| Acronym | Definition |
|---|
| HARS➣Hamilton Anxiety Rating Scale (psychology) |
| HARS➣Human Assisted Robots |
| HARS➣Historic Area Remediation Site |
| HARS➣HIV/AIDS Reporting System |
| HARS➣Housing and Residential Services (various organizations) |
| HARS➣Historical Aircraft Restoration Society |
| HARS➣Highway Advisory Radio System (public service announcements) |
| HARS➣Heavy Attack Reconnaissance Squadron (US Army) |
| HARS➣Hereford Amateur Radio Society (UK) |
| HARS➣High Altitude Route System |
| HARS➣Heading Attitude Reference Set |
| HARS➣Heading & Altitude Reference System |
| HARS➣Happy As Raw Sewage (punk magazine) |