| Acronym | Definition |
|---|
| DCA | Department of Community Affairs |
| DCA | District Court of Appeal |
| DCA | Department of Consumer Affairs |
| DCA | Disney's California Adventure (Disneyland theme park) |
| DCA | Department of Civil Aviation |
| DCA | Digital Communications Analyzer |
| DCA | Department for Constitutional Affairs (UK) |
| DCA | DanChurchAid |
| DCA | Department of Cultural Affairs (various locations) |
| DCA | Dollar Cost Averaging (investment strategy) |
| DCA | Document Content Architecture |
| DCA | Debt Collection Agency |
| DCA | Device Configuration Assistant |
| DCA | Division of Cost Allocation |
| DCA | Defense Communications Agency |
| DCA | Dynamic Channel Allocation |
| DCA | Department of Constitutional Affairs (UK) |
| DCA | Dredging Contractors of America |
| DCA | Directional Coronary Atherectomy |
| DCA | Dynamic Channel Assignment |
| DCA | Detrended Correspondence Analysis |
| DCA | Drum Corps Associates (drum & bugle corps organization) |
| DCA | Direct Chip Attach |
| DCA | Dalmatian Club of America |
| DCA | Digital Communications Associates |
| DCA | Department of Company Affairs (India) |
| DCA | Distribution Contractors Association |
| DCA | Drug Control Authority (Malaysia) |
| DCA | Diamond Council of America |
| DCA | Data Collection Analysis |
| DCA | Director of Civil Aviation |
| DCA | Dynamic Contact Angle |
| DCA | Damage Control Assistant (US Navy) |
| DCA | Director of Consumer Affairs |
| DCA | Debt Counselors of America |
| DCA | Dachshund Club of America |
| DCA | Doug Carson & Associates |
| DCA | dual-capable aircraft (US DoD) |
| DCA | Direct Connect Architecture |
| DCA | Défense Contre Avions (French: Anti Aircraft Defence) |
| DCA | Development Credit Agreement |
| DCA | Doctor of Creative Arts |
| DCA | Dependent Care Assistance (employee benefit) |
| DCA | defensive counterair (US DoD) |
| DCA | Director of Community Activities |
| DCA | Dichloroacetylene (CAS Number 7572-29-4) |
| DCA | Diario de Centro América (Guatemala news paper) |
| DCA | Digital Controlled Amplifier |
| DCA | Deputy Commander for Administration (US Army healthcare facilities) |
| DCA | Decline Curve Analysis |
| DCA | Drilling Contractors Association (Europe) |
| DCA | Derbyshire Caving Association |
| DCA | Dynamic Content Adapter (Cisco) |
| DCA | Defense Cooperation in Armaments |
| DCA | Digital Command Assembly |
| DCA | Distributed Communications Architecture |
| DCA | Distributed Computing Architecture |
| DCA | Dynamic Capacity Allocation |
| DCA | Digital Computer Association |
| DCA | Deoxycorticosterone Acetate (CAS Number 56-47-3) |
| DCA | Deposit Control Additive (gasoline formulations) |
| DCA | Directorate of Cadet Activities (US Military Academy) |
| DCA | Dynamic Code Assignment |
| DCA | Dutch Canadian Association (Ottawa Valley, Canada) |
| DCA | Direct Clustering Algorithm |
| DCA | Dade County Approved (Florida) |
| DCA | Detailed Configuration Accounting |
| DCA | Dynamic Contextual Analysis |
| DCA | Design Change Authorization |
| DCA | Dynamic Clustering Algorithm |
| DCA | Data Communications Associates |
| DCA | Dependent Child Care |
| DCA | Drain-Cooler Approach |
| DCA | Doughnut Corporation of America |
| DCA | Data Communications Associates Limited (UK) |
| DCA | Designated Conservation Area |
| DCA | Diagnostic Connector Assembly (connector) |
| DCA | Delegation of Contracting Authority |
| DCA | Denison Community Association |
| DCA | Dispatch Control Area |
| DCA | Discriminant Component Analysis |
| DCA | Data Compression with Antidictionaries |
| DCA | Document Control Architecture |
| DCA | Defense Cooperation Agreements (US DoD) |
| DCA | Data Command Acquire |
| DCA | Document Control Assistant |
| DCA | Defense Contracting Agency |
| DCA | Directional/Channel Assignment |
| DCA | Drift Correction Angle |
| DCA | Development Cost Avoidance |
| DCA | Design Change Approval |
| DCA | Drill and Ceremonial Advanced (Australian Air Training Corps) |
| DCA | Defense Courier Agency |
| DCA | Digital Channel Allocation (transportation) |
| DCA | Distribution Control Agency (NASA) |
| DCA | Disaster Communication Agreement |
| DCA | District Commissioner's Award |
| DCA | Digital Computing Association |
| DCA | Disaster Control Authority |
| DCA | Washington, DC, USA - Ronald Reagan Washington National Airport (Airport Code) |
| DCA | Di-electric Ceramic Antenna |
| DCA | Data Communication Analyzer |
| DCA | Direct Current Amperage |
| DCA | Direct Cite Authorization |
| DCA | Data Conversion Architect (Universal Conversion Technologies) |
| DCA | Detonation Chamber Assembly |
| DCA | Digaredoo Club of America |
| DCA | Distribution Cost Analysis |
| DCA | Direct Channel Assignment |
| DCA | Dispersed Coverage Area (DoD SATCOM) |
| DCA | Dressage Competition Arena |
| DCA | Design Change and Authorization |
| DCA | Distribution Center Alignment (merchandising) |
| DCA | Drive Cycle Analysis |
| DCA | Dominican Conservation Association |
| DCA | Dutch Committee for Afganistan |
| DCA | Deferred Compensation Arrangement |
| DCA | Division of Community Advocacy (Alaska) |
| DCA | Divide and Conquer Algorithm |
| DCA | Division de Combat Alliée (French gaming clan) |
| DCA | Dual Chamber Adaptor |
| DCA | Design Communication Arts (California) |
| DCA | Division of Cultural Affairs (various locations) |
| DCA | Défense du Citoyen Automobiliste (French: Defense of the Citizen Motorist) |
| DCA | Delta Club d'Annecy (French hang gliding club) |
| DCA | Dartington College of Arts (UK) |
| DCA | Domiciliary Care Agency |
| DCA | Data Capture Application |
| DCA | Dundee Contemporary Arts (UK) |
| DCA | Drug and Cosmetic Act |
| DCA | Département des Conduites Addictives (French: Department of Addictive Behavior) |
| DCA | Data Center Automation |
| DCA | Directorate of Community Activities (various organizations) |
| DCA | Démocratie Châtillonnaise Aujourd'hui (French political association) |