| Abbreviation | Definition |
|---|---|
| RR | Results Ready |
| RRC | Regional Registration Center |
| RRC | Regional Resource Center |
| RRC | Rehabilitation Research Center |
| RRDC | Research and Rehabilitation Development Center |
| RRDT | Regional Research and Development Team |
| RRF | Raptor Research Foundation |
| RRG | Robotics Research Group (University of Texas at Austin) |
| RRG | Role and Reference Grammar |
| RRI | Regional Research Institute |
| RRI | Resource Renewal Institute |
| RRIWVU | Regional Research Institute, West Virginia University |
| RRL | Road Research Laboratory |
| RRSP | Rising Researcher Support Program |
| RRT | Department of Resource Recreation and Tourism, University of Idaho |
| RRT | Rhetoric Resources at Tech ( Georgia Tech) |
| RRU | Rashtriya Raksha University |
| RRU | Royal Roads University |
| RSA | Resident Students Association |
| RSAI | Regional Science Association International |