HSDC
| Acronym | Definition |
|---|---|
| HSDC | High Speed Daughter Card |
| HSDC | Hubbard Street Dance Chicago (Illinois) |
| HSDC | Hearing, Speech & Deafness Center (Washington) |
| HSDC | High-Speed Data Communications |
| HSDC | High-Speed Data Card |
| HSDC | High School Design Competition (architecture competition) |
| HSDC | High Speed Digital Chart |
| HSDC | Homeland Security Defense Coalition (professional development and continuing education programs) |