| Acronym | Definition |
|---|
| ADP | Adenosine diphosphate |
| ADP | Automatic Data Processing system |
| ADP | Automatic/Automated Data Processing/Processor |
| ADP | American Democracy Project (American Association of State Colleges and Universities) |
| ADP | Adaptive |
| ADP | Automatic Data Processing, Inc. |
| ADP | Andorra Peseta (ISO currency code, Andorra) |
| ADP | Aeroports de Paris |
| ADP | Automated Data Processing (NASA) |
| ADP | Accidental Damage Protection |
| ADP | Alcohol and Drug Program |
| ADP | Actual Deferral Percentage (nondiscrimination test used with SAR-SEP plans) |
| ADP | American Doll Posse (Tori Amos song) |
| ADP | Association of Directory Publishers (est. 1898; Traverse City, MI) |
| ADP | Alpha Delta Pi (sorority) |
| ADP | Acoustic Doppler Profiler |
| ADP | Approved Development Programme (UK) |
| ADP | Alliance for Democracy and Progress (Central African Republic) |
| ADP | Administrative Data Processing |
| ADP | Annual Development Plan |
| ADP | Actual Deferral Percentage Test |
| ADP | Average Daily Participation (education) |
| ADP | Advanced Data Processing |
| ADP | Additional Dealer Profit |
| ADP | Ammonium Dihydrogen Phosphate |
| ADP | Acyclic Dependencies Principle |
| ADP | Action à Dividende Prioritaire |
| ADP | Application Development Platform |
| ADP | Alliance for Digital Progress |
| ADP | Amici Dei Popoli |
| ADP | Anguilla Democratic Party |
| ADP | Acceptance Data Package |
| ADP | AOLserver Dynamic Pages |
| ADP | Advanced Development Program |
| ADP | American Depositary Receipt |
| ADP | Astrophysics Data Program |
| ADP | American Dental Plan |
| ADP | Airport Development Program |
| ADP | Agricultural Development Program |
| ADP | AHERA Designated Person |
| ADP | Acoustic Data Processor |
| ADP | African Democratic Party |
| ADP | Audience Development Plan |
| ADP | Apparatus Dew Point |
| ADP | Auger Depth Profiling |
| ADP | Air Deployment Platform |
| ADP | Air Data Probe |
| ADP | Alternative Discipline Program |
| ADP | Asociación Pro-Agua del Pueblo (Township Pro-Water Association, Guatemala) |
| ADP | Alternative Disposition Plan |
| ADP | Automatic Document Processing |
| ADP | Adoptivus (Latin: Adopted, manuscripts and codices) |
| ADP | Air Defense Plan (military) |
| ADP | Architecture Development Process |
| ADP | Active Distribution Panel |
| ADP | Application Distribution Protocol |
| ADP | Asset Development Project |
| ADP | Acquisition Data Processor |
| ADP | Answerer Detection Pattern |
| ADP | Atmospheric Downstream Plasma Etching |
| ADP | Auxiliary Detection Processor (military radar) |
| ADP | Advanced Deployability Posture (STADEPS) |
| ADP | Aspect Data Processor |
| ADP | Approved Degree Program |
| ADP | Automatic Deletion Procedure |
| ADP | Autorisierter DocuWare Partner |
| ADP | Air Defense Position |
| ADP | Area Denial to Personnel |
| ADP | Association pour le Développement de la Podologie |
| ADP | Advanced Development Plan |
| ADP | Advanced Detection Processor |
| ADP | Alternativa Democrática del Pueblo (Democratic Township Alternative - political movement, Guatemala) |
| ADP | Alianza Progresista Democrática (Spanish: Progressive Democratic Alliance, Equatorial Guinea) |
| ADP | Adaptive Doppler Processing |
| ADP | Advanced Development Phase |
| ADP | Atmospheric Downstream Plasma Eching |
| ADP | Allied Defense Publication |
| ADP | Advanced Development Proposal |
| ADP | Asynchronous Data Push |
| ADP | ATO Dissemination Package |
| ADP | AMRAAM Digital Processor |
| ADP | Angle Deception Protection |
| ADP | Antenna Digital Positioner |
| ADP | Argentine Documentation Project |
| ADP | Attitude Determination and Prediction |
| ADP | Afghan Development Program |