VSO

VSO may refer to:

V_SO, an aircraft's stall speed in the landing configuration
Valdosta Southern Railroad
Vancouver Symphony Orchestra, a Canadian orchestra performing in Vancouver, British Columbia
Variable Speed Oscillator - see Oscillation
Verb–subject–object in Linguistic typology
Vermont Symphony Orchestra, a symphony orchestra based in, and supported in part by, the U.S. state of Vermont
Victoria State Opera, Australian opera company, merged in 1996 with Opera Australia
Vienna State Opera, an opera house – and opera company – with a history dating back to the mid-19th century
Vienna Symphony Orchestra
Violin Shaped Object, a pejorative term for a low-quality violin
Virginia Symphony Orchestra, an orchestra based in Norfolk, Virginia, founded in 1920
Visual Studio Online, an early name for Azure DevOps (previously Visual Studio Team Services), a hosted application lifecycle management service from Microsoft
Voluntary Service Overseas, an international development charity
Volusia Sheriff's Office, law enforcement agency in Florida
Volvo Super Olympian, double-decker bus