| Abbreviation | Definition |
|---|---|
| PDAI | Persatuan Dokter Akupuntur Indonesia |
| PDAI | Phelps Dodge Australasia, Inc. |
| PDB | Pillsbury Dough Boy |
| PDB | Professional Drivers Bureau |
| PDC | Parts Distributing Company |
| PDC | Peoria Disposal Company |
| PDC | Petroleum Development Corporation |
| PDC | Precision Dynamics Corporation |
| PDC | Pressure Dynamic Consultants |
| PDC | Priority Dispatch Corporation |
| PDC | Professional Darts Corporation |
| PDC | Professional Development Center |
| PDCC | Pacific Data Conversion Corporation |
| PDCC | Penn- Dixie Cement Company |
| PDCC | Penn-Dixie Cement Company |
| PDD | Professional Data Dimensions |
| PDDC | Pakistan Dairy Development Company |
| PDDC | Panasonic Digital Document Company |
| PDDC | Philadelphia Developmental Disabilities Corporation |
| PDDC | Philippine DCS Development Corporation |