NIEC
| Acronym | Definition |
|---|---|
| NIEC | Nihon Inter Electronics Corporation (Japan) |
| NIEC | Northern Ireland Economic Council (now Economic Research Institute of Northern Ireland; est. 1977; Belfast, Northern Ireland, UK) |
| NIEC | National Institute of Economics (Moscow, Russia) |
| NIEC | Northern Ireland Events Company (UK) |
| NIEC | Northern India Engineering College (Lucknow, India) |
| NIEC | Nextgen Integration and Evaluation Capability (US FAA) |
| NIEC | Nebraska Iowa Electrical Council |
| NIEC | NAVFAC Industrial Engineering Center |