| Abbreviation | Definition |
|---|---|
| PSM | Purchasing And Supply Management |
| PSP | People Service Profit |
| PSP | Per Something Pricing |
| PSP | Personal Software Process |
| PSP | Personal Systems Products |
| PSP | Physical Security Professional |
| PSQ | Purpose Survey And Question |
| PSR | Problem Solution Result |
| PSR | Project Safety Review |
| PSS | Peak Season Surcharge |
| PST | Productivity Solutions Training |
| PST | Project Service Team |
| PSTN | Public Switched Telephone Network |
| PSU | Public Sector Undertaking |
| PT | Presentation |
| PT | Production Technology |
| PTA | Personal Time Away |
| PTA | Plenty of Tasks Ahead |
| PTA | Problem Tracking and Administration |
| PTA | Project Task and Awards |