NTIS
| Acronym | Definition |
|---|---|
| NTIS | National Technical Information Service |
| NTIS | National Training Information Service (Australia) |
| NTIS | National Institute of Standards and Technology (US DOC) |
| NTIS | Non-Thyroidal Illness Syndrome (medicine) |
| NTIS | NATO Technical Interoperability Standard |
| NTIS | Night Thermal Imaging System |