| Acronym | Definition |
|---|
| DSSA | Domain-Specific Software Architecture (software components) |
| DSSA | Duluth, South Shore, & Atlantic Railway (US and Canada) |
| DSSA | Drivers Sound Stage Adjustment (advanced auto audio feature) |
| DSSA | Direction du Service de Santé des Armées (French: Army Health Service Directorate; Benin) |
| DSSA | Data Systems Technician Seaman Apprentice (US Navy Rating) |
| DSSA | Dynamic Scalable Server Architecture |
| DSSA | Division Santé-Social-Arts (French: Health and Social Arts Division; Switzerland) |
| DSSA | Direct Supply Support Activity |
| DSSA | Delaware State Sportsmen's Association |
| DSSA | Divided Socialist States of America |