| Acronym | Definition |
|---|
| NEMS | National Energy Modeling System (DOE, EIA) |
| NEMS | Nano/Micro Engineered and Molecular Systems (IEEE International Conference) |
| NEMS | Non-Emergency Medical Services |
| NEMS | Nano Electro-Mechanical System (MEMS, nanoscience, nanoengineering) |
| NEMS | North East Motor Salvage (UK) |
| NEMS | NASA Equipment Management System |
| NEMS | National Emergency Management System |
| NEMS | Nimbus-E Microwave Spectrometer |
| NEMS | National Education Management System |
| NEMS | Network Element Management System (Sprint) |
| NEMS | Network Element Management Server |
| NEMS | Network for Environmental Management Studies (fellowship program) |
| NEMS | Noise Exposure Management System (Occupational Health and Safety management) |
| NEMS | Nutrition Environments Measures Survey (Emory University) |