| Abbreviation | Definition |
|---|---|
| PIFE | Printing Industry Financial Executives |
| PIG | Particular Interest Group |
| PIID | Philippine Institute of Interior Design |
| PIOA | Professional Investigators Organization of Arizona |
| PIPFA | Pakistan Institute of Public Finance Accountants |
| PIPFA | Pakistan Institute of Public Finance Accoutants |
| PIPSC | Professional Institute of the Public Service of Canada |
| PISA | Professional Investigators and Security Association |
| PIW | Printing Industries of Wisconsin |
| PJA | Professional Jewelers of America |
| PJD | Penn-Jer-Del Chapter of the ABA Marketing Network |
| PLAN | Professional Lenders Association Network |
| PLAN | Public Land and Natural |
| PLAO | Purdue Latino Alumni Organization |
| PLCA | Pipe Line Contractors Association |
| PLCAO | Professional Lawn Care Association of Ontario |
| PLEA | Pacific Lumber Exporters Association |
| PLKZ | Pier Loti Kazakhstan |
| PLS | Principals Leadership Society |
| PLUC | Pakistan Linux Users Community |