| Acronym | Definition |
|---|
| PDA | Personal Digital Assistant (electronic handheld information device) |
| PDA | Public Display of Affection |
| PDA | Personal Data Assistant |
| PDA | Progressive Democrats of America |
| PDA | Pennsylvania Dental Association |
| PDA | Pregnancy Discrimination Act |
| PDA | Place des Arts (Montreal cultural centre) |
| PDA | Pinoy Dream Academy (TV show) |
| PDA | Potato Dextrose Agar |
| PDA | Project on Defense Alternatives (Cambridge, MA) |
| PDA | Partei Der Arbeit (Suisse Socialist Party) |
| PDA | Pennsylvania Department of Agriculture |
| PDA | Preliminary Damage Assessment (American Red Cross; aka Windshield Survey) |
| PDA | Portable Digital Assistant |
| PDA | Pile Driving Analyzer |
| PDA | Photo-Diode Array |
| PDA | Posterior Descending Artery |
| PDA | Phase Doppler Anemometry |
| PDA | Push-Down Automata (theory of computation) |
| PDA | Persistent Ductus Arteriosus (cardiology) |
| PDA | Private Detective Agency (various locations) |
| PDA | Public Development Authority |
| PDA | Philippine Dental Association |
| PDA | Project Development Agreement |
| PDA | Probabilistic Data Association (algorithm for detecting radar target in clutter) |
| PDA | P-Day |
| PDA | Probabilistic Data Association |
| PDA | Physical Disability Agency |
| PDA | Production Data Acquisition |
| PDA | Power Distribution Assembly (Canadian, Australian and New Zealand Armies) |
| PDA | Progressive Democratic Alliance (British Columbia) |
| PDA | Property Damage Accident |
| PDA | Population & Community Development Association |
| PDA | People's Democratic Alliance (Sierra Leone) |
| PDA | Production Design Associates |
| PDA | Personal Data Access |
| PDA | Personal Database Application |
| PDA | Personal Display of Affection |
| PDA | Pitch Detection Algorithm (digital recording) |
| PDA | Professional Development Alliance |
| PDA | Potash Development Association (York, UK) |
| PDA | Personal Deposit Account |
| PDA | Propane Deasphalting |
| PDA | Photonic Design Automation |
| PDA | Percent Defective Allowable |
| PDA | Premature Descent Alert (FAA TAWS) |
| PDA | Production Data Area |
| PDA | Project on Death in America |
| PDA | Parameter Data Area |
| PDA | Physical Device Address |
| PDA | Pretty Damn Arrogant |
| PDA | Physical Display of Affection |
| PDA | Predetermined Attendance (UK Fire Service) |
| PDA | Private Display of Affection |
| PDA | Personal Delivery Assistant (gaming) |
| PDA | Post-Deflection Acceleration |
| PDA | Post-Delivery Availability |
| PDA | Potential Development Area |
| PDA | Physical Disability Appeal |
| PDA | Preliminary Design Approval |
| PDA | Private Doctors of Australia |
| PDA | Perry Davis Associates |
| PDA | Percentage of Defectives Allowable |
| PDA | Packet Downlink Assignment (GPRS) |
| PDA | Predetermined Arc |
| PDA | Preliminary Design Audit |
| PDA | Phase Doppler Analysis |
| PDA | Preventive Dental Assistant |
| PDA | Program Decision Authority |
| PDA | Planning and Decision Aid |
| PDA | Phased Disassembly Array (Homework-PC game) |
| PDA | Photon Detector Assembly |
| PDA | Pressurized Docking Adapter |
| PDA | Preliminary Design Acceptance |
| PDA | Phillips, DiPisa and Associates |
| PDA | Preliminary Design Assessment |
| PDA | Property Disposal Agent |
| PDA | Private Detectives Association (Massachusetts and New Jersey) |
| PDA | Procurement Defense Agency |
| PDA | Programmable Device Array |
| PDA | Perdiemazing (TDY) system |
| PDA | Packaging and Design Association, Europe |
| PDA | Probability Decision Analysis |
| PDA | Principal Development Activity/Agency |
| PDA | Post-Detection Amplifier |
| PDA | Property Disposal Account |
| PDA | Primary Docking Adapter (International Space Station) |
| PDA | Procedure Departure Authorization |
| PDA | Prioritized Defended Asset |
| PDA | Polish Diabetes Association |
| PDA | Principal Design Activity |
| PDA | Physical Demand Assessment |
| PDA | Period-Doubling Analysis |
| PDA | Participant-Directed Retirement Account |
| PDA | Public Disturbance Agency (gaming) |
| PDA | Portfolio Design Analysis |
| PDA | Pathological Demand Avoidance (Syndrome) |
| PDA | Panic Disorder with Agoraphobia |
| PDA | Professional Development Activity (various organizations) |
| PDA | Proforma Disbursement Account (shipping) |
| PDA | Partito d'Azione (Italian political party) |
| PDA | Product Development Associates (various locations) |
| PDA | Policy Development and Advocacy (various organizations) |
| PDA | Prostate Ductal Adenocarcinoma (rare form of prostate cancer) |
| PDA | Pancreatic Ductal Adenocarcinoma (cancer) |
| PDA | Public Defender Agency (Alaska) |
| PDA | Parenteral Drug Association (now the International Association for Pharmaceutical Science and Technology) |
| PDA | Patent Ductus Arteriosus |
| PDA | Polo Democratico Alternativo (Spanish: Alternative Democratic Pole; Colombia) |
| PDA | Public Disclosure Act (various locations) |
| PDA | Players Development Academy (sports; various locations) |
| PDA | Painting and Decorating Association (Warwickshire, UK) |
| PDA | Payday Advance Loan |
| PDA | Preference Disaggregation Approach (decision theory) |
| PDA | Past Doctor Adventure (Doctor Who novel) |