| Abbreviation | Definition |
|---|---|
| HSS | Humanities and Social Sciences |
| HSSU | Harris Stowe State University |
| HST | History |
| HSU | Hardin Simmons University |
| HSU | Helmut Schmidt University |
| HSU | Henderson State University |
| HSU | Hills and Stairs University |
| HSU | Hugs And Smiles University |
| HSU | Humboldt State University |
| HT | Honours Thesis |
| HT | Hubble Telescope |
| HTC | Harvard Theatre Collection, Houghton Library |
| HTC | Hi Tech Centre |
| HTC | High Technology Center |
| HTE | High Throughput Experimentation |
| HTOU | Hainan Tropical Ocean University |
| HTS | Hogere Technische School |
| HTT | High Technology Transition |
| HTU | Hawaiian Telcom University |
| HTU | Ho Technical University |