| Acronym | Definition |
|---|
| FSSD | Fox Sports San Diego (San Diego, CA) |
| FSSD | Franklin Special School District (Franklin, TN) |
| FSSD | Fairfield-Suisun Sewer District (Fairfield, CA) |
| FSSD | Fédération Suisse de Speeddown (French: Swiss Speeddown Federation; Switzerland) |
| FSSD | Framework for Strategic Sustainable Development (sustainability consulting method) |
| FSSD | Fire Safety and Shelter Department (Singapore) |
| FSSD | Finance Systems Support & Development (UK) |
| FSSD | Fort Smith School District (Arkansas) |
| FSSD | Foreign Service Selection Date |
| FSSD | Future Shock San Diego (dance collective; California) |
| FSSD | Firing Section Status Display |
| FSSD | Facilities Support and Services Division |