| Abbreviation | Definition |
|---|---|
| PEO | Peace Enforcement Operations |
| PEO | Program Evaluation Office |
| PEO | Program Executive Office |
| PEO | Program Executive Officer |
| PEO-CCS | Program Executive Officer - Command and Control System |
| PEOSTRI | Program Executive Office for Simulation, Training & Instrumentation |
| PEP | Peak Envelope Power |
| PEP | Personnel Exchange Program |
| PEP | Post Event Plan |
| PEP | Power Entry Panel |
| PEP | Predictability Engineering Planning |
| PEP | Production Engineering and Planning |
| PEP | Productivity Enhancement Program |
| PEPA | People, Equipment, POL, and Ammunition |
| PER | Packet Error Rate |
| PER | Perform |
| PER | Personnel |
| PER | Position Error Recovery |
| PER | Premature Engine Removal |
| PER | Progressive Endurance Run |