| Acronym | Definition |
|---|
| HSSR➣Hydrogeochemical and Stream Sediment Reconnaissance (National Uranium Research Evaluation) |
| HSSR➣High Speed Sequential Retrieval (database analysis) |
| HSSR➣Hrvatski Savez Sportske Rekreacije (Croatian: Croatian Sports Recreation Union) |
| HSSR➣Health Services and Sciences Research Resources (database) |
| HSSR➣Hybrid Slot-Size/Rate |
| HSSR➣Heard, Said, Spelled, Read (literacy) |
| HSSR➣Heavy SEAL Support Craft |