| Acronym | Definition |
|---|
| RRN➣Red River of the North (North American River) |
| RRN➣Relative Record Number |
| RRN➣Request Rejection Notification |
| RRN➣Run River North (band) |
| RRN➣Réseau Routier National (French: National Highway System; Canada and France) |
| RRN➣Rural Reconstruction Nepal |
| RRN➣Rapid Response Network (internet) |
| RRN➣Reciprocal Research Network (Canada) |
| RRN➣Report Reference Number |
| RRN➣Recovering Racists Network |
| RRN➣Regional Research Network |
| RRN➣Reconciliation Resource Network |
| RRN➣Retrieval Reference Number |
| RRN➣Record Row Number |
| RRN➣Restructuración de Redes Neuronales (Spanish: Restructuring of Neural Networks) |
| RRN➣Routing Recording Number (telephony) |
| RRN➣Repetitive Request Number |