| 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) |