SMSG
| Acronym | Definition |
|---|---|
| SMSG | Sms Gateway |
| SMSG | School Mathematics Study Group (think tank) |
| SMSG | Sales, Marketing and Services Group (Microsoft) |
| SMSG | Schweizerische Multiple Sklerose Gesellschaft (German: Swiss Multiple Sclerosis Society; Switzerland) |
| SMSG | Strategic Material Sourcing Group (US DoD) |
| SMSG | Software Maintenance Study Group (est. 1990; Japan) |
| SMSG | Squamous Metaplasia of Sebaceous Gland (pathology) |