DDSD
| Acronym | Definition |
|---|---|
| DDSD | Developmental Disabilities Services Division |
| DDSD | Delta Diablo Sanitation District (Antioch, CA) |
| DDSD | David Douglas School District (Portland, Oregon) |
| DDSD | Delay Dial Start Dial |
| DDSD | Daily Dry Soil Dose (crops) |
| DDSD | Detroit Day School for the Deaf (Detroit, MI) |
| DDSD | Delta Dental of South Dakota (est. 1963; Pierre, SD) |