- ADO stands for ActiveX Data Object (Microsoft)
- ADO stands for Azure Devops (Microsoft)
- ADO stands for Anti-Doping Organisation (various locations)
- ADO stands for Asian Development Outlook
- ADO stands for Adenosine
- ADO stands for Accrued Day Off (Australia)
- ADO stands for Active Directory Object (computing)
- ADO stands for Arts Development Officer (UK)
- ADO stands for Active Data Object
- ADO stands for Australian Defence Organisation
- ADO stands for Atelier des Ondes (French: Workshop on Waves)
- ADO stands for American Darts Organization
- ADO stands for Adult Dyslexia Organisation
- ADO stands for Automotive Diesel Oil (refining industry)
- ADO stands for Army Digitization Office (US Army)
- ADO stands for Alles Door Oefening (soccer club)
- ADO stands for Ancestral Domains Office (Philippines)
- ADO stands for Appeal Deciding Officer
- ADO stands for Ampex Digital Optics (digital effects system by Ampex)
- ADO stands for Army Direct Ordering
- ADO stands for Agriculture Development Officer (India)
- ADO stands for Additional Day Off
- ADO stands for Auxiliary Disconnect Outlet
- ADO stands for Air Defense Operations
- ADO stands for Average Dipole Orientation
- ADO stands for Aerodrome Office
- ADO stands for Accumulated Day Off
- ADO stands for Advanced Development Objective(s)
- ADO stands for Associacao Desportiva Ovarense (soccer club)
- ADO stands for Associate Director of Operations
- ADO stands for Authorized Day Off
- ADO stands for Administrative Duty Officer
- ADO stands for Accelerator Device Object
- ADO stands for Abstract Design Object
- ADO stands for Assistant Duty Officer
- ADO stands for Airport District Offices (FAA)
- ADO stands for Adaptive Solutions, Inc. (stock symbol)
- ADO stands for Aegis Depot Operations
- ADO stands for Activity Distribution Office
- ADO stands for Associated Disbursing Office
- ADO stands for Automated Delivery Order
- ADO stands for American Dancesport Organization
- ADO stands for Army Development Office/Officer
- ADO stands for Acquisition Development Office
- ADO stands for Assistant Desk Officer (NYPD)
- ADO stands for Alaska Disaster Office (Anchorage, AK)
- ADO stands for Address Only Mode Transfer (VME)
- ADO stands for Air Hokkaido International (airline)
- ADO stands for Assistant Director of Operation
- ADO stands for Axiodistoocclusal
- ADO stands for Advanced Oxide
ADO