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
- Borei class ballistic missile submarine (Project 955 Borey)
- Builder: Russia
- Displacement: 19,400 tons
- Operator: None, 4 ships building
- Delta class ballistic missile submarine (Project 667BDR Kal'mar / 667BDRM Del'fin)
- Xia class ballistic missile submarine (Project 092)
Guided missile submarines
- Oscar class guided missile submarine (Project 949 Antey)
- Ohio class “Tactical Trident”: Special Forces and Super Strike (SSGN 726)
Nuclear-powered attack submarines
- Astute class attack submarine
- Builder: United Kingdom
- Displacement: 7,400 tons
- Operator: Royal Navy: 1 in service, 1 launched & 4 under construction out of a total of 7 (ordered) in class
- Sierra class attack submarine (Project 945)
- Builder: Soviet Union
- Displacement: 10,400 tons
- Operator: Russian Navy: 3 in service, including one Sierra I and two Sierra II submarines
Diesel-electric attack submarines
- Kilo-class submarine (Project 877 Paltus and Project 636)
Special mission submarines
- Dolphin research submarine (AGSS 555)
See also