| Acronym | Definition |
|---|
| NIVR➣National Institute of Veterinary Research (Vietnam) |
| NIVR➣Nederlands Instituut voor Vliegtuigontwikkeling en Ruimtevaart (Dutch: Netherlands Agency for Aerospace Programmes) |
| NIVR➣Network Interactive Voice Response |
| NIVR➣National Institute of Vocational Rehabilitation (est. 1991; Japan) |
| NIVR➣Neuron Interactive Virtual Reality |