DSO

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

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

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 Officer, 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