| Abbreviation | Definition |
|---|---|
| RFPR | Relative False Positive Rate |
| RG | Reference Group |
| RG | ReGression |
| RG | Regression Graph |
| RG | Renormalization Group |
| RG | Rescher-Gaines logic |
| RGML | RDF Graph Modeling Language |
| RGT | Random Gauge Transformation |
| RH | Radius Height |
| RH | Restricted Hierarchical |
| RH | Riemann Hypothesis |
| RHF | Reduced Hermite Form |
| RHP | Right Half Plane |
| RHR | Relative Hazard Reduction |
| RHS | Rectangular Hollow Section |
| RHS | Right angle Hypotenuse Side |
| RHS | right hand side |
| RI | Rational Integral |
| RIBD | Randomized Incomplete Block Diagram |
| RICAM | Radon Institute for Computational and Applied Mathematics |