What is "vso"

VSO may refer to:

• Voluntary Service Overseas, an international development charity
• 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
• Volvo B10TL Super Olympian, double-decker bus
• V, an aircraft's stall speed in the landing configuration
• Visual Studio Online is a hosted application lifecycle management service from Microsoft