RNIS
| Acronym | Definition |
|---|---|
| RNIS | Réseau Numérique à Intégration de Services (French: ISDN) |
| RNIS | Refugee Nutrition Information System (UN) |
| RNIS | Renault-Nissan Information Services (car alliance) |
| RNIS | Ritu Nanda Insurance Services (India) |
| RNIS | Road Network Inventory System |