| Acronym | Definition |
|---|
| RMSG➣Rocky Mountain Survival Group (now Survival & Self-Reliance Studies Institute) |
| RMSG➣Rocky Mountain State Games (Colorado) |
| RMSG➣Risk Management Steering Group |
| RMSG➣Rocky Mountain Sod Growers (est. 1973) |
| RMSG➣Resource Management Solutions Group (Toronto, ON, Canada) |
| RMSG➣Random Map Script Guide (gaming) |