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 ClassBuilderDisplacement (tonnes)Operator In serviceBuiltUnder constructionComments Arihant class (Project ATV) 7,000 3 4 0 Borei class (Project 955 Borey) 24,000 8 8 2 Total of 12 planned Delta class (Project 667BDR Kal'mar / 667BDRM Del'fin) / 18,200 7 9 0 Including 1 ex-Delta III & 1 ex-Delta IV in special operations roles Type 094A/094 11,000 6 6 2 (SSBN-726) 18,750 14 18 0 24 planned 6 cancelled, 4 converted to SSGN 14,335 4 4 0 15,900 4 4 0

Cruise missile submarines ClassBuilderDisplacement (tonnes)Operator In serviceBuiltUnder constructionComments Ohio class (Tactical Trident) 18,750 4 4 0 converted from SSBN Oscar class (Project 949 Granit/Project 949A Antey) / 19,400 6 14 0 some being modernized, some inactive/reserve, 1 lost at sea Type 093 submarine (Type 093G) 7,000 1 1 0 Only G variant of the Shang-class submarine is capable of launching guided cruise missiles Yasen class 13,800 5 6 3 Also classified as an SSN; Boat 6 on sea trials as of 2025; total of 12 planned

Nuclear-powered attack submarines ClassBuilderDisplacement TonnesOperator In ServiceBuiltUnder ConstructionComments Akula class (Project 971 Shchuka) / 13,800 3 15 0 6 undergoing modernization/otherwise inactive Astute class 7,400 5 6 1 Boat 6 (Agamemnon) commissioned but on sea trials as of September 2026 Barracuda class 5,300 3 4 2 3 in service; 4th delivered in 2026 and working up to full operational status; total of 6 planned Type 091 submarine 4,500 3 5 0 Los Angeles class (SSN-688) 7,000 24 62 0 35 submarines retired Rubis class 2,670 1 6 0 5 retired Seawolf class (SSN-21) 9,300 3 3 0 29 originally planned, 3rd in class built substantially modified for special missions Type 093 8,000 6 6 0 Sierra class (Project 945) / 10,400 2 4 0 2 reserve/undergoing modernization Victor class / 7,250 2 48 0 46 retired Virginia class 7,900-10,200 22 24 9 66 planned

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

Agosta-90B class submarine Builder: / Displacement: 2,050 tons Operators: : 3 in service Hangor-class submarine Builder: / Displacement: ~2,800 tons Operators: : 1 in service, 7 on order (3 undergoing trials/fitting out, 4 under construction)

Builder: , Displacement: 1,800 tons Operators: : 2 building (Dolphin-2; AIP-variant) Builder: Displacement: 1,900 tons Operator: : 3 AIP in-service/in-delivery, 3 AIP ordered

Builder: , Displacement: 1,647 tons Operators: : 3 in service Chinese Submarine 201 Builder: Displacement: 6,628 tons Operator: : 1 in service

Builder: Displacement: 3,426 tons Operator: : 1 in service; 3 more building

Builder: / Displacement: 1,590 tons Operator: : 4 ordered/building : 2 in service : 6 in service, 3 ordered, known as : 2 in service : 2 ordered

Builder: Displacement: 4,200 tons Operators: : 12 in service, last two boats not equipped with AIP in favour of larger battery Type 212 submarine Builders: / Displacement: 1,830/2,500 tons ("A" or "CD" variant) Operators: : 6 in service (A), 2 more ordered (CD) : 4 in service (A), 3 more ordered with option for a fourth (A) – known as the Todaro-class : 4 ordered (CD) Type 214 submarine Builder: Displacement: 1,980 tons Operators: : 4 in service : 8 in service, 1 building/ordered : 2 in service : 1 in service, 1 under trials, 4 building / Builder: Displacement: 1,145 tons Operator: : 2 in service : 2 on a delivery program Type 039A/B/C / Hangor-class Builder: Displacement: 3,600 tons Operator: : 17 in service, 3 building : 4 building, 3 under trials, 1 in service : 1 building

Diesel-electric attack submarines

Builder: / Displacement: 1,725 tons Operators: : 2 in service : 1 in service

Builder: Displacement: 3,050 tons Operator: : 6 in service (Dolphin-1; non-AIP variant) Builder: Displacement: 1,900 tons Operator: : 3 non-AIP in-service (Project 877 Paltus and Project 636) Builder: / Displacement: 3,100 tons Operators: : 8 Kilo, 1 decommissioned, 1 transferred to Myanmar Navy, known as the : 2 Kilo and 10 Improved Kilo in service : 5 original Kilo (877) in service (up to 4 more status unclear), 12? Improved Kilo (636.3) in service (one possibly destroyed in dry dock by missile strike), 4 Improved Kilo building/ordered : 2 Original Kilo and 4 Improved Kilo : 1 Kilo : 3 Kilo : 1 Kilo no longer active; used for dockside training Vietnam People's Navy: 6 Improved Kilo in service : 1 Kilo transferred from Indian Navy (Project 677 Lada) Builder: Displacement: 2,700 tons Operators: : 1st boat decommissioned for scrapping; 2nd & 3rd in service as of 2025; 2 more building/ordered; more planned (AIP propulsion originally considered but, according to shipbuilder, not incorporated) Type 035 submarine Builder: Displacement: 2,100 tons Operator: : 14 in service : 2 in service : 1 in service

