List of submarine classes in service

The list of submarine classes in service includes all submarine classes currently in service with navies or other armed forces worldwide. For surface combatants, see the list of naval ship classes in service.

Ballistic missile submarines

Class	Builder	Displacement Tonnes	Operator	In Service	Built	Under Construction	Comments
Arihant class (Project ATV)	India	7,000	Indian Navy	2	2	2
Borei class (Project 955 Borey)	Russia	24,000	Russian Navy^[1]	7	7	3
Delta class (Project 667BDR Kal'mar / 667BDRM Del'fin)	Soviet Union / Russia	18,200	Russian Navy	8	9	0	Including 2 Delta III (1 in special operations role, the other (Ryazan) reclassified as SSN)^[2]^[3]^[4] and 6 Delta IV (1 special ops)^[5]
Jin class (Type 094)	People's Republic of China	11,000	People's Liberation Army Navy	6	6	2
Ohio class (SSBN-726)	United States	18,750	United States Navy	14	18	0	24 planned 6 cancelled, 4 converted to SSGN
Triomphant class	France	14,335	French Navy	4	4	0
Vanguard class	United Kingdom	15,900	Royal Navy	4	4	0
Xia class	People's Republic of China	8,000	People's Liberation Army Navy	1	1	0

Cruise missile submarines

Class	Builder	Displacement Tonnes	Operator	In Service	Built	Under Construction	Comments
Ohio class (Tactical Trident)	United States	18,750	United States Navy	4	4	0	converted from SSBN
Oscar class (Project 949 Granit/Project 949A Antey)	Soviet Union / Russia	19,400	Russian Navy	6	14	0	2 being modernized, 1 inactive/reserve, 4 scrapped, 1 lost at sea
Shang class (Type 093G)	People's Republic of China	7,000	People's Liberation Army Navy	1	1	0	Only G variant of the Shang-class submarine is capable of launching guided cruise missiles
Yasen class	Russia	13,800	Russian Navy	4	5	4

Nuclear-powered attack submarines

Class	Builder	Displacement Tonnes	Operator	In Service	Built	Under Construction	Comments
Akula class (Project 971 Shchuka)	Soviet Union / Russia	13,800	Russian Navy / Indian Navy	4	15	0	5 undergoing modernization, 1 leased to India^[6]^[7]
Astute class	United Kingdom	7,400	Royal Navy	5	5	2	Boat 5 (Anson) commissioned but not fully operational as of August 2022
Barracuda class	France	5,300	French Navy	2	2	4	2 in service; total of 6 planned
Han class (Type 091)	People's Republic of China	4,500	People's Liberation Army Navy	3	5	0
Los Angeles class (SSN-688)	United States	7,000	United States Navy	24	62	0	35 submarines retired
Rubis class	France	2,670	French Navy	3	6	0	3 retired
Seawolf class (SSN-21)	United States	9,300	United States Navy	3	3	0	29 originally planned, 3rd in class built substantially modified for special missions
Shang class (Type 093)	People's Republic of China	8,000	People's Liberation Army Navy	6	6	0
Sierra class (Project 945)	Soviet Union / Russia	10,400	Russian Navy	2	4	0	2 reserve/undergoing modernization
Trafalgar class	United Kingdom	5,208	Royal Navy	1	7	0	6 retired
Victor class	Soviet Union / Russia	7,250	Russian Navy	2	48	0	46 retired
Virginia class	United States	7,900-10,200	United States Navy	22	24	9	66 planned

Non-nuclear attack submarines with air-independent propulsion (AIP)

Agosta-90B class submarine
- Builder: France
- Displacement: 1,725 tons
- Operators:
  - Pakistan Navy : 3 in service
Blekinge class
- Builder: Sweden,
- Displacement: 1,800 tons
- Operators: Swedish Navy: 2 building
Dolphin class (Dolphin-2; AIP-variant)
- Builder: Germany
- Displacement: 1,900 tons
- Operator: Israeli Navy: 3 AIP in-service/sea trials, 3 AIP ordered
Gotland class
- Builder: Sweden,
- Displacement: 1,647 tons
- Operators: Swedish Navy: 3 in service
Qing-class submarine
- Builder: People's Republic of China
- Displacement: 6,628 tons
- Operator: People's Liberation Army Navy: 1 in service
S-80 Plus class
- Builder: Spain
- Displacement: 3,426 tons
- Operator: Spanish Navy: 1 on sea trials; 3 more building
Scorpène class
- Builder: France / Spain
- Displacement: 1,590 tons
- Operator:
  - Brazilian Navy: 4 ordered/building
  - Chilean Navy: 2 in service
  - Indian Navy: 4 in service , 1 under trials, 1 under construction, known as Kalvari-class submarine
  - Royal Malaysian Navy: 2 in service
  - Indonesian Navy: 2 under construction
Sōryū class
- Builder: Japan
- Displacement: 4,200 tons
- Operators: Japan Maritime Self-Defense Force: 12 in service, last two boats not equipped with AIP in favour of larger battery
Type 212 submarine
- Builders: Germany / Italy
- Displacement: 1,830/2,500 tons ("A" or "CD" variant)
- Operators:
  - German Navy: 6 in service (A), 2 more ordered (CD)
  - Marina Militare: 4 in service (A), 3 more ordered with option for a fourth (A) – known as the Todaro-class
  - Royal Norwegian Navy: 4 ordered (CD)
Type 214 submarine
- Builder: Germany
- Displacement: 1,980 tons
- Operators:
  - Hellenic Navy: 4 in service
  - Republic of Korea Navy: 8 in service, 1 building/ordered
  - Portuguese Navy: 2 in service
  - Turkish Navy: 6 ordered
Västergötland class / Archer class
- Builder: Sweden
- Displacement: 1,145 tons
- Operator:
  - Swedish Navy: 2 in service
  - Republic of Singapore Navy: 2 on a delivery program
Yuan class
- Builder: People's Republic of China
- Displacement: 3,600 tons
- Operator:
  - People's Liberation Army Navy: 17 in service, 3 building
  - Pakistan Navy: 4 building, 4 on order

