RMSM
| Acronym | Definition |
|---|---|
| RMSM | Royal Military School of Music (UK) |
| RMSM | Rocky Mountain Steel Mills (Pueblo, CO) |
| RMSM | Revised Minimum Standard Model (World Bank) |
| RMSM | Required Minimum Solvency Margin |
| RMSM | Royal Marine School of Music (Portsmouth, UK) |
| RMSM | Rocky Mountain Street Machines (car club) |