DDSA
| Acronym | Definition |
|---|---|
| DDSA | Digital Data Service Adapter |
| DDSA | Digital Distributed Systems Architecture |
| DDSA | Digital Dictionaries of South Asia (University of Chicago database) |
| DDSA | Distributed Denial of Service Attack (internet; also seen as DDOS) |
| DDSA | Defense Dental Standard Application |
| DDSA | Defence Development Sharing Arrangement (Canada) |
| DDSA | Dimension Data South Africa (est. 1983; specialist information technology services) |
| DDSA | Derived-Design Strategic Activities |