HLSA
| Acronym | Definition |
|---|---|
| HLSA | Hispanic Law Student Association |
| HLSA | Harvard Law School Association |
| HLSA | High Level Service Architecture |
| HLSA | Homebased Learning Society of Alberta (Edmonton, Alberta, Canada) |
| HLSA | Hawaii Land Surveyors Association (Honolulu, HI) |
| HLSA | Human Liver-Specific Antigen |