NIVS
| Acronym | Definition |
|---|---|
| NIVS | National Influenza Vaccine Summit (est. 2000; annual conference; American Medical Association; US CDC) |
| NIVS | Noninvasive Ventilatory Support |
| NIVS | Non-Invasive Vaccination Onto the Skin |
| NIVS | Nazarenes in Voluntary Service |
| NIVS | Norfolk Independent Visitors Scheme (Norfolk Children's Services; UK) |