| Acronym | Definition |
|---|
| NIV | New International Version (of the Bible) |
| NIV | Non Invasive Ventilation |
| NIV | Nipah Virus (paramyxovirus) |
| NIV | Non-Immigrant Visa |
| NIV | Number of Instance Variables |
| NIV | No Innocent Victim (band) |
| NIV | No Income Verification (loan) |
| NIV | Nueva Izquierda Verde (Spanish: New Green Left) |
| NIV | National Institute for Virology |
| NIV | Net Invoice Value |
| NIV | Netzausgleich Individualverkehr (German: net reconciliation individual traffic) |
| NIV | New Improved Variety |
| NIV | Non-Integral Vibration |
| NIV | Neoplasia Intra-Epitelial Vaginal (Portugese) |
| NIV | National Integrated Voicemail |