| Acronym | Definition |
|---|
| DDA | Disability Discrimination Act (1995, UK) |
| DDA | Downtown Development Authority |
| DDA | Doha Development Agenda |
| DDA | Delhi Development Authority |
| DDA | Department for Disarmament Affairs |
| DDA | Demand Deposit Account |
| DDA | Domain Defined Attribute |
| DDA | Deputy District Attorney |
| DDA | Delaware Department of Agriculture |
| DDA | Dutch Direct Auction |
| DDA | Digital Differential Analyzer |
| DDA | Discrete Dipole Approximation |
| DDA | Defence Diversification Agency (UK) |
| DDA | Direction Départementale de l'Agriculture |
| DDA | Don't do Anything (Map Style for N, Computer Game) |
| DDA | Detroit Diesel-Allison |
| DDA | Dog Day Afternoon |
| DDA | Distributed Data Access |
| DDA | Digital Development Agency |
| DDA | Demons Dance Alone (Residents album) |
| DDA | Durst Dice America |
| DDA | Deputy Director for Administration (CIA) |
| DDA | Dynamic Drainage Analyser |
| DDA | Dangerous Drug Act |
| DDA | Dividend Disbursing Agent (finance) |
| DDA | Death with Dignity Act |
| DDA | Data Directed Analysis (mass spectrometry) |
| DDA | Direct Deposit Advance (Wells Fargo) |
| DDA | Deadlock Detection Algorithm |
| DDA | Designated Disposition Authority (US DoD) |
| DDA | Direct Digital Access |
| DDA | Detailed Damage Assessment (American Red Cross) |
| DDA | Dumbing-Down of America |
| DDA | Digital/Digital/Analog (audio CD format, recording/mixing/mastering) |
| DDA | Defined Display Area (ITU-T) |
| DDA | Deposit Demand Account |
| DDA | designated development activity (US DoD) |
| DDA | Direct Deposit Advice |
| DDA | Director Defence Analysis |
| DDA | Disk Drive Assembly |
| DDA | Data Driven Application |
| DDA | Direct Duty Assignment (US Air Force) |
| DDA | Disabled Drummers Association |
| DDA | Dodecane Dioic Acid |
| DDA | Desktop Data Access |
| DDA | Digital Dynamic Astigmatism (LSD) |
| DDA | document description architecture |
| DDA | Derived Decision Altitude (aviation) |
| DDA | Design Development Activity |
| DDA | Denver Developmental Activities (Denver Developmental Materials, Inc.) |
| DDA | Deployment Drive Assembly |
| DDA | Digital Drive Amplifier (MSR) |
| DDA | Developmental Disabilities Act of 1984 |
| DDA | Division Design Analysis |
| DDA | Drowsy Driver Alert (Volvo) |
| DDA | Dental Dealers Association |
| DDA | Defence Dental Association (UK) |
| DDA | Doubly Dynamic Addressing (Tolly/Kebab) |
| DDA | Directorate of Documentation & Attestation (Oman) |
| DDA | Daredevils of Aspen (band) |
| DDA | Defense Data Access: Mid Tier Application |
| DDA | Developmental Disabilities Aide |
| DDA | Dynamic Design Ahmad |