Diesel-electric attack submarines

Agosta class
- Builder: France / Spain
- Displacement: 1,725 tons
- Operators:
  - Pakistan Navy : 2 in service
  - Spanish Navy: 2 in service
Challenger class (ex-Sjöormen class)
- Builder: Sweden
- Displacement: 1,210 tons
- Operator: Republic of Singapore Navy: 2 in service
Collins class
- Builder: Australia
- Displacement: 3,050 tons
- Operator: Royal Australian Navy: 6 in service
Dolphin class (Dolphin-1; non-AIP variant)
- Builder: Germany
- Displacement: 1,900 tons
- Operator: Israeli Navy: 3 non-AIP in-service
Kilo class (Project 877 Paltus and Project 636)
- Builder: Soviet Union / Russia
- Displacement: 3,100 tons
- Operators:
  - Indian Navy: 8 Kilo, 1 decommissioned, 1 transferred to Myanmar Navy, known as the Sindhughosh class
  - People's Liberation Army Navy: 2 Kilo and 10 Improved Kilo in service
  - Russian Navy: 11-12 original Kilo (877) in service, 10 Improved Kilo (636.3) in service, 3 Improved Kilo building/ordered
  - Algerian National Navy: 2 Original Kilo and 2 Improved Kilo
  - Polish Navy: 1 Kilo
  - Islamic Republic of Iran Navy: 3 Kilo
  - Romanian Naval Forces: 1 Kilo no longer active; used for dockside training
  - Vietnam People's Navy: 6 Improved Kilo in service
  - Myanmar Navy: 1 Kilo transferred from Indian Navy
Lada class (Project 677 Lada)
- Builder: Russia
- Displacement: 2,700 tons
- Operators: Russian Navy: 1st boat decommissioned for scrapping;^[8] 2nd on sea trials; 4 more building/ordered (AIP propulsion originally considered but, according to shipbuilder, not incorporated^[9])
Ming class (Type 035)
- Builder: People's Republic of China
- Displacement: 2,100 tons
- Operator:
  - People's Liberation Army Navy: 14 in service
  - Bangladesh Navy: 2 in service
  - Myanmar Navy: 1 in service
Oyashio class
- Builder: Japan
- Displacement: 4,000 tons
- Operator: Japan Maritime Self-Defense Force: 11 in service, 2 as training ships
Sauro class
- Builder: Italy
- Displacement: 1,653 tons
- Operator: Marina Militare: 4 in service
Song class
- Builder: People's Republic of China
- Displacement: 2,250 tons
- Operator: People's Liberation Army Navy: 13 in service
Taigei class
- Builder: Japan
- Displacement: 4,300 tons
- Operator: Japan Maritime Self-Defense Force: 1 launched, 7 planned ― equipped with Lithium-ion batteries
TR-1700 class
- Builder: Germany
- Displacement: 2116 tons
- Operators: Argentine Navy: 1 (S-41) inactive (laid up); 2nd boat (S-42) sunk with all hands lost.
Type 209 submarine
- Builder: Germany
- Displacement: 1,230/1,290/1,586 tons
- Operators:
  - Argentine Navy: 1 inactive (used for dockside training)
  - Brazilian Navy: 5 in service
  - Chilean Navy: 2 in service
  - Colombian National Navy: 2 in service
  - Egyptian Navy: 4 in service
  - Ecuadorian Navy: 2 in service
  - Hellenic Navy: 6 in service
  - Indian Navy: 4 in service
  - Indonesian Navy: 4 in service; 1 (402) lost with all hands in April 2021^[10]
  - Peruvian Navy: 6 in service
  - South African Navy: 3 in service
  - Republic of Korea Navy: 9 in service
  - Turkish Navy: 12 in service
  - Bolivarian Navy of Venezuela: 2 (operational status unclear)^[11]
Ula class (Type 210)
- Builder: Germany
- Displacement: 1,150 tons
- Operator: Royal Norwegian Navy: 6 in service
Victoria class (SSK 876)
- Builder: United Kingdom
- Displacement: 2,400 tons
- Operator: Royal Canadian Navy: 4 in service
Walrus class
- Builder: Netherlands
- Displacement: 2,800 tons
- Operator: Royal Netherlands Navy: 3 in service; 1 retired
Zwaardvis class
- Builder: Netherlands
- Displacement: 2,600 tons
- Operator: Republic of China Navy: 2 in service
Sang-O class
- Builder: North Korea
- Displacement: 370 tons
- Operator: Korean People's Navy: 40 in service
Sinpo class
- Builder: North Korea
- Displacement: 2,000 tons
- Operator: Korean People's Navy: 1 in service
Fateh class
- Builder: Iran
- Displacement: 593 tons
- Operator: Islamic Republic of Iran Navy: 1 in service
Type 206 submarine
- Builder: Germany
- Displacement: 500 tons
- Operators:
  - Colombian National Navy : 2 in service

