| Abbreviation | Definition |
|---|---|
| PPS | Pulses Per Second |
| PPSH-41 | Pistolet-Pulemyot Shpagina, model 1941 |
| PPSS | Post Production Software Support |
| PPT | Pickett, Pettigrew, and Trimble |
| PPT | Production Prove-out Test |
| PPT | Program Performance Test |
| PPTO | Petroleum Pipeline and Terminal Operating |
| PPU | Prime Power Unit |
| PQ | Physically Qualified |
| PQA | Preliminary Quantitative Analysis |
| PQA | Program Quality Assurance |
| PQAS | Petroleum Quality Analysis System |
| PQC | Post-Quantum Cryptography |
| PQC | Project Quality Control |
| PQD | Power Quality Display |
| PQG | Performance Qualification Group |
| PQG | Program Quality Group |
| PQI | Performance and Quality Improvement |
| PQR | Physical Qualification Review |
| PQR | Physical Quality Relationship |