| Acronym | Definition |
|---|
| NSIE➣Network Security Information Exchange |
| NSIE➣Non-Singular Isothermal Ellipsoid (astrophysics) |
| NSIE➣National Safety Information Exchange (Port Richey, FL) |
| NSIE➣North Seattle Institute of English (North Seattle Community College; Seattle, WA) |
| NSIE➣National Society of Indian Engineers |
| NSIE➣Naprawa Samochodowych Instalacji Elektrycznych (Polish: Automotive Repair Electrical Systems) |