| Abbreviation | Definition |
|---|---|
| RMZ | Riparian Management Zone |
| RN | Registered Numbers |
| RNCS | Revised National Curriculum Statement |
| RNKMEM | Ranking Member |
| RNM | Regional Negotiating Machinery |
| RNM-VS | Regional Negotiating Machinery - Virtual Secretariat |
| RNO | Real National Output |
| RNQ | Republican Nomination Quantity |
| RO | Regional Office |
| ROAD | Reclaim Our Allocated Dollars |
| ROAD | Riders Of American Defence |
| ROC | Region Operating Committee |
| ROD | Real Old Dirt |
| ROI | Regions Of Interest |
| ROI | Release Of Information |
| ROMA | Results Oriented Management And Accountability |
| ROPS | Roll Over Protection Standard |
| ROQ | Royalty Override Qualified |
| ROR | Return Of the Right Coalition |
| ROSC | Reachback Operations Support Center |