| Abbreviation | Definition |
|---|---|
| HSCFA | Harvard-Smithsonian Center for Astrophysics |
| HSDM | Harvard School of Dental Medicine |
| HSEAS | Harvard School of Engineering and Applied Sciences (Harvard University; Cambridge, MA) |
| HSF | Heidelberger Sprachinstitut |
| HSF | Hispanic Scholarship Fund |
| HSFI | High Security Forensic Institute |
| HSG | Hydrologic Soil Group |
| HSHE | Hispanic Students for Higher Education |
| HSK | Hanyu Shuiping Kaoshi |
| HSL | Hardware Systems Laboratory |
| HSL | Health Sciences Library |
| HSMT | Health Sciences Management Team |
| HSMT | Humphreys School of Musical Theatre |
| HSOC | Health and SOCieties courses |
| HSPH | Harvard School of Public Health |
| HSPH | School of Public Health |
| HSPU | Herzen State Pedagogical University |
| HSR | High Speed Research |
| HSR | Hill Seminar Room |
| HSR | Holland Sleep Research |