SMSM
| Acronym | Definition |
|---|---|
| SMSM | Synchronized Multi-Spark Module (electronic ignition devices) |
| SMSM | Straight Men who have Sex with Men |
| SMSM | Marist Missionary Sister (religious order) |
| SMSM | Space-Mapping Super Model |
| SMSM | Statutory Minimum Solvency Margin (insurance) |
| SMSM | Southern Maine Scale Modelers (Biddeford, Maine) |