| Abbreviation | Definition |
|---|---|
| RRED | Robust random early detection |
| RRELO | Reduced Risk of Equipment Loss Option |
| RREP | Range and Reach Expansion Plan |
| RREP | Rapid Responsive Evidence Partnership |
| RREP | Resonance Raman Excitation Profile |
| RRER | Risk Reduction Enhanced Response |
| RRET | Representative Reach Extrapolation Technique |
| RREU | Rothamsted Radar Entomology Unit |
| RREV | Responsiveness Relationship Experience and Value |
| RRF | Radiation Request Form |
| RRF | Ragged Red Fiber |
| RRF | RailRoad Research Foundation |
| RRF | Rapid Respond Force |
| RRF | Real Return Fund |
| RRF | Recovery and Resilience Facility |
| RRF | Redstone Radiation Flux |
| RRF | Registration Renewal Fee |
| RRF | Relative Response Factor |
| RRF | Remote Radio Frontend |
| RRF | Reordered Row Format |