Builder: Displacement: 4,000 tons Operator: : 11 in service, 2 as training ships Romeo class (Type 033) Builder: Displacement: 1,810 tons Operators: : 4 in service : 20 in service, 1 has been modified to launch ballistic missiles

Builder: Displacement: 1,653 tons Operator: : 4 in service Type 039 submarine Builder: Displacement: 2,250 tons Operator: : 13 in service

Builder: Displacement: 4,300 tons Operator: : 1 launched, 7 planned ― equipped with Lithium-ion batteries

Builder: Displacement: 2116 tons Operators:: 1 (S-41) inactive (laid up); 2nd boat (S-42) sunk with all hands lost. Type 209 submarine Builder: Displacement: 1,230/1,290/1,586 tons Operators: : 1 inactive (used for dockside training) : 5 in service : 2 in service : 2 in service : 4 in service : 2 in service : 6 in service : 4 in service : 4 in service; 1 (402) lost with all hands in April 2021 : 6 in service : 3 in service : 9 in service : 12 in service : 2 (operational status unclear) Ula class (Type 210) Builder: Displacement: 1,150 tons Operator: : 6 in service Victoria class (SSK 876) Builder: Displacement: 2,400 tons Operator: : 4 in service

Builder: Displacement: 2,800 tons Operator: : 3 in service; 1 retired

Builder: Displacement: 2,600 tons Operator: : 2 in service

Builder: Displacement: 370 tons Operator: : 40 in service

Builder: Displacement: 2,000 tons Operator: : 1 in service

Builder: Displacement: 593 tons Operator: : 1 in service Type 206 submarine Builder: Displacement: 500 tons Operators: : 2 in service Hai Kun-class submarine Builder: Displacement: c. 2500 tons Operators: : 1 trialing, 7 planned

Midget submarines Yugo class Builder: Displacement: 90 up to 110 tons Operator: : unknown; : 1;: unknown (reported in inventory as of 2019) Yono class Builder: Displacement: 130 tons Operator: : <36 in service Ghadir class Builder: Displacement: 115 tons Operator: : 21 in service

Builder: Displacement: 350-400 tons Operator: : 1 in service Cosmos-class Builder: Displacement: 110 tons Operator: : 3 in service

Special mission submarines Belgorod (K-329) Builder: Sevmash Displacement: 24,000/30,000 tonnes submerged Operator: Losharik Builder: Sevmash Displacement: c. 2,000 tonnes submerged Operator: LR5 Deep submersible Builder: Displacement: 21 tons Operator: (leased to Royal Australian Navy) NSRS Deep submergence rescue vehicle Builder: Displacement: 41 tons Operator: (available for NATO) deep sea rescue submersible (DSRV-1) Builder: Displacement: 37 tons Operator: : 1 in service special mission submarine (Project 1083.1) Builder: Displacement: 730 tons Operator: Uniform-class special mission submarine (Project 1910 Kashalot) Builder: / Displacement: 1,580 tons Operator: Sarov (B-90) Builder: Krasnoye Sormovo Shipyard and Sevmash Displacement: c. 4,000 tonnes submerged Operator: Al-Sabehat swimmer delivery vehicle Builder: Operator: VAS 525 mini-submarine Builder: GSE Trieste Operator: : 1+?

Summary

Navy Ballistic-missile submarine Cruise-missile submarine Nuclear-powered attack submarine Diesel-electric attack submarine Midget submarine Main article 6 Current force 6 Current force 2 Current force 7? Current force 4 Current force 4 Current force 6 1 6 46? Current force 4 Current force 1 Current force 2 Current force 8 Current force 4 5 Current force 6 Current force 10 Current force 3 17 Current force 4 Current force 4 unclear Current force 6 (including one being delivered as of 2026) Current force 8 Current force 22 Current force 2 Current force 2 Current force 3 Current force 1? 1? 21? 51? Current force 6 Current force 6 (+7 under construction) 3 Current force 6 Current force 1 Current force 2 Current force 13 11 13 SSNs (of which c. 5 active) & c. 9 nuclear special ops boats c. 19 Current force 4 Current force 3 Current force 20 Current force 2 Current force 5 Current force 4 (+1 trialing) Current force 13 Current force 4 6 Current Force 14 4 49 Current force 2? 1+? Current force 6 Current force

See also

List of submarine operators List of naval ship classes in service List of auxiliary ship classes in service

References