NIEP
| Acronym | Definition |
|---|---|
| NIEP | National Institute for Economic Policy (South Africa) |
| NIEP | National Institute for Earth Physics (Romania) |
| NIEP | Nuclear Industry Evaluation Program |
| NIEP | Native Instruments Elektrik Piano |
| NIEP | National Institute for Educational Planning (Newport, CA) |
| NIEP | Network of Indian Environment Professionals (India) |
| NIEP | Natural and Induced Environments Panel |