton 1. class torpedo boat
* Sælen (Denmark): 108-ton torpedo boat
* Salta (Argentina): 920-ton submarine
* Santa Fe (Argentina): 920-ton submarine
* Santa Marta (Colombia): 142-ton gunboat
* Santiago del Estero (Argentina): 920-ton submarine
* Saranda (Albania): 46-ton patrol boat
* Saukko (Finland): 142-ton submarine
* Sborul (Romania): 262-ton torpedo boat
* Shu Shen (China): 380-ton gunboat
* Siofuk (Austria): 50-ton patrol boat, became the Birago (Germany)
* Sixtus (Denmark): 186-ton minelayer
* Smely (Bulgaria): 97-ton torpedo boat and minesweeper
* Smeul (Romania): 266-ton torpedo boat
* Smok (Poland): 711-ton tugboat
* Søhunden (Denmark): 108-ton torpedo boat and minesweeper
* Søridderen (Denmark): 108-ton torpedo boat and minesweeper, became Hajen (Germany)
* Springeren (Denmark): 108-ton torpedo boat and minesweeper
* Støren (Denmark): 108-ton torpedo boat and minesweeper
* Storm (Norway): 107-ton torpedo boat
* Strogi (Bulgaria): 97-ton torpedo boat and minesweeper
* Sublocotenent Ghiculescu (Romania): 344-ton ASW gunboat
* Sulev (Estonia): 228-ton torpedo boat, became Ametist (USSR)
* Suurop (Estonia): 500-ton sidewheeler minelayer and minesweeper
* Ta Tung (China): 900-ton patrol boat
* Taara (Estonia): gunboat
* Tamoio (Brazil): 844-ton submarine, ex-Ascianghi (Italy)
* Tartu (Estonia): 108-ton gunboat
* Tegualda (Chile): 435-ton submarine
* Teh Sheng (China): 932-ton gunboat, scuttled 1937
* Ternen (Denmark): 100-ton surveying tender and patrol boat
* Timbira (Brazil): 844-ton submarine, ex-Gondor (Italy)
* Tirane (Albania): 46-ton patrol boat
* Thorodd (Norway): 406-ton patrol boat
* Tse Chiang (China): 900-ton patrol boat
* Tung An (China): 390-ton destroyer
* Tupi (Brazil): 844-ton submarine, ex-Italian submarine Neghelli
* Tursas (Finland): 360-ton trawler
* Turunmaa (Finland): 342-ton gunboat
* Uisko (Finland): 360-ton trawler
* Uruguay (Argentina): 550-ton sloop
* Uku (Estonia): Gunboat
* Uusimaa (Finland): 400-ton gunboat
* Veinti y Cuatro de Febrero (Cuba): 218-ton gunboat
* Vesihiisi (Finland): 716-ton submarine
* Vesikko (Finland): 300-ton submarine
* Vetehinen (Finland): 716-ton submarine
* Vidar (Norway): 260-ton minelayer
* Vilppula (Finland): 165-ton minesweeper
* Viraitis (Latvia): 586-ton gunboat and minesweeper, became T-297 (USSR)
* Vlorë (Albania): 46-ton patrol boat
* Wakakura (New Zealand): 540-ton Castle class naval trawler
* Warendorp (Germany): 109-ton training vessel, ex-Reiher
* Wei Sheng (China): 932-ton gunboat, scuttled in 1937
* West Diep (Belgium): 109-ton torpedo boat, became Reiher (Germany)
* Wielingen (Belgium): 227-ton torpedo boat
* Wilk (Poland) 980-ton submarine
* Wu Feng (China): 200-ton gunboat
* Yi Shen (China): 350-ton gunboat
* YP-19 (USA), 37.5-ton patrol vessel
* Yung An (China): 90-ton river gunboat
* Yung Chi (China): 860-ton gunboat, became Hai Hsing (Japan)
* Yung Chien (China): 860-ton gunboat, became Asuka (Japan)
* Yung Feng (China): 780-ton gunboat, became Chung Shan
* Yung Hsiang (China): 780-ton gunboat
* Yung Shen (China): 300-ton gunboat
* Yung Sui (China): 650-ton river gunboat
* Żbik (Poland) 980-ton submarine
* Żuraw (Poland) 183-ton minesweeper