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