| Abbreviation | Definition |
|---|---|
| PIF | Problem Identification Flag |
| PIF | Provisions for Industrial Facilities |
| PIF | Punjab Irregular Force |
| PIG | Professionally Instructed Gunman |
| PIG | Program Implementation Group |
| PIGA | Pendulous Integration Gyroscopic Accelerometer |
| PII | Personally Identifiable Information |
| PII | Pre-Incident Indicators |
| PIJ | Palestinian Islamic Jihad |
| PIKL | Pulsed Impulsive Kill Laser |
| PIL | Played Items List (Exercise Related) |
| PIL | Preferred Items List |
| PILOT | PIloted LOw-speed Test |
| PILT | Person Information Location And Travel |
| PILT | Person, Information, Location, and Travel |
| PIM | Position and Intended Movement |
| PIM | Pretrained Individual Manpower |
| PIM | Pre-trained Individual Manpower |
| PIMP | Paper In My Pocket |
| PIMP | People Inflicting Much Pain |