| Acronym | Definition |
|---|
| RTR | Ready To Run |
| RTR | Rotor |
| RTR | Ready To Race |
| RTR | Rundfunk & Telekom Regulierungs Gmbh |
| RTR | Ready to Roll |
| RTR | Royal Tank Regiment (British) |
| RTR | Receiver-Transmitter (DoD signal equipment) |
| RTR | Reel-To-Reel (older recording devices) |
| RTR | Radio e Televisiun Rumantscha (Romansh Radio and Television, Switzerland) |
| RTR | Read the Rest |
| RTR | Response Time Reporter |
| RtR | Road to Rome (game expansion pack) |
| RTR | Ready to Rumble |
| RTR | Real-Time Radiography |
| RTR | Russian Television and Radio (Russian national TV broadcaster) |
| RTR | Room to Room |
| RTR | Racing Throttle Response (TVS Motor Company) |
| RTR | Raise The Roof |
| RTR | Ready-To-Receive (IBM VTAM) |
| RTR | Remote Transmission Request |
| RTR | Rome: Total Realism (gaming modification for Rome: Total War) |
| RTR | Road to Revolution (Linkin Park album) |
| RTR | Reliable Transaction Router |
| RTR | Remote Transmitter/Receiver |
| RTR | Real-Time Racing Game (video game) |
| RTR | TV- and Radio Company (Russian) |
| RTR | Rotaractor |
| RTR | Run to Run (variation) |
| RTR | Roll Tide Roll (University of Alabama) |
| RTR | Right to Rule (gaming clan) |
| RTR | Renal Transplant Recipient |
| RTR | Real Time Replenishment (telecommunications) |
| RTR | Reinforced Thermosetting Resin (piping material) |
| RTR | Real-Time Relationships (Stefan Molyneux book) |
| RTR | Rapid Technology Rationalization (Novell) |
| RTR | Record to Report (business process) |
| RTR | Research and Test Reactor |
| RTR | Right to Rebel (online gaming clan) |
| RTR | Registered Technologist, Radiography |
| RTR | Real Time Retargeting |
| RTR | Resort Timeshare Resale |
| RTR | Response to Request Message (FIPS) |
| RTR | Revised Technical Report |
| RTR | Report of Test Results |
| RTR | Return to Research (program) |
| RTR | Real Time Rater |
| RTR | Real-Time Raster |
| RTR | Reactor Technology Report |
| RTR | Research and Technology Resume (NASA) |
| RTR | Radar Trajectory Report (DoD) |
| RTR | Roof-Top-Ratio |
| RTR | Requirement Traceability Report |
| RTR | Response Time Recorder |
| RTR | Returning to Ramp |
| RTR | Resonant Transient Radiation |
| RTR | Retirement Trust Resources |
| RTR | Régime de Travail Radiologique (French: Radiological Work Plan) |
| RTR | Replenishment Tax Rate (Texas) |
| RTR | Ryder Truck Rental LLP |