| Abbreviation | Definition |
|---|---|
| RM | Remove Monte |
| RM | Render Monster |
| RM | Rescue Me |
| RMC | Random Mandatory Candidacy |
| RMD | Robed Masked Dude |
| RME | Red Moon Evil |
| RMF | The Rude, the Mad, and the Funny |
| RMH | Resident Metal Head |
| RMK | Rocky Mountain King |
| RML | Rampant Markup Language |
| RMPS | Rising Mind with Pure Soul |
| RMS | Rageing Mammoth Society |
| RMS | Really Massive Ship |
| RN | Real Nurse |
| RN | Real Nurses |
| RN | Rich Nurse |
| RNA | Random Nerd Area |
| RNBO | Rainbow |
| RNC | Random Nonsense Club |
| RNC | Rationality Never Considered |