| Abbreviation | Definition |
|---|---|
| PIE | People Institutes And Experiments |
| PIE | Persons Institutes Experiments |
| PIE | Physics Is For Everyone |
| PIEAS | Pakistan Institute of Engineering & Advanced Sciences |
| PIGS | Progression In Glaucoma Scholars |
| PIHMS | Pacific International Hotel Management School |
| PII | Pork Industry Institute, Texas Tech University |
| PIL | Program of Instruction for Lawyers |
| PILC | Pondicherry Institute of Linguistics and Culture |
| PILD | Performance Improvement and Leadership Development |
| PILF | Public Interest Law Fund |
| PILM | Picower Institute for Learning and Memory |
| PILOT | Pharmaceutical Industry Leaders Of Tomorrow |
| PILOT | Professional Indian Leaders Of Tomorrow |
| PILOT | Program In Leadership And Organizational Training |
| PILOT | Programs In Leadership And Organizational Training |
| PIM | Pathology Immunology And Microbiology |
| PIMS | Pakistan Institute of Management Sciences |
| PIMS | Pittsburgh Institute Of Mortuary Science |
| PIMS | Program In Medical Sciences |