| Abbreviation | Definition |
|---|---|
| PDC | People Donating to Charity |
| PDCA | Physical Disability Council of Australia |
| Padget's Disease Foundation | |
| Parkinson's Disease Foundation | |
| Parkinson's Disease Foundation, Inc. | |
| Peace Development Fund | |
| PDFG | Project Development Fund Group |
| PDHRE | People's Decade for Human Rights Education |
| PDJ | Penn-Del-Jersey Chapter of NECA |
| PDM | Post Distribution Monitoring |
| PDM | Predictive Maintenance |
| PDSA | Platelet Disorder Support Association |
| PEB | Population- Environment Balance |
| PEBC | Public Education and Business Coalition |
| PECA | Petroleum Equipment Contractors Association |
| PECOSE | PEople's COmmunity SErvices |
| PECOSE | People's Community Services of Metropolitan Detroit |
| PED | Post EYP (European Youth Parliament) Depression |
| PED | Post EYP Depression |
| PEER | Public Employees for Environmental Responsibility |