| Acronym | Definition |
|---|
| PIEE | Precourt Institute for Energy Efficiency (Precourt Energy Efficiency Center; Stanford University; Stanford, CA) |
| PIEE | Programa Internacional de Estudios de Español (International Program of Spanish Studies, Ronda, Spain) |
| PIEE | Pakistan International Education Exhibition (est. 1993) |
| PIEE | Procurement Integrated Enterprise Environment (US DoD) |
| PIEE | Program of International Educational Exchange (Tokyo, Japan) |
| PIEE | Pulsed Irrigation Enhanced Evacuation (colorectal medicine) |
| PIEE | Proceedings of the Institute of Electronic Engineers |