| Acronym | Definition |
|---|
| HSDF➣Human Services Development Fund (Pennsylvania) |
| HSDF➣Homogeneous Synchronous Dataflow |
| HSDF➣High Speed Data Feed (financial data transfer) |
| HSDF➣High-Speed Digital Facsimile |
| HSDF➣High Speed Diesel Fuel (product) |
| HSDF➣Homeland Security Dialogue Forum |