PIEC
| Acronym | Definition |
|---|---|
| PIEC | Planet Immigration & Education Consultancy (Australia) |
| PIEC | Provisional Independent Electoral Commission (Gambia) |
| PIEC | Predicted Initial Environmental Concentration (ecology) |
| PIEC | Pacific Islands Environment Conference (US EPA) |
| PIEC | Province Interagency Executive Committee (USDA) |
| PIEC | Principal Investigator Executive Committee |
| PIEC | Public Issues Education Center (University of Arkansas Cooperative Extension Service) |