| Abbreviation | Definition |
|---|---|
| PSCC | Power Systems Computation Conference |
| PSCE | Power Systems Conference and Exposition |
| PSEO | Topical Meeting on PicoSecond Electronics and Opto-electronics |
| PSMC | Pacific Southwest Mennonite Conference |
| PSSC | Pacific Structural Steel Conference |
| PSSC | Partners for Student Success Conference |
| PSTN | Public Switched Telephone Network |
| PSWC | Pacific South West Conference |
| PTCM | Parent Teacher Conference Maker |
| PTHC | Philadelphia Trans Health Conference |
| PTIC | Pacific Tourism Insights Conference |
| PTS | Parallel Technical Sessions |
| PTSC | Parent Teacher Student Conference |
| PTWC | Pacific Tsunami Warning Centre |
| PUCC | Pediatric Urgent Care Conference |
| PUHC | Philippine Underwater Hockey Confederation |
| PURC | Psychology Undergraduate Research Conference |
| PVAC | Potomac Valley Athletic Conference |
| PVBC | Pine Valley Bible Conference |
| PVG | Symposium on Parallel and Large-Data Visualization and Graphics |