MSSG
| Acronym | Definition |
|---|---|
| MSSG | Message |
| MSSG | MEU Service Support Group (USMC) |
| MSSG | Mississippi State Guard |
| MSSG | MPEG Software Simulation Group |
| MSSG | Microcomputer Support Services Group |
| MSSG | Medical Student Survival Guide (Stanford University) |
| MSSG | Management School St. Gallen (Switzerland) |
| MSSG | Mass Storage Systems Group (National Center for Atmospheric Research) |
| MSSG | Migraine Sufferers Support Group (New Zealand) |
| MSSG | Microsoft Services and Solutions Group |