| Abbreviation | Definition |
|---|---|
| PHL | Preliminary Hazards List |
| PHO | Posthostilities Operations |
| PHOTINT | Photo Intelligence |
| PHQ | Personal History Questionnaire |
| PHQ | Platoon Head Quarters |
| PHR | Personal Health Record |
| PHR | Preliminary Hazard Review |
| PHR(s) | personal health record(s) |
| PHS | Packaging, Handling, and Storage |
| PHW | Pentagon Hell Warrior |
| PHW | Potable Hot Water |
| PI | Pilipino Insurrecto |
| PI | Point of Impact |
| PI | Probability of Incapacitation |
| PI | Procedural Item |
| PI | Product Improvement |
| PI | Purposeful Interference |
| PIA | Pain In the A** |
| PIA | Pain In the Ass |
| PIA | Program Integrity Assurance |