NIES
| Acronym | Definition |
|---|---|
| NIES | National Institute for Environmental Studies |
| NIES | Newly Industrializing Economies |
| NIES | Nanjing Institute of Environmental Sciences (China) |
| NIES | National Industry Extension Service (Australia) |
| NIES | Northern Ireland Electricity Service |
| NIES | Nauru Island Effect Study (Atmospheric Radiation Measurement Climate Research Facility; US Department of Energy) |
| NIES | National Imagery Exploitation System (National Imagery and Mapping Agency) |