| Acronym | Definition |
|---|
| SDSD | Satellite Data Services Division |
| SDSD | San Diego School District (California) |
| SDSD | Seafarers with Designated Security Duties (Philippines) |
| SDSD | Senior and Disabled Services Division |
| SDSD | San Diego Sheriff's Department |
| SDSD | Statistically Determined Spatial Drift |
| SDSD | Sabun Ve Deterjan Sanayicileri Dernegi (Turkish union of soaps and detergents) |
| SDSD | Software Development Standards Description |
| SDSD | Soft Decision-Symbol Distribution |
| SDSD | Secure Digital Storage Device |
| SDSD | South Dakota School of the Deaf (Sioux Falls, SD) |