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