| Acronym | Definition |
|---|
| HFRS➣Hemorrhagic Fever With Renal Syndrome |
| HFRS➣Hampshire Fire and Rescue Service (UK) |
| HFRS➣Humberside Fire and Rescue Service (UK) |
| HFRS➣Holy Family Regional School (Rochester, Michigan) |
| HFRS➣High-Float, Rapid-Setting (emulsion) |
| HFRS➣Hertfordshire Fire & Rescue Service (UK) |
| HFRS➣Houston Farm Riding School (UK) |
| HFRS➣Hospital Fears Rating Scale |
| HFRS➣Helicopter Flight Rescue Systems (search and rescue) |
| HFRS➣High Flux Radiography System |
| HFRS➣Hospital Financial Reporting and Support |
| HFRS➣Heated Fuel Return System (engineering) |