| Abbreviation | Definition |
|---|---|
| RHR | Rental History Reports |
| RHR | residence hotels and resorts |
| RHR | Residual Heat Removal |
| RHR | Right hand Rules |
| RHR | Ronald Hastings Rackham |
| RHR | Ryan Hodgson Rigsbee |
| RHRD | Red Hot Russian Daddis |
| RHRD | Reduce High Risk Drinking |
| RHRD | Regional Historical Resource Depositories |
| RHRD | Regional Historical Resource Depository |
| RHRD | Roasted Hazelnut Room Divider |
| RHRN | Right Here Right Now |
| RHRP | Random House Reading Program |
| RHRP | Resilience and High Risk Populations |
| RHRP | Rusyn Heritage Radio Program |
| RHRS | Residual Heat Removal System |
| RHRS | Right Hand Reiman Sum |
| RHRS | Rockfall Hazard Rating System |
| RHRT | Right Help Right Time |
| RHS | Racing Head Service |