| Acronym | Definition |
|---|
| DDA | Disability Discrimination Act (1995, UK) |
| DDA | Downtown Development Authority |
| DDA | Direzione Distrettuale Antimafia (Italian; Anti-Mafia District Directorate) |
| DDA | Dream Dance Alliance |
| DDA | Delhi Development Authority |
| DDA | Doha Development Agenda |
| DDA | Débito Direto Autorizado (Portuguese: Authorized Direct Debit; Brazil) |
| DDA | Deputy District Attorney |
| DDA | Dynamic Digital Advertising |
| DDA | Droits des Animaux (French: Animal Rights) |
| DDA | District Development Authority |
| DDA | Digital Directional Antenna |
| DDA | Direct Directional Antenna |
| DDA | Digital Data Acquisition |
| DDA | Data Delivery Acknowledgement |
| DDA | Due Data Availability |
| DDA | Demand Deposit Account |
| DDA | Dual Display Architecture |
| DDA | Digital Detector Array (radiography) |
| DDA | Department for Disarmament Affairs |
| DDA | Déclaration des Droits d'Auteur (French: Declaration of Copyright; Canada) |
| DDA | Domain Defined Attribute |
| DDA | Discover Dominica Authority (tourism) |
| DDA | Delaware Department of Agriculture |
| DDA | Direct Debit Authorization (banking) |
| DDA | Demand Driven Approach (agriculture) |
| DDA | Direction Départementale de l'Agriculture (French: Departmental Directorate of Agriculture) |
| DDA | Detroit Diesel-Allison |
| DDA | Don't do Anything (Map Style for N, Computer Game) |
| DDA | Dutch Direct Auction |
| DDA | Digital Differential Analyzer |
| DDA | Département des Droits Audiovisuels (French: Department of Audiovisual Rights) |
| DDA | Discrete Dipole Approximation |
| DDA | Department of Dramatic Art (University of North Carolina at Chapel Hill) |
| DDA | Data Driven Architecture (computing) |
| DDA | Dog Day Afternoon |
| DDA | Defence Diversification Agency (UK) |
| DDA | Donald Duck Adventures (comics) |
| DDA | Dennis Davidson Associates (est. 1970) |
| DDA | Data Distribution Agreement (contract) |
| DDA | Distributed Data Access |
| DDA | Deutsche Dermatologische Akademie (German: German Academy of Dermatology) |
| DDA | Defensor del Asegurado (Spanish: Insurance Ombudsman; Chile) |
| DDA | Dominique Danjou Automobiles (French automotive repair company) |
| DDA | District Data Analyzer (software) |
| DDA | Direct Deposit Advance (Wells Fargo) |
| DDA | Digital Development Agency |
| DDA | Deputy Director for Administration (CIA) |
| DDA | Death with Dignity Act |
| DDA | Dangerous Drug Act |
| DDA | Demons Dance Alone (Residents album) |
| DDA | Dynamic Drainage Analyser |
| DDA | Data Directed Analysis (mass spectrometry) |
| DDA | Deadlock Detection Algorithm |
| DDA | Designated Disposition Authority (US DoD) |
| DDA | Dramatic Duet Acting |
| DDA | Dividend Disbursing Agent (finance) |
| DDA | Durst Dice America |
| DDA | Detailed Damage Assessment (American Red Cross) |
| DDA | Direct Digital Access |
| DDA | Digital/Digital/Analog (audio CD format, recording/mixing/mastering) |
| DDA | Dumbing-Down of America |
| DDA | Defined Display Area (ITU-T) |
| DDA | Deposit Demand Account |
| DDA | Director Defence Analysis |
| DDA | Direct Deposit Advice |
| DDA | Disabled Drummers Association |
| DDA | Dodecane Dioic Acid |
| DDA | Direct Duty Assignment (US Air Force) |
| DDA | Designated Development Activity (US DoD) |
| DDA | document description architecture |
| DDA | Digital Dynamic Astigmatism (LSD) |
| DDA | Disk Drive Assembly |
| DDA | Derived Decision Altitude (aviation) |
| DDA | Design Development Activity |
| DDA | Data Driven Application |
| DDA | Digital Drive Amplifier (MSR) |
| DDA | Developmental Disabilities Act of 1984 |
| DDA | Denver Developmental Activities (Denver Developmental Materials, Inc.) |
| DDA | Deployment Drive Assembly |
| DDA | Division Design Analysis |
| DDA | Desktop Data Access |
| DDA | Dental Dealers Association |
| DDA | Drowsy Driver Alert (Volvo) |
| DDA | Defence Dental Association (UK) |
| DDA | Daredevils of Aspen (band) |
| DDA | Directorate of Documentation & Attestation (Oman) |
| DDA | Doubly Dynamic Addressing (Tolly/Kebab) |
| DDA | Defense Data Access: Mid Tier Application |
| DDA | Developmental Disabilities Aide |
| DDA | Dynamic Design Ahmad |