Look up DSO in Wiktionary, the free dictionary.

DSO may refer to:

Organisations

• Defence Science Organisation, now known as DSO National Laboratories, Singapore
• Defense Sciences Office, part of the US Defense Advanced Research Projects Agency
• Directorate of Special Operations, a South African law-enforcement agency
• Direct service organisation, a business unit of a United Kingdom local authority
• Groupe DSO, an Australian headquartered business cooperative

Orchestras

• Dallas Symphony Orchestra
• Denver Symphony Orchestra
• Detroit Symphony Orchestra
• Diablo Swing Orchestra
• Dubuque Symphony Orchestra, in Dubuque, Iowa
• Darwin Symphony Orchestra, in Darwin, Northern Territory, Australia
• Deutsches Symphonie-Orchester Berlin, in Berlin, Germany
• Dubrovnik Symphony Orchestra, in Dubrovnik, Croatia
• Dark Star Orchestra, in Chicago, Illinois, United States
• Dunedin Symphony Orchestra, New Zealand

Technology

• Digital sampling oscilloscope, samples measurements and displays or stores them
• Digital storage oscilloscope, which stores and analyses the signal digitally
• Direct sparse odometry, a machine vision algorithm for simultaneous localization and mapping
• Dynamic shared object, in computing
• Drakensang Online, the online computer game

Astronomy

• Dark Sky Observatory, Appalachian State University (ASU) facility
• Deep-sky object, in astronomy

Other uses

• Distinguished Service Order (disambiguation), several decorations
• Dark Star Orchestra, a Grateful Dead cover band formed in Chicago, Illinois
• Diablo Swing Orchestra, a Swedish avant-garde metal band
• Digital switchover
• Dental service organizations
• Days sales outstanding, in accountancy
• Direct shipping ore, iron ore that can be shipped directly to a steel furnace
• Distribution system operators, in energy systems
• Diving safety officer, an administrator of United States university's research diving safety program
• Defensive systems operator, a member of the flight crew responsible for defensive systems
• Dubai Silicon Oasis, a free-trade zone in Dubai
• Dobbertin Surface Orbiter, an amphibious vehicle
• Domestic security officer serving as riot police
• Sondok Airport, IATA airport code

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