| Rubble Rescue Radar (A low power hand-held microwave device for the detection of trapped human personnel) | Academic & Science |
| Required Reserve Ratio | Accounts and Finance |
| Repair or Replacement Requisition | Business |
| Red Rock | Business |
| Reverse Repo Rate | Business |
| Recreation Respite Resilience | Community |
| Rights, Roles, and Responsibilities | Community |
| Receiving Recording Reviewing | Community |
| Reading Respect Responsibility | Community |
| Rest, Relaxation, and Rejuvenation | Community |
| Reference, Recreation, and Reward | Community |
| Romper Room Reject | Community |
| Risk Reduction and Rehabilitation | Community |
| Race Religion and Representation | Community |
| Routing with Resource Reservation | Computing |
| Registrant Rights and Responsibilities | Computing |
| Round Robin Rtos | Computing |
| Residual Resistance Ratio | Electronics |
| Reduced Rank Regression | General |
| Reading Review and Recitation | General |
| Resting Respiratory Rate | General |
| Restore Repair Renew | General |
| Rights Respect and Responsibilities | General |
| Respiration Rate and Rhythm | General |
| Roll Random Remake | General |
| Risk Reward Ratio | General |
| Range Rover Register | General |
| Regional Ring Road | General |
| Road Runner Racing | General |
| Ready to Run Raceway | General |
| Rules of Road Regulations | General |
| Rat Rod Rendezvous | General |
| Rat Rod Rumble | General |
| Rat Rods Rule | General |
| Romanian Retro Racing | General |
| Roebling Road Raceway | General |
| Readin Riten Rithmatic | General |
| Robot Rubber Renegades | General |
| Rum Romanism And Rebellion | General |
| Raging Roid Retard | General |
| Return Receipt Requested | General |
| Reboot Reformat Reinstall | General |
| Rick Renner Readers | General |
| Rip Roaring Rooters | General |
| re Reserve Requirement | General |
| Rayman Raving Rabbids | General |
| Reading Riting Rithmetic | General |
| Red Rock Resources | General |
| Required Rate Of Return | General |
| Russian River Register | General |
| Rigor Relevance Relationships | General |
| Reserve Requirement Ratio | General |
| Reiger Reeks Records | General |
| Remita Retrival Reference | General |
| Rights Restrictions and Responsibilities | General |
| Reclaim Refurbish Reuse | General |
| Rapid Runway Repair | General |
| Relative Risk Ratio | General |
| Rigor Relationship and Relevance | General |
| Reading Reveiw And Recitation | General |
| Red Rock Resorts | General |
| Ra Ra Riot | General |
| Respect Relationships Reconciliation | General |
| Remita Retrieval Reference | General |
| Rice Reinforced Rolls | General |
| Return Risk Ratio | General |
| Redeployment retraining and redundancy | General |
| Raghupati Raghava Rajaram | General |
| Rolling Review of Requirements | General |
| Risk Reliability and Resilience | General |
| Reduce Reuse and Recycle | General |
| Relative Risk Reduction Risk Reduction Report | Governmental |
| Risk Retention Reporter | Governmental |
| Rural, Remote, and Regional | Governmental |
| Reduce, Reuse, Recycle | Governmental |
| Reform, Relief, Recovery | Governmental |
| RAJARAMPUR HALT | Indian Railway Station |
| Relative Risk Reduction | Maths |
| Regular rate and rhythm | Medical |
| Really Really Really | Messaging |
| Sos for A Surface Raider Attack | Military and Defence |
| Risk Reduction Report | Military and Defence |
| రౌద్రం రణం రుధిరం | News & Entertainment |
| Rural Regional Remote | Regional |
| Risk Reduction Review | Space Science |
| Real Race Replica | Sports |
| Roaring River Rescue | Sports |
| Raroia Airport | Transport & Travel |
