RMCS
| Acronym | Definition |
|---|---|
| RMCS | Royal Military College of Science |
| RMCS | Rocky Mountain Challenge Series (automobile race; Boise, ID) |
| RMCS | Richmond Multicultural Concerns Society (Richmond, British Columbia, Canada) |
| RMCS | Red Meat Construction Set (comics) |
| RMCS | Radio Model Club Sénonais (French radio controlled car club) |
| RMCS | Radioman, Senior Chief |
| RMCS | Range Monitoring Control System |