| Acronym | Definition |
|---|
| NASIS➣National Soil Information System |
| NASIS➣Native American Student Information System (US Bureau of Indian Affairs) |
| NASIS➣Navy Accession Security Information System |
| NASIS➣National Association for State Information Systems |
| NASIS➣NATO Subject Indicator System |
| NASIS➣NASA Aerospace Safety Information System |