| Acronym | Definition |
|---|
| DSO➣Distinguished Service Order (British military decoration for distinguished service in action) |
| DSO➣Dynamic Shared Object |
| DSO➣Days Sales Outstanding |
| DSO➣Defence and Security Organisation (UK) |
| DSO➣Detroit Symphony Orchestra |
| DSO➣Dallas Symphony Orchestra |
| DSO➣Decision Support Objects |
| DSO➣Device Software Optimization |
| DSO➣Defense Sciences Office (DARPA) |
| DSO➣Digital Storage Oscilloscope |
| DSO➣Deathspell Omega (band) |
| DSO➣Designated School Official (US Department of Homeland Security) |
| DSO➣Dzwiekowe Systemy Ostrzegawcze (Polish: Sound Warning System) |
| DSO➣Dienst Stedelijke Ontwikkeling (Dutch: Department of Urban Development) |
| DSO➣Diablo Swing Orchestra (Swedish band) |
| DSO➣Deutsches Symphonie-Orchester (German: German Symphony Orchestra) |
| DSO➣Deutschen Stiftung Organtransplantation (German: German Foundation for Organ Transplantation) |
| DSO➣Dental Support Organization |
| DSO➣Dubai Silicon Oasis (Authority; planned community) |
| DSO➣Data Source Object |
| DSO➣Dynamic Soundstage Organizer |
| DSO➣Decision Support Object |
| DSO➣Dual Small Outline Package |
| DSO➣Direct Shipping Ore (bulk economic minerals) |
| DSO➣Defense Spectrum Organization (US DoD) |
| DSO➣Distribution System Operator (electrical production) |
| DSO➣Democratic Services Officer |
| DSO➣Drug Safety Officer (various companies) |
| DSO➣Deep Sky Object |
| DSO➣Division Spezielle Operationen (gaming clan) |
| DSO➣Deep Sky Object (astronomy) |
| DSO➣Departmental Security Officer (Canada) |
| DSO➣Development Services Office (various locations) |
| DSO➣District Supply Office (various organizations) |
| DSO➣De Standaard Online (Belgian newspaper) |
| DSO➣Disability Service Office (various organizations) |
| DSO➣Domestic Support Obligation (divorce law) |
| DSO➣Daily Sales Outstanding |
| DSO➣Distributed Shared Object |
| DSO➣Defensive Systems Officer (US DoD) |
| DSO➣District Staff Officer |
| DSO➣Detention Service Officer (various locations) |
| DSO➣Delaware Symphony Orchestra |
| DSO➣Domestic Support Operation (US DoD) |
| DSO➣Digital Switch Over |
| DSO➣Deinstitutionalization of Status Offenders |
| DSO➣District Service Office (various locations) |
| DSO➣Distributed System Online (IEEE) |
| DSO➣Drunk Sex Orgy |
| DSO➣Delta Services Organisation (France) |
| DSO➣Data Security Officer |
| DSO➣Dungeon Sea Online (role-playing game) |
| DSO➣Defensive Systems Operator |
| DSO➣Detailed Supplementary Objective |
| DSO➣Defense Science Organization |
| DSO➣Distributed Server Option |
| DSO➣Darkstar Orchestra |
| DSO➣Designated Senior Official |
| DSO➣Defense Subsistence Office |
| DSO➣Delta Special Ops (gaming clan) |
| DSO➣Domestic Special Order |
| DSO➣Defense Spectrum Office |
| DSO➣Debt Setoff (various locations) |
| DSO➣Didier Soenen Organisation (French cycling organization) |
| DSO➣Dekalb Symphony Orchestra (Tucker, Georgia) |
| DSO➣District Security Office (US Navy) |
| DSO➣Disaster Safety Officer |
| DSO➣Dogues Sud Ouest (French: South West Mastiffs) |
| DSO➣DMDC Support Office |
| DSO➣Dear Significant Other |
| DSO➣Director of Site Operations (FEMA) |
| DSO➣Dobbertin Surface Orbiter |
| DSO➣Division of Security Operations (Office of Research Services; US NIH) |
| DSO➣Development System Office |
| DSO➣Detailed Secondary Objective |
| DSO➣Dynamic Sound-Stage Organiser |
| DSO➣Dam Safety Officer (USACE) |
| DSO➣Data Set Optimizer |
| DSO➣Division Security Officer |
| DSO➣Database for Solar Observatories (Naples, Italy) |
| DSO➣Defense Systems Operations (US government) |
| DSO➣Delayed Service Order |
| DSO➣Detailed Science/Supplementary Objective |
| DSO➣Dream Space Organizing (Canada) |
| DSO➣Disulphide Oil |
| DSO➣Discovery System Online |
| DSO➣Discrete Stochastic Optimization |
| DSO➣Dulwich Symphony Orchestra (UK) |
| DSO➣Dover Symphony Orchestra (Dover, DE) |
| DSO➣Distance Spectrum Optimized |
| DSO➣Digital Sampling Oscillator |
| DSO➣Director of Staff Office |
| DSO➣Denora Southern Railroad |
| DSO➣Deputy Supply Officer (Royal Australian Navy) |
| DSO➣Desktop Services Organization |
| DSO➣Dropsonde Systems Operator (USAF Hurricane Hunter aircrew meteorological member) |
| DSO➣DEERS (Defense Enrollment Eligibility Reporting System) Support Office (US DoD) |
| DSO➣Double Socket Outlet (unswitched) |