| Acronym | Definition |
|---|
| FHR | Fetal Heart Rate |
| FHR | First Hour Rating (hot water heater performance) |
| FHR | Firefox Health Report (Mozilla) |
| FHR | Foundation for Human Rights |
| FHR | Führer (German: Leader) |
| FHR | Faster Hit Recovery (Diablo II gaming) |
| FHR | Fachhochschule Regensburg (Regensburg University of Applied Sciences, Germany) |
| FHR | Fellowship Health Resources (various locations; behavioral health organization) |
| FHR | Foundation Hospital Rajana (Pakistan) |
| FHR | Fair Hearing Request (various locations) |
| FHR | Federal Halocarbon Regulations (Canada) |
| FHR | Fixed Hierarchical Routing |
| FHR | Fire Hose Rack |
| FHR | Flight Hotel Reservations (UK) |
| FHR | Failed Host Recovery |
| FHR | Friendship Honor Respect (gaming clan) |
| FHR | Florida House of Representatives |
| FHR | Flint Hills Resources, PL (Kansas) |
| FHR | Freedom House Ranking (watchdog organization ranking) |
| FHR | Farmhouse Rattery (breeding) |
| FHR | FatHead Racing (Dallas, TX) |