| Abbreviation | Definition |
|---|---|
| RFZ | Ridicule- Free Zone |
| RGG | Reading Group Guide |
| RGL | Reading Grade Level |
| RGT | Registry of Guitar Tutors |
| RHE | Reinventing Higher Education |
| RHEC | Regional Higher Education Center |
| RHEC | Regional Higher Education Centers |
| RHEC | Roanoke Higher Education Center |
| RHEC | Rural Health Education Center |
| RHED | Resourcing Health & Education (Inner South Community Health Service; Victoria, Australia) |
| RHED | Rural Health Education Database |
| RHEF | Rural Health Education Foundation |
| RHIME | Research and Humanities In Medical Education |
| RHP | Random Happening Program |
| RHS | Regional High School |
| RHWCD | Random House Webster's College Dictionary |
| RHZ | Rolling Hills Zoo |
| RI | Retarded Institution |
| RIAGE | Rhode Island Advocates for Gifted Education |
| RIBL | Relational Instance-Based Learning |