| Abbreviation | Definition |
|---|---|
| HELD | History of Expressive Language Delay |
| HELLO | hasslefree Elite languages learning organization |
| HELM | Hierarchical Editing Language for Macromolecules |
| HFLS | Hangzhou Foreign Languages School |
| HFW | Handwriting for Windows |
| HH | Heart is Full |
| HICL | Health Insurance Contract Language |
| HIDDEL | Health Information, Disclosure, Description and Evaluation Language |
| HIL | HashiCorp Interpolation Language |
| HILD | High Intensive Language Development |
| HILT | High Intensity Language Training |
| HILT | Human Intelligence and Language Technologies |
| HKSL | Hong Kong Sign Language |
| HL | Host Language |
| HLA | Health Language Analytics |
| HLAC | Hawai'i Literary Arts Council |
| HLBP | Hall Language Buddy Program |
| HLCD | History and Literature Cataloging Division |
| HLCE | Hebrew Language Comprehensive Exam |
| HLCN | Helsinki Literature and the City Network |