| Acronym | Definition |
|---|
| RRL | Regional Research Laboratory (India) |
| RRL | Regional Rail Link (Australia) |
| RRL | Resource Requirements Language |
| RRL | Radio Research Laboratory |
| RRL | Recommended Repair Level |
| RRL | Reliance Retail Limited (Reliance Industries Limited) |
| RRL | Rocket Racing League |
| RRL | Reliance Retail Ltd. (various locations) |
| RRL | Rapid Research Letters (publication) |
| RRL | Regional Reference Laboratory (various organizations) |
| RRL | Ready Relevant Learning (US Navy) |
| RRL | Remote Reference Layer |
| RRL | Rapid Response Laboratory (various locations) |
| RRL | Radio Réalisée par Logiciel (French) |
| RRL | Review of Related Literature |
| RRL | Runway Remaining Lights |
| RRL | Retail Ready Line (automated packing system; Ishida Europe; Netherlands) |
| RRL | Radio Relay Link |
| RRL | Resource Requirements List |
| RRL | Reciprocating Rod Lift (oil industry) |
| RRL | Rhino Resort Ltd |
| RRL | Road Runners Lyon (French roller hockey club) |
| RRL | Rayleigh Resolution Limit |
| RRL | Relay Rack Location (telecommunications) |
| RRL | Rock and Roll Library (Boston, MA) |
| RRL | Real Long Term Rate Differential |
| RRL | Radiological Research Laboratory |