| Abbreviation | Definition |
|---|---|
| RORI | Remotely Operated Rescue Initiative |
| RORI | Roll Over Rig Info |
| RORO | Risk On Risk Off |
| RORO | ro ro Ro Ro |
| RORO | Ro Ro Ro Ro |
| RORO | Roll on Roll Off |
| RORO | Roll on/roll off |
| RORO | Roll-On Roll-Off |
| RORS | Radar Ocean Reconnaissance Satellite |
| RORS | Rapid Ordnance Removal System |
| RORS | Redhawk Online Registration System |
| RORS | Residual Oil Recovery System |
| RORS | Royal Order Of Red Suspenders |
| RORT | rorted |
| RORT | rorting |
| ROS | Race Online Series |
| ROS | Rain Or Shine |
| ROS | Raster Output Scanner |
| ROS | Reactive Oxygen Stke |
| ROS | Read Optimized Store |