| Abbreviation | Definition |
|---|---|
| RNLB | Reserva Natural Laguna Blanca |
| RNLD | Resource Network for Linguistic Diversity |
| RNLM | Ray Nkonyeni Local Municipality |
| RNLM | Recursive Non Local Means |
| RNLM | Rookwood Necropolis Land Manager |
| RNLOC | Reach New Levels Online Community |
| RNLT | Report Not Later Than |
| RNLT | Robots Need Love Too |
| RNLT | Royal Navy Liaison Team |
| RNLTD | Report No Later Than Date |
| RNLTD | Report Not Later Than Date |
| RNLTD | Return No Later Than Date |
| RNLTD | Roport No Later Than Date |
| RNM | Range in Nautical Miles |
| RNM | Registre National des Marques |
| RNM | Remote Neural Monitoring |
| RNM | Road Network Modeler |
| RNM | Robert Novy Marx |
| RNN | Random Neural Network |
| RNN | Random Nigga Noise |