| Abbreviation | Definition |
|---|---|
| RGR | Rigger |
| RGS | Retirement Government Specialist |
| RGT | Registered Genetic Technologist |
| RHA | Residence Hall Assistant |
| RHC | Residence Hall Coordinator |
| RHCE | Red Hat Certified Engineer |
| RHE | Reproductive Health Externship |
| RHIA | Registered Health Information Administrator |
| RHIT | Registered Health Information Technician |
| RHOs | Residence Hall Officers |
| RHP | Retirement Housing Professional |
| RHU | Registered Health Underwriter |
| RHW | RochesterHelpWanted.com |
| RIA | Registered Investment Advisor |
| RIC | Regional Instructional Coordinator |
| RIG | Respected Internet Guitarist |
| RIL | Reduced Income Logging |
| RIMG | Reinsurance Intermediary Manager |
| RIO | Radar Intercept Officer |
| RIO | Regional Inspection Officer |