| Abbreviation | Definition |
|---|---|
| ROIQ | Return On Investment Quiz |
| ROIU | Royal Outlands Interkingdom University |
| ROKU | Republic Of Korea University |
| ROM | Register Of Merit |
| RON | Research Octane Number |
| ROO | Research On Optics |
| ROP | Regional Occupation Programs |
| ROP | Regional Occupational Placement |
| ROPE | Research Objectives Programming And Evaluation |
| ROSE | Recognition Of Superior Effort |
| ROSE | Research Opportunities Scholarships And Enrichment |
| ROSS | Rely On Self Study |
| ROTC | Reserve Officer's Training Corps |
| ROTP | Reserve Officers Training Program |
| ROV | Remotly Operated Vehicle |
| RP | Research and Pathfinding |
| RP | Research Path |
| RPD | Research And Publication Department |
| RPG | Research Project Grant |
| RPI | Rensselaer Polytechnic Institute |