| Abbreviation | Definition |
|---|---|
| RRW | Revlon Run/Walk |
| RRW | Rites Rights Writes |
| RRW | Robert Reid Wedding |
| RRW | Roundup Ready Wheat |
| RRW | Royal Regiment of Wales |
| RRX | Rhodamine Red X |
| RRY | Rajiv Rinn Yojana |
| RRY | Reference Reactor Year |
| RRY | Rocky Run YMCA |
| RRY | Ronald R Yager |
| RRZD | Rolniczy Rejonowy ZakBad Do[wiadczalny |
| RRZD | Rolniczy Rejonowy Zaklad Doswiadczalny |
| RRZD | Rolniczy Rejonowy Zakład Doświadczalny |
| RRZD | Rural Residential Zoning District |
| RS | R Spaceengine |
| RS | R Stands |
| RS | Race Sport |
| RS | Racing Sedan |
| RS | Radial Sport |
| RS | Raged Supercharge |