| Abbreviation | Definition |
|---|---|
| RLSE | Regional Live Services Expert |
| RLSS | Return Link Sub-System |
| RLY | Relay |
| RM | Remote Manageability |
| RMC | Remote Method Call |
| RMC | Ron's Mud Client |
| RMCP | Remote Management Control Protocol |
| RMI | Resources Management Interface |
| RMM | Remote Monitoring and Management |
| RMON | Remote Monitoring |
| RMS | Received Message Store |
| RMS | Remote Management Service |
| RMSA | Remote Mirroring Storage Appliance |
| RMT | Reliable Multicast Transport |
| RMU | Remote Management Unit |
| RMU | Remote Monitor Unit |
| RN | Real Network |
| RNDC | Remote Name Daemon Control |
| RNI | Remote Network Interface |
| RNI | RS3 Network Interface |