| Acronym | Definition |
|---|
| RRSG➣Radar Remote Sensing Group (University of Cape Town; South Africa) |
| RRSG➣Ronald Reagan Carrier Strike Group |
| RRSG➣Rolls-Royce Silver Ghost (Rolls-Royce Ltd.) |
| RRSG➣Risk Reduction Steering Group (Organisation for Economic Co-operation and Development) |