| Acronym | Definition |
|---|
| DCO➣Development Consent Order (UK) |
| DCO➣Distillers Corn Oil (feed) |
| DCO➣Division of County Operations (various locations) |
| DCO➣Direct Capture of Objectives |
| DCO➣Data Control |
| DCO➣Data Change Object |
| DCO➣Defense Connect Online |
| DCO➣Data Clock Output |
| DCO➣Dual Core Optimizer |
| DCO➣Developmental Center of the Ozarks (Springfield, MO) |
| DCO➣Defensive Cyber Operations (US DoD) |
| DCO➣District Coordination Officer (Pakistan) |
| DCO➣Defense Coordinating Officer (US DoD) |
| DCO➣Demande Chimique En Oxygène (French) |
| DCO➣Director of Campus Operations (various organizations) |
| DCO➣Data Center Outsourcing |
| DCO➣Digitally Controlled Oscillator |
| DCO➣Defense Connect Online (US DoD Defense Information Systems Agency) |
| DCO➣Designated Contracting Officer (US DOE) |
| DCO➣Defence Community Organisation (Australia) |
| DCO➣District Coordination Office (Israeli-Palestinian Oslo Agreement) |
| DCO➣Deputy Commanding Officer |
| DCO➣Derivatives Clearing Organization (US Commodity Futures Trading Commission) |
| DCO➣Doping Control Officer (athletic organizations) |
| DCO➣Detailed Control Objective |
| DCO➣Developer's Certificate of Origin (Linux) |
| DCO➣Detention Custody Officer (various locations) |
| DCO➣District Commodore |
| DCO➣Data Collection Organization |
| DCO➣Digital Central Office |
| DCO➣Data Center Operations |
| DCO➣Document Change Order |
| DCO➣Director of Christian Outreach (Concordia University; Minnesota) |
| DCO➣Damage Control Officer |
| DCO➣Document Control Officer |
| DCO➣Direct Commission Officer |
| DCO➣Duty Carried Out (Royal Air Force; UK) |
| DCO➣Dental Care Organization |
| DCO➣Direct Contact Overlay (picture framing) |
| DCO➣Dyschondrosteosis |
| DCO➣Delayed Compliance Order (EPA) |
| DCO➣Dial Central Office |
| DCO➣Deputy Commissioner for Operations |
| DCO➣Duke of Connaught's Own (Canadian regiment nickname) |
| DCO➣Dive Center Organisation (software) |
| DCO➣Docket Control Order (sets the trial schedule) |
| DCO➣Domino Collaboration Objects (Lotus Notes/Domino COM interface) |
| DCO➣Drive Configuration Overlay (hard disks) |
| DCO➣Direct Chemical Oxidation |
| DCO➣Designated Complaints Officer (UK) |
| DCO➣Dues Check Off (union working dues deducted from employees checks) |
| DCO➣Data Conversion Operator |
| DCO➣Distal Clavicular Osteolysis (osteology) |
| DCO➣Detailed Checkout (NASA) |
| DCO➣Decanted Oil |
| DCO➣Distributed Cooperative Object |
| DCO➣Debark Control Officer |
| DCO➣Disaster Control Officer |
| DCO➣District Curriculum Office (education) |
| DCO➣Detainee Custody Officer (UK) |
| DCO➣Diluted Crude Oil |
| DCO➣Database Configuration Output |
| DCO➣Downtime Due to Corrective Actions |
| DCO➣Développement et Conception de l'Ouest (French: Design and Development of the West) |
| DCO➣Doctrine Coordination Office |
| DCO➣Director Controller |
| DCO➣Document Change Off-Line |
| DCO➣Dorking Chamber Orchestra (est. 1988; Dorking, England, UK) |
| DCO➣District, Colonial and Overseas (Barclay's Bank) |
| DCO➣Delivery Control Officer (US DoD) |
| DCO➣Director Combat Operations (USAF) |
| DCO➣Delmar Community Orchestra (Delmar, NY) |
| DCO➣District Credit Officer (job title) |
| DCO➣Decorative Concrete Overlay |