DSO

DSO may refer to:

Organisations

• Defence Science Organisation, now known as DSO National Laboratories, Singapore
• Defense Sciences Office, one of the seven program offices 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
• Dark Star Orchestra
• Detroit Symphony Orchestra
• Deutsches Symphonie-Orchester Berlin
• Diablo Swing Orchestra

Technology

• Digital Sampling Oscilloscope, samples measurements and displays or stores them
• Digital storage oscilloscope, which stores and analyses the signal digitally
• Dynamic Shared Object, in computing

Other uses

• Days sales outstanding, in accountancy
• Deep-sky object, in astronomy
• Defensive Systems Operator, a member of the flight crew responsible for defensive systems.
• Designated School officer
• Detention Service Officer, a civilian position held at a correctional facility.
• Direct Shipping Ore, iron ore that can be shipped directly to a steel furnace
• Distinguished Service Order (disambiguation), several decorations
• Distribution System Operators, in energy systems
• Diving safety officer, an administrator of United States university's research diving safety program
• Dubai Silicon Oasis, a free trade zone in UAE