| Acronym | Definition |
|---|
| RHR➣Ryan Hunter-Reay (racecar driver) |
| RHR➣Royapettah High Road (India) |
| RHR➣Retail Human Resources (various locations) |
| RHR➣Regional Haze Rule (US EPA) |
| RHR➣Rector-Hayden Realtors (Kentucky) |
| RHR➣Resting Heart Rate |
| RHR➣Rabbis for Human Rights (Israel) |
| RHR➣Residual Heat Removal (nuclear power) |
| RHR➣Revue de l'Histoire des Religions (French: Journal of the History of Religions; est. 1880) |
| RHR➣Right Hand Rule (physics) |
| RHR➣Royal Highland Regiment (Black Watch) |
| RHR➣Right Hand Reverse (door opening convention) |
| RHR➣Rate of Heat Release |
| RHR➣Recruitment, Hiring and Retention (various organizations) |
| RHR➣Roller Hockey Reims (French roller hockey club) |
| RHR➣Roughness Height Rating (chemical milling) |
| RHR➣Radio Horizon Range |
| RHR➣Road Hockey Rumble (TV Show) |
| RHR➣Reversed Hazard Rate (mathematics) |
| RHR➣Rear Head-Rests (automotive classified) |
| RHR➣Remote Hit Ratio |