FSSG
| Acronym | Definition |
|---|---|
| FSSG | Force Service Support Group (USMC) |
| FSSG | Fire Suppression Systems Group (Pawtucket, RI) |
| FSSG | Fleet Service Support Group |
| FSSG | Forward Service Support Group |
| FSSG | Family Soldier Support Group |
| FSSG | Focal Segmental Sclerosing Glomerulopathy |
| FSSG | Fire Selector System - Glock |