This is a list of submarine classes, sorted by country. The navies of 46 states operate submarines.

Algeria

• Raïs Hadj Mubarek class (Type 877EKM Kilo)
• Raïs Hadj Slimane class (Type 877EKM Kilo)
• 2 Project 636 (in order)

Albania

• Whiskey class

Argentina

Armada de la República Argentina:

• Santa Fe class (1930s built in Italy — decommissioned)
• Santa Fe (1960s US-built Balao class - decommissioned)
• Santa Fe S-21 (1970s US-built GUPPY - decommissioned)
• Santa Cruz class (German-built TR-1700 - one remaining boat inactive)
• Salta class (German-built Type 209/1200 - inactive; one used for dockside training)

Australia

Royal Australian Navy:

• Oberon class (decommissioned)
• Collins class (Type 471)

Azerbaijan

Bangladesh

Bangladesh Navy:

• Ming class (Type 035/based on Romeo)^[1]

Brazil

Brazilian Navy:

• Foca class (1913) - (decommissioned)
• Humaytá (1927) - (decommissioned)
• Tupi class (1937) - (decommissioned)
• Goiaz class (GUPPY III) (decommissioned)
• Bahia class (GUPPY II) (decommissioned)
• Humaita class (Oberon class) (decommissioned)
• Tupi class (Type 209/1400)
• Tikuna (modified Tupi class) (modified Type 209/1400)
• Riachuelo class (modified Scorpéne class)
• SSN being developed with French help

Bulgaria

• Slava class (Romeo acquired from the USSR)

Canada

Royal Canadian Navy:

• Victoria-class submarine - 4 ex-RN Upholder-class in active service
• Oberon-class submarine (decommissioned after 2000); 3 acquired and 2 for training and spares; 2 sold as museum ship (HMCS Ojibwa (S72) and HMCS Onondaga (S73)) and 3 scrapped (HMS Olympus (S12), HMS Osiris (S13), HMCS Okanagan (S74))
• Tench-class submarine (decommissioned); built for United States Navy; USS Argonaut (SS-475) renamed HMCS Rainbow 1968 and retired 1974
• Balao-class submarine (decommissioned); built for United States Navy; USS Burrfish (SS-312) acquired 1961 and renamed as HMCS Grisle and served until 1969; return to USN and later scrapped.
• British H-class submarine (decommissioned); built in United States; acquired 1919 HMCS CH-14 and HMCS CH-15 and disposed 1927 and 1922 respectively
• CC-class submarine (decommissioned); built in United States for Chilean Navy and sold to British Columbia 1913; CC-1 and CC-2 Commissioned Royal Canadian Navy 1914; scrapped in 1920

Captured and recommissioned German U-boats

• Captured and recommissioned German U-boats - German Type IX submarines German submarine U-190 and German submarine U-889

Chile

• Capitan O'Brien class - built in Britain in late 1920s
• O'Brien class (Oberon class) (decommissioned)
• Thomson class (Type 209/1400) (upgraded)
• O'Higgins class (Scorpène)

People's Republic of China

People's Liberation Army Navy:

• Type 03 class (Whiskey) (decommissioned)
• Type 031 class (Golf) (SSB)
• Type 033 class (Romeo)
• Wuhan class (Type 033G, license built Romeo)
• Ming class (Type 035/based on Romeo)
• Kilo class
• Song class (Type 039)
• Yuan class (Type 041)
• Han class (Type 091) (SSN)
• Xia class (Type 092) (SSBN)
• Shang class (Type 093) (SSN)
• Jin class (Type 094) (SSBN)

Colombia

• Pijao class (Type 209/1200)
• Intrepide class (Italian midget submarine Type SX 506)

Croatia

• modified Una-class midget submarine

Cuba

• Foxtrot class
• Whisky class (Never exported)

Denmark

Royal Danish Navy:^[2]

• D class (1926—1946)
• H class (1938—1950)
• U class (1947—1959)
• V class (1947—1958)
• Delfinen class (1961—1990)
• Narhvalen class (Type 205) (1970—2004)
• Tumleren class (Kobben/Type 207) (1989—2004)
• Kronborg class (Näcken) (2001—2004)

Ecuador

• Shyri class (Type 209/1300) (upgraded)

Estonia

Kalev class mine laying submarines

Estonian Navy:

• EML Kalev (1936)
• EML Lembit

Egypt

• Romeo class (Chinese built, Type 033G?)
• Type 209 submarine 2 ordered

Finland

Finnish Navy:

• Vesikko (World War II)
• Saukko (World War II)
• Vetehinen (World War II)

France

Marine Nationale:

• List of French submarines

Germany

Kaiserliche Marine:

