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

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)
	Torpedo boat/Gunboat		1914	266	3
A	Submarine		1914	268	3
	Submarine		1935	697	13
Active	Patrol boat/Cutter		1927	232	35
	Submarine		1936	697	17
	Submarine		1915	237	5
	Minesweeper		1937	17	6
	Submarine		1936	985	2
	Submarine		1936	810	2
	Submarine		1932	667	10
B	Submarine		1923–29	365	6
	Submarine		1930	937	4
	Minesweeper		1940–44	600	128
	Minesweeper		1938–40	607	45
	Submarine		1931	982	2
C	Submarine			369	3
	Patrol boat			400	10
	Torpedo boat		1933	535	4
	Torpedo boat		1923–24	967	4
D	Submarine			369	2
	Naval trawler		1940	554	20
	Destroyer		1929–34	290	9
	Destroyer		1910–13 (approx.)	578	3
Eagle	Patrol boat		1918-19	625	60
	Corvette		1939–44	940	225
	Corvette		1942	672	40
	Torpedo boat		1921	832	6
	Gunboat/Minesweeper		1884-87	290	2
H	Submarine			407	4
Ha-101	Transport submarine		1944–1945	501	10
Ha-201	Submarine		1945	440	10
	Naval trawler		1940–44	554	145
Jaskółka	Minesweeper		1934–1938	183	6
	Minesweeper		1941–46	18	6
	Torpedo boat		1914–15	270	3
	Torpedo boat		1917	840	8
	Submarine		1940–41	825	2
	Submarine		1929	880	4
	Destroyer		1918–23	770	21
	Destroyer		1917–18	835	4
	Torpedo boat		1943	782	2
	Destroyer		1939	632	3
	Torpedo boat		1935–37	840	8
	Submarine		1940	856	4
	Torpedo boat		1938	840	4
	Submarine		1936	697	10
	Coast Guard vessel	Colombia		120	3
	Torpedo boat		1915	770	7
	Submarine		1930	880	4
	Torpedo boat		1915–16	266	2
R	Submarine		1918–19	570	27
Ro-100	Submarine		1941–1943	782	18
S	Submarine		1931–45	950	63
S	Submarine		1918–25	900	48
	Submarine		1932	953
	Naval trawler		1940	554	12
	Submarine		1934	678	12
	Torpedo boat		1917	845	4
	Destroyer		1936–38	597	3
	Minesweeper			270	6
	Torpedo boat		1936–38	640	30
	Submarine		1930	933	4
	Torpedo boat		1935–37	262	9
	Naval trawler		1939–40	545	20
	Torpedo boat		1919–21	220	3
Type 23	Torpedo boat		1926	923	6
Type 24	Torpedo boat		1926–27	923	6
Type 35	Torpedo boat		1937–39	844	12
Type 37	Torpedo boat		1938–40	853	9
Type I	Submarine		1936	892	2
Type II	Submarine		1939–40	300	50
	Submarine		1938-43	540	49
	Gunboat		1874-78	260	5
	Motor torpedo boat		1943–44	30	6
	Destroyer		1922–23	900	6
Wilk	Submarine		1929–1931	980	3
	Submarine		1943–45	30	14
	Submarine		1943–45	33	12
XT	Training submarine		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
• (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
• (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
• (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