| Acronym | Definition |
|---|
| NAIS➣National Association of Independent Schools |
| NAIS➣National Animal Identification System (United States) |
| NAIS➣Next Generation Active Integrated Optic Subsystems |
| NAIS➣National Association of Investigative Specialists |
| NAIS➣NASA Acquisition Internet Service |
| NAIS➣National Agricultural Insurance Scheme (India) |
| NAIS➣National Atlas Information Service |
| NAIS➣Nothing As It Seems (Pearl Jam song) |
| NAIS➣Norwegian Aeronautical Information System |
| NAIS➣Norwegian Artificial Intelligence Society |
| NAIS➣National Automated Identification System (US Coast Guard) |
| NAIS➣National Association for Information Services (Washington, DC) |
| NAIS➣Navy Attitudinal Information System |
| NAIS➣News Analysts in International Security |