| Abbreviation | Definition |
|---|---|
| ROFLRL | Rolling on the Floor Laughing Real Loud |
| ROG | Railhead Operations Group |
| ROG | Rocket Over Ground |
| ROH | Regular Overhaul |
| ROI | Region Of Interest |
| ROI | Remote Operator Interface |
| ROI | Return On Investment |
| ROI | Route Of Ingress |
| ROIC | Resident Officer In Charge |
| ROICC | Resident Officer in Charge of Construction |
| ROID | Report Of Item Discrepancy |
| ROIM | RestOps Information Management |
| ROIMS | RestOps Information Management System |
| ROK | Republic Of Korea |
| ROK | Roger and OK |
| ROKA | Republic Of Korea Army |
| ROKMC | Republic Of Korea Marine Corps |
| ROM | Reception and Onward Movement |
| ROM | Recurring Operational Maintenance |
| ROM | Refuel On the Move |