SDDA
| Acronym | Definition |
|---|---|
| SDDA | South Dakota Department of Agriculture |
| SDDA | Staunton Downtown Development Association (Staunton, VA) |
| SDDA | Seaside Downtown Development Association (Seaside, OR) |
| SDDA | South Dakota Dental Association |
| SDDA | San Diego District Attorney (California) |
| SDDA | Salala District Development Association (Liberia) |