| Term | Full Form | Category |
|---|---|---|
| SDDF | Sample Design Data File | Others |
| SDDF | Sample design data files | Others |
| SDDF | San Diego Deaf Festival | Others |
| SDDF | Selby District Disability Forum | Others |
| SDDF | Skin and Dental Dysfunction Foundation | Others |
| SDDF | So Delicious Dairy Free | Others |
| SDDF | South Dakota Dental Foundation | Others |
| SDDF | Spatial Data Discovery Facility | Others |
| SDDF | State of Development Data Funding | Others |