| Abbreviation | Definition |
|---|---|
| HLS | Harvard Law School |
| HLSA | Harvard Law School Association |
| HLSA | Hispanic Law Students Association |
| HLT | Human Language Technology |
| HLU | Hsi Lai University |
| HMD | Hi Mom & Dad |
| HMI | Himalayan Mountaineering Institute |
| HML | Hatsopoulos Microfluids Laboratory |
| HMNH | Harvard Museum of Natural History |
| HMRC | Health Management Research Center (University of Michigan) |
| HMS | Harvard Medical School |
| HMS | Howard Medical Science |
| HMSA | Hmong Minnesota Student Association |
| HMSC | Howard Miller Student Center |
| HMSDC | Harvard Medical School Dubai Center |
| HMSE | Human Movement Sciences and Education courses |
| HMSL | School of Human Movement, Sports, and Leisure |
| HMSLA | Healthcare Management Student Leadership Association |
| HMSM | Hamilton Mill Student Ministry |
| HMSR | Human Services courses |