| Acronym | Definition |
|---|
| RHI | Robert Half International |
| RHI | Rumor Has It |
| RHI | Reactive Hyperaemic Index (cardiology) |
| RHI | Renewable Heat Incentive (UK) |
| RHI | Regional Healthcare, Inc. (Florida) |
| RHI | Registered Home Inspector (Ontario Association of Home Inspectors) |
| RHI | Roller Hockey International |
| RHI | Riverview Homes, Inc. (Pennsylvania) |
| RHI | Résorption de l'Habitat Insalubre (French: Reduction of Unhealthy Housing) |
| RHI | Range Height Indicator |
| RHI | Reaching Hearts International (Seventh Day Adventist Church; Spencerville, MD) |
| RHI | Rigid Hull Inflatable Boat |
| RHI | Research-Related Health Information (privacy rules) |
| RHI | Rhinelander, WI, USA - Rhinelander Oneida County Airport (Airport Code) |
| RHI | Royal Hall of Industries (Australia) |
| RHI | Relativistic Heavy Ion |
| RHI | Rhinecliff-Kingston (Amtrak station code; Rhinecliff-Kingston, NY) |
| RHI | Rider Hunt International (UK) |
| RHI | Route Health Injection |
| RHI | Rutherford Hospital Inc. (Rutherfordton, NC) |
| RHI | Robinsons Homes, Inc (Quezon City, Philippines) |
| RHI | Rotary House International (Houston, Texas) |
| RHI | Rural Housing Institute |
| RHI | Radar Height Indicator |
| RHI | Render Hardware Interface |
| RHI | Risk Hazard Index |
| RHI | routine health information |
| RHI | Relative Happiness Index |
| RHI | Rick Hanson Institute |
| RHI | Renewable Heat Installation (energy management) |