• Type U-1 U-boat
• Type U-2 U-boat
• Type U-3 U-boat
• Type U-5 U-boat
• Type U-9 U-boat
• Type U-13 U-boat
• Type U-16 U-boat
• Type U-17 U-boat
• Type U-19 U-boat
• Type U-23 U-boat
• Type U-27 U-boat
• Type U-31 U-boat
• Type U-43 U-boat
• Type U-51 U-boat
• Type U-57 U-boat
• Type U-63 U-boat
• Type U-66 (Type UD) U-boat
• Type U-81 U-boat
• Type U-87 U-boat
• Type U-93 U-boat
• Type U-127 U-boat
• Type U-139 U-boat
• Type U-142 U-boat
• Type U-151 U-boat
• Type UA U-boat
• Type UB I U-boat
• Type UB II U-boat
• Type UB III U-boat
• Type UC I U-boat
• Type UC II U-boat
• Type UC III U-boat
• Type UE I U-boat
• Type UE II U-boat

Kriegsmarine:

• Type I U-boat
• Type II U-boat
• Type VII U-boat
• Type IX U-boat
• Type X U-boat
• Type XIV U-boat
• Type XVII U-boat
• Type XVIII U-boat
• Type XXI U-boat
• Type XXIII U-boat

Modern German Navy:

• Type 240 class (Type XXIII) (decommissioned)
• Type 241 class (Type XXI) (decommissioned)
• Type 201 class (decommissioned)
• Type 202 class (decommissioned)
• Type 205 class (decommissioned)
• Type 206A class (decommissioned)
• Type 212A class

Export Models:

• Gal class (design only)
• Type 207 class (Kobben)
• Type 209 class
• TR-1700 class
• Type 210 class (Ula)
• Dolphin class
• Type 214 class

Greece

Hellenic Navy

• Katsonis-class submarine
• Protefs-class submarine

Greek Navy:

• Glavkos class (Type 209/1100)
• Poseidon class (Type 209/1200)
• Katsonis class (Type 214)

India

Indian Navy:

• Foxtrot Class
• Shishumar (Type 209) Class
• Sindhughosh (Kilo) Class
• Scorpène Class
• Akula Class.
• Arihant Class

Indonesia

Indonesian Navy:

• Cakra class (Type 209/1300)
• Nagapasa class (Improved Jang Bogo class)
• Scorpène class

Iran

Iranian Navy:

• Tareq class (Kilo)
• SSI
• Ghadir class
• Fateh class
• Nahang class
• Ghaaem class
• Yugo class

Israel

Israeli Navy:

• Gal class
• Dolphin class

Italy

Regia Marina:

• Balilla class
• Medusa class
• Laurenti class
• Cavallini class
• Archimede class
• 600 Serie Adua class submarine
• Marcello class
• Marconi class
• Fieramosca class
• Glauco class
• Brin class
• Foca class

Marina Militare:

• Toti class (decommissioned)
• Nazario Sauro class
• Salvatore Pelosi class (improved Sauro)
• Primo Longobardo class (improved Pelosi)
• Salvatore Todaro class (Type 212A)

Japan

Imperial Japanese Navy

• Ko-hyoteki class submarine (midget)
• Kaidai 1 class (aka I-51)
• Kaidai 2 class (aka I-152)
• Kaidai 3a, 3b class (aka I-153 and I-156)
• Kaidai 4 class (aka I-162)
• Kaidai 5 class (aka I-165)
• Kaidai 6a, 6b class (aka I-168 and I-174)
• Kaidai 7 class (aka I-176)
• Junsen J1 class (aka I-1 class)
• Junsen J2 class (aka I-6)
• Junsen J3 class (aka I-7)
• Junsen A1 class (aka I-9)
• Junsen A2 class (aka I-12)
• Junsen A Modified class (aka I-13)
• Junsen B1 class (aka I-15 series)
• Junsen B2 class (aka I-40)
• Junsen B3 class (aka I-54)
• Junsen C1 class (aka I-16)
• Junsen C2 class (aka I-46)
• Junsen C3 class (aka I-52)
• Sen Toku class (aka I-400)
• Sen Taka Dai class (aka I-200)
• Kiraisen class (aka I-121)
• Senho class (aka I-351)
• D1 class (aka I-361)
• D2 class (aka I-373)
• Kaichū class
• Kaishō class (aka Ro-100)
• Sen Taka Sho class (aka Ha-201)
• LA class

Japan Maritime Self-Defense Force

• United States Gato-class:Kuroshio was commissioned on August 15, 1955 and stricken on March 31, 1966. The first Japanese Maritime Self Defense Force submarine.
• Oyashio (SS-511): A single unit, launched on May 25, 1959 and stricken on September 30, 1976. The first indigenous submarine of the Japanese Maritime Self Defense Force.
• Hayashio class
• Natsushio class
• Oshio class
• Uzushio class
• Yushio class
• Harushio class
• Asashio class (modified Harushio to test Stirling AIP System)
• Oyashio class
• Sōryū class
• Taigei class

Republic of Korea

Republic of Korea Navy:

• Dolgorae class (decommissioned)
• Jang Bogo class (Type 209)
• Sohn Won-yil class (Type 214)
• Dosan Ahn Changho class

North Korea

Korean People's Army:

• Whiskey class (decommissioned?)
• Romeo class
• Sang-O class
• Yugo class (midget submarine)
• Sinpo class

Libya

• Foxtrot (non operational)

Malaysia

Royal Malaysian Navy:

