| Abbreviation | Definition |
|---|---|
| RMP | Red Emperor Resources NL |
| RMRO | Ram Resources Limited |
| RMROA | RMR |
| RMS | Ramelius Resources, LTD. |
| RMT | RMA Energy Ltd |
| RMX | Red Mountain Mining Limited |
| RNC | Real Estate Corporation (de-listed) |
| RNC | Real Estate Corporation (de-listed) |
| RNC | Run Corp Ltd |
| RND | Rand Mining NL |
| RNG | Range River Gold Ltd |
| RNI | Resource |
| RNS | Renaissance Minerals Limited |
| RNU | Renaissance Uranium Limited |
| RNY | Reckson New York Property Trust |
| ROB | ROB |
| ROBO | Robe Australia Limited |
| ROC | Roc Oil Company Ltd |
| ROG | Red Sky Energy Ltd |
| ROK | Rock Building Society Ltd (The) |