| RHI | Oneida County Airport, Rhinelander, Wisconsin USA 
| Others |
| RHI | Radio Haiti Inter
| Others |
| RHI | Rainbow House Internation Adoptions
| Others |
| RHI | Range Height Indicator
| Others |
| RHI | Rat Hippocampal Interneuron
| Others |
| RHI | Reactive Hyperemia Index
| Others |
| RHI | Real Hectic Industry
| Others |
| RHI | Really Happy Industry
| Others |
| RHI | Red Hat Inc.
| Others |
| RHI | Red Hat Insights
| Others |
| RHI | Red Hook Initiative
| Others |
| RHI | Refrigeration Heating Inc
| Others |
| RHI | Regional Housing Initiative
| Others |
| RHI | Registered Home Inspector
| Others |
| RHI | Rehabilitation Hospital of Indiana
| Others |
| RHI | Rehabilitation Hospitals of Indiana
| Others |
| RHI | Render Hardware Interface
| Others |
| RHI | Rendering Hardware Interface
| Others |
| RHI | Renewable Heat Incentive
| Others |
| RHI | Reproductive Health Initiative
| Others |
| RHI | Reproductive Health Interchange
| Others |
| RHI | Responsible Hospitality Institute
| Others |
| RHI | Rider Hunt International Group
| Others |
| RHI | Road Hazard Insurance
| Others |
| RHI | Roadside Hazardousness Index
| Others |
| RHI | Robert Half International
| Others |
| RHI | Rockburn Home Inspection
| Others |
| RHI | Roller Hockey International
| Others |
| RHI | Route Health Injection
| Others |
| RHI | Royal Hall of Industries
| Others |
| RHI | Roys Home Inspection
| Others |
| RHI | Rural Housing Improvement, Inc.
| Others |