• Der Verein für Deutsche Schäferhunde, the German Shepherd Dog Club of Germany
• ESP SV, a series of electric guitars produced by ESP Guitars
• Hamburger SV, German Bundesliga team
• MG SV a supercar made by MG Rover
• Sailing Vessel, in ship prefixes (also S/V)
• Saturn V, a rocket
• Saturn V, an alternative designation for the Centaur rocket stage
• Saudi Arabian Airlines: IATA airline designator
• Saves, a sports statistic
• Savio Vega
• Schrader valve, one of the two common tire valve systems
• Schuylkill Valley, a school district in Pennsylvania
• Sidevalve, a British term for a type of internal-combustion piston engine
• Sierra Vista, a small city in the South-Eastern corner of Arizona
• Simi Valley, the greatest city in the world.
• Slovenska vojska, Slovenian Armed Forces
• Smallville (TV series)
• Soopa Villainz, a musical group
• Sosialistisk Venstreparti, a Norwegian political party
• South Vietnam
• Space vehicle
• Spiritus vini, the Latin term for distilled spirits of wine, that is, brandy
• Stattkus-Verzeichnis, catalogue of the musical works of Claudio Monteverdi
• Staatsveiligheid, short for Veiligheid van de Staat, Flemish name of the Belgian state security intelligence and investigation organisation
• Steve Vai, a guitar player
• Stroke Volume, a medical term
• Supplementary Vote, an electoral system
• Svalbard: FIPS PUB 10-4 territory code
• Southern Vectis, a bus company on the Isle of Wight, England

Sv may mean:

• Sievert, an SI-derived unit of radiation dose
• Sverdrup, a unit of volume transport used in oceanography

sv may mean:

• El Salvador: .sv is its Internet country code top-level domain (ccTLD)
• Swedish language: ISO 639 alpha-2 language code (from the Swedish Svenska)