SMSR
| Acronym | Definition |
|---|---|
| SMSR | Side-Mode Suppression Ratio (lasers) |
| SMSR | Shaft Mounted Speed Reducer (machinery) |
| SMSR | Sociedad Mexicana de Seguridad Radiológica (Mexican Radiation Safety Society) |
| SMSR | Sierra Madre Search and Rescue |
| SMSR | Single-Mode Suppression Ratio (fiber optics) |
| SMSR | Special Mouse Stocks Resource (medical technology) |