Midget submarines

Yugo class
- Builder: North Korea
- Displacement: 90 up to 110 tons
- Operator: Korean People's Navy: unknown; Cuban Revolutionary Navy: 1;^[12] Vietnam People's Navy: unknown (reported in inventory as of 2019)^[13]
Yono class
- Builder: North Korea
- Displacement: 130 tons
- Operator: Korean People's Navy: <36 in service
Ghadir class
- Builder: Iran
- Displacement: 115 tons
- Operator: Islamic Republic of Iran Navy: 21 in service
Nahang class
- Builder: Iran
- Displacement: 350-400 tons
- Operator: Islamic Republic of Iran Navy: 1 in service

Special mission submarines

Belgorod (K-329)
- Builder: Sevmash
- Displacement: 24,000/30,000 tonnes submerged
- Operator: Russian Navy
Losharik
- Builder: Sevmash
- Displacement: c. 2,000 tonnes submerged
- Operator: Russian Navy
LR5 Deep submersible
- Builder: United Kingdom
- Displacement: 21 tons
- Operator: Royal Navy (leased to Royal Australian Navy)^[14]
NSRS Deep submergence rescue vehicle
- Builder: United Kingdom
- Displacement: 41 tons
- Operator: Royal Navy (available for NATO)
Mystic-class deep sea rescue submersible (DSRV-1)
- Builder: United States
- Displacement: 37 tons
- Operator: United States Navy: 1 in service
Paltus-class special mission submarine (Project 1083.1)
- Builder: Russia
- Displacement: 730 tons
- Operator: Russian Navy
Uniform-class special mission submarine (Project 1910 Kashalot)
- Builder: Soviet Union / Russia
- Displacement: 1,580 tons
- Operator: Russian Navy
Sarov (B-90)
- Builder: Krasnoye Sormovo Shipyard and Sevmash
- Displacement: c. 4,000 tonnes submerged
- Operator: Russian Navy
Al-Sabehat swimmer delivery vehicle
- Builder: Iran
- Operator: Islamic Republic of Iran Navy
VAS 525 mini-submarine
- Builder: GSE Trieste Italy
- Operator: Bolivarian Navy of Venezuela: 1+?^[15]

Summary

Navy	Ballistic-missile submarine	Cruise-missile submarine	Nuclear-powered attack submarine	Diesel-electric attack submarine	Midget submarine	Main article
Algerian National Navy				6		Current force
Royal Australian Navy				6		Current force
Bangladesh Navy				2		Current force
Brazilian Navy				7?		Current force
Royal Canadian Navy				4		Current force
Chilean Navy				4		Current force
People's Liberation Army Navy	6	1	6	46?		Current force
Colombian National Navy				4		Current force
Cuban Revolutionary Navy					1	Current force
Ecuadorian Navy				2		Current force
Egyptian Navy				8		Current force
French Navy	4		5			Current force
German Navy				6		Current force
Hellenic Navy				11		Current force
Indian Navy	2			16		Current force
Indonesian Navy				4		Current force
Islamic Republic of Iran Navy				4	unclear	Current force
Israeli Navy				5 (6th boat in tests; status unclear)		Current force
Italian Navy				8		Current force
Japan Maritime Self-Defense Force				22		Current force
Royal Malaysian Navy				2		Current force
Myanmar Navy				2		Current force
Royal Netherlands Navy				3		Current force
Korean People's Navy				21?	51?	Current force
Royal Norwegian Navy				6		Current force
Pakistan Navy				5	3	Current force
Peruvian Navy				4		Current force
Polish Navy				1		Current force
Portuguese Navy				2		Current force
Russian Navy	11	9	7 (+c. 8 nuclear special ops)	c. 22		Current force
Republic of Singapore Navy				4		Current force
South African Navy				3		Current force
Republic of Korea Navy				20		Current force
Spanish Navy				2		Current force
Swedish Navy				5		Current force
Republic of China Navy				4		Current force
Turkish Navy				12		Current force
Royal Navy	4		6			Current Force
United States Navy	14	4	49			Current force
Bolivarian Navy of Venezuela				2?	1+?	Current force
Vietnam People's Navy				6		Current force