| Acronym | Definition |
|---|
| HSAR➣Homeland Security Acquisition Regulation |
| HSAR➣High Sierra Animal Rescue (Portola, CA) |
| HSAR➣High Speed Access Report (Information Gatekeepers, Inc.) |
| HSAR➣Hull Seaside Animal Rescue, Inc. (Hull, MA) |
| HSAR➣Hope Search and Rescue |
| HSAR➣High-Speed Auto-Reclosing |