| Abbreviation | Definition |
|---|---|
| PEM | Professional Event Management |
| PEM | Project Engineering Manager |
| PEMP | Performance Evaluation and Measurement Plan |
| PEN | Poets Essayists And Novelists |
| PEO | Performing Engineering Operations |
| PEO | Personal Entertainment Organizer |
| PEO | Professional Employment Organization |
| PEP | Performance Evaluation Program |
| PEP | Personal Education Partner |
| PEP | Personal Efficiency Program |
| PEP | Positive Enhanced Performance |
| PEP | Professional Employer Panel |
| PEP | Professional Engineer And Pilot |
| PEPE | Pathways to Employment for Professional Engineers |
| PEPI | Physical Education Pupil Instructor |
| PERC | Performance Evaluation Research Center |
| PERM | Permanent |
| PERM | Privatize Eliminate Retain Or Modify |
| PERT | Partner Evaluation and Review Team |
| PERT | Performance Evaluation Review Tracking |