• Agosta 70 class (decommissioned)
• Perdana Menteri class (Scorpène)

Myanmar

Myanmar Navy:

• Kilo class

Netherlands

Royal Dutch Navy:^[3]

• K XI class (decommissioned)
• Walrus (old) class (GUPPY IB) (decommissioned)
• Zwaardvis (old) class (T-class) (decommissioned)
• Dolfijn class (decommissioned)
• Potvis class (enhanced Dolfijn) (decommissioned)
• Zwaardvis class (decommissioned)
• Walrus class

Norway

Royal Norwegian Navy:

• Kobben (1909–1933) One vessel built in Germany.
• A class (1913–1940) Three vessels bought from Germany.
• B class (1922–1946) Six vessels of the U.S. Holland type built under licence in Norway.
• U class (1941–1943) One vessels given to Norway in 1941.
• V class (1949-196X) Two vessels given to Norway in 1943, after the war Norway purchased three more.
• K class (1949-1961) Three vessels left in Norway by the Germans.
• Kobben / Type 207 (1964–2003) Fifteen vessels purchased from Germany.
• Ula / Type 210 (1989-In use) Six vessels purchased from Germany.

Pakistan

• Agosta class
• PNS Ghazi (Formerly USS Diablo)
• Hangor class

Peru

• Abato class (decommissioned)
• Casma class (Type 209/1200)

Poland

Polish Navy:

• Wilk class (3 decommissioned)
• Orzeł class (1 sunk, 1 decommissioned)
• S-1 class (1 sunk)
• U class (2 decommissioned)
• Malyutka class (6 decommissioned)
• Whiskey class (4 decommissioned)
• Foxtrot class (2 decommissioned)
• Kilo class (1 in service)
• Kobben / Type 207 class (4 decommissioned)

Portugal

Portuguese Navy:

• Albacora class (Daphné)
• Type 209mod (planned for 2010, [1])

Romania

• Delfinul class (Kilo - inactive)
• Dalfinul class (World War II)
• Rechinul class
• Marsuinul class
• CB class

Russia (and Soviet Union)

Soviet Navy and Russian Navy:

• See the list of Soviet and Russian submarine classes

Singapore

Republic of Singapore Navy:

• Challenger class (refurbished Swedish Sjöormen class)
• Archer class (originally Swedish Västergötland class, upgraded to Södermanland class standards) (commission planned for 2010)[2]

South Africa

South African Navy:

• Maria van Riebeeck/Spear class (Daphné)
• Heroine class Type 209/1400-mod

Spain

Spanish Navy: [3]

• Peral class
• Isaac Peral class (Laurenti)
• A class (Holland)
• B class (Holland F-105)
• C class (Holland F-105F)
• D class
• General Mola class (Archimede)
• G class (Type VII C)
• Foca class (Spanish version of the Seehund)
• Tiburón class
• Almirante García de los Reyes class (Balao)
• Serie 30 class (Guppy IIA)
• Delfín class (Daphné)
• Galerna class (Agosta)
• S-80 class (in construction)

Export models:

• Gür (E) class
• Scorpene class

Syria

• Romeo class

Sweden

Swedish Navy:

• Hajen class
• Draken class
• Sjöormen class
• Näcken class (Type A-14)
• Västergötland class (Type A-17)
• Södermanland class (upgraded Västergötland)
• Gotland class (Type A-19)
• Blekinge class (Type A-26)

Taiwan

Republic of China Navy:

• Hai Lung class (Zwaardvis-class submarine) class
• Hai Shih class (Tench class) class

Thailand

Royal Thai Navy:

• Matchanu class - 1938–1951

Turkey

Turkish Navy:

• Atilay class (Type 209/1200)
• Preveze class (Type 209T1/1400)
• Gur class (Type 209T2/1400)
• Type 214TN (advanced Type 214)

United Kingdom

Royal Navy:

• Holland class
• A class
• B class
• C class
• D class
• E class
• F class
• G class
• H class
• J class
• L class
• K class
• M class
• Nautilus class
• R class
• HMS X1
• Odin class
• Parthian class
• Rainbow class
• S class
• River class
• Grampus class
• T class
• U class
• P611 class
• V class
• Amphion class
• HMS Meteorite
• Explorer class
• Stickleback class (midget submarines)
• Porpoise class (Diesel-electric hunter-killer)
• Oberon class (Diesel-electric hunter-killer)
• HMS Dreadnought (S101)
• Valiant class attack submarines
• Resolution class ballistic missile submarines
• Churchill class attack submarines
• Swiftsure class attack submarines
• Trafalgar class attack submarines
• Upholder class attack submarines
• Vanguard class SSBN submarines
• Astute class attack submarines

United States

Ukraine

Ukrainian Navy:

• Kherson class (Foxtrot)

Venezuela

• Sabalo-class (Type 209/1300)

Vietnam

• Kilo class
• Yugo class

Yugoslavia

• Hrabri-class submarine
• Osvetnik-class submarine
• Sutjeska-class submarine
• Sava class submarine
• Heroj-class submarine
• Una-class midget submarine