| Abbreviation | Definition |
|---|---|
| ROM | Restriction of Movement |
| ROM | Rough Order of Magnitude |
| ROM | Routine Operations and Maintenance |
| ROME | Reception Onward Movement Europe |
| ROMEC | Roman Military Equipment Conference |
| ROMO | Range of Military Operations |
| ROMP | Riding On Military Pride |
| RON | Remain Overnight |
| ROO | Research On Optics |
| ROP | Rate Of Penetration |
| ROP | Record of Proceedings |
| ROPD | Range Operations Professional Development |
| ROPOS | Remotely Operated Platform for Ocean Science |
| ROR | Residual Oil Remover |
| RORO | Roll-On, Roll-Off |
| ROS | Reconstitution Operational State |
| ROS | Reduced Operational Status |
| ROSB | Regular Officers Selection Board |
| ROSC | Regional Operations and Security Center |
| ROT | Redundant, Outdated, and Trivial |