| Abbreviation | Definition |
|---|---|
| PMSE | Polymeric Materials Science and Engineering |
| PMSE | Professional Master's in Software Engineering |
| PMSE | Programme Making and Special Events |
| PMT | Personal Motivating Time |
| PMW | Postmaster's Window |
| PN | Practical Nurse |
| PNCC | Primary Nurse Care Coordinator |
| PNEO | Prospective Nuclear Engineer Officer |
| PNP | Pediatric Nurse Practitioner |
| PNQ | Primary Nurse Questionnaire |
| PO | Parole Officer |
| PO | Pee-Ons |
| PO | Performance Objective |
| PO | Personal Offer |
| PO | Police Officer |
| PO | Presenting Officer |
| PO | Printer Operator |
| PO | Promotion Opportunity |
| PO1 | Petty Officer First Class |
| PO2 | Petty Officer Second Class |