PIES
| Acronym | Definition |
|---|---|
| PIES | Physical, Interlectual, Emotional, Social (psychological development) |
| PIES | Product Information Exchange Standard |
| PIES | Pollution-Prevention Information Exchange System |
| PIES | Project Independence Evaluation System |
| PIES | Pressure Inverted Echo Sounder |
| PIES | Photographic Image Editing System |
| PIES | Preliminary Innovation Evaluation Service |
| PIES | Procurement & Inventory of Equipment System |
| PIES | Packaged Interchangeable Electronic System |
| PIES | Positive Ion Ejection System |