EHSA
| Acronym | Definition |
|---|---|
| EHSA | European Home Systems Association |
| EHSA | Environmental Health Specialist Association (Indonesia) |
| EHSA | European Homeland Security Association |
| EHSA | Enhanced High System Availability |
| EHSA | Extended Hotfix Support Agreement (Microsoft) |
| EHSA | Era of Hope Scholar Award (US DoD Breast Cancer Research Program) |
| EHSA | English High School Alumni Association (Boston, MA) |