# 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 | 4 | 2 | |
| Borei class (Project 955 Borey) | Russia | 24,000 | Russian Navy | 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) and 6 Delta IV (1 special ops) |
| 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 | 4 | 15 | 0 | 5 undergoing modernization |
| 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 | 3 | 3 | 3 | 3 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 | 2 | 6 | 0 | 4 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 |
| 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 in service; 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: 5 in service, 1 under trials, 3 ordered, known as Kalvari-class submarine
*** Royal Malaysian Navy: 2 in service
*** Indonesian Navy: 2 ordered
* 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: 1 in service, 1 under trials, 4 building
* 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
*** Royal Thai Navy: 1 building

## Diesel-electric attack submarines

* Agosta class
** Builder: France / Spain
** Displacement: 1,725 tons
** Operators:
*** Pakistan Navy : 2 in service
*** Spanish Navy: 1 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 4 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; 2nd on sea trials; 4 more building/ordered (AIP propulsion originally considered but, according to shipbuilder, not incorporated)
* 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
* Romeo class (Type 033)
** Builder: People's Republic of China
** Displacement: 1,810 tons
** Operators:
*** Egyptian Navy: 4 in service
*** Korean People's Navy: 20 in service, 1 has been modified to launch ballistic missiles
* 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
*** 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)
* 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
* Hai Kun-class submarine
** Builder: Republic of China
** Displacement: c. 2500 tons
** Operators:
*** Republic of China Navy: 1 trialing, 7 planned

## Midget submarines

* Yugo class
** Builder: North Korea
** Displacement: 90 up to 110 tons
** Operator: Korean People's Navy: unknown; Cuban Revolutionary Navy: 1; Vietnam People's Navy: unknown (reported in inventory as of 2019)
* 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)
* 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+?

## 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 | | | | 10 | | 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 | 1? | 1? | | 21? | 51? | Current force |
| Royal Norwegian Navy | | | | 6 | | Current force |
| Pakistan Navy | | | | 5 | 3 | Current force |
| Peruvian Navy | | | | 6 | | 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 (+1 trialing) | | Current force |
| Turkish Navy | | | | 13 | | 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 |