| Acronym | Definition |
|---|
| RNI | Raw Native Interface |
| RNI | Remote Network Interface |
| RNI | Reference Nutrient Intake |
| RNI | Recommended Nutrient Intake (aka Recommended Nutritional Intake) |
| RNI | Rassemblement National des Indépendants (French: National Rally of Independents, Morocco) |
| RNI | Radio Northsea International |
| RNI | Registrar of Newspapers for India |
| RNI | Raw Native Interface (Sun) |
| RNI | Received/Not Invoiced |
| RNI | Regional Network Interface |
| RNI | Rate of Natural Increase |
| RNI | Research Network, Inc. (Kennesaw, GA) |
| RNI | Rayonnements Non Ionisants (French: Non-Ionizing Radiation) |
| RNI | Reactive Nitrogen Intermediate |
| RNI | Rete Nazionale Interbancaria (Italian: National Interbank Network) |
| RNI | Radionuclide Imaging |
| RNI | Radio New York International (pirate radio station) |
| RNI | Relative Needs Index (study; various locations) |
| RNI | Rural Northern Ireland (UK) |
| RNI | Relative Noncentrality Index |
| RNI | Ricochet Networks, Inc. (Denver, CO) |
| RNI | Remote Network Processor |
| RNI | Resident Navy Inspector |
| RNI | Radio Network Interface |
| RNI | Russian Independent Institute for the Study of Social and National Problems |
| RNI | Repair Network Integration (US DoD) |
| RNI | RichMedia Network Infrastructure (Rumble Australia Pty. Ltd.) |