| Abbreviation | Definition |
|---|---|
| HSSK | High Street Starter Kit |
| HSSL | Hughes Software Systems Ltd |
| HSSP | Host Sourced Serial Programming |
| HST | Hippo Site Toolkit |
| HSV | Hyperion Software Voyager |
| HSX | Haskell Source with XML |
| HTA | HyperText Application |
| HTHD | Help The Help Desk |
| HTM | Hyper Text Markup |
| HTM | Hyper-Text Markup |
| HTML5 | HyperText Markup Language Version 5 |
| HTML6 | HyperText Markup Language Version 6 |
| HTML7 | HyperText Markup Language Version 7 |
| HTMO | HCL Traveler for Microsoft Outlook |
| HTP | Hypertext Transfer Protocol |
| HTS | High-Throughput Sequencing |
| HTS | HTML Template Source |
| HTTB | Hot Tower Table Builder |
| HTTML | Hyper-Text Tutorial Markup Language |
| HTTPD | HyperText Transfer Protocol Daemon |