| RRT | Department of Resource Recreation and Tourism, University of Idaho 
| Others |
| RRT | Radeon Registry Tool
| Others |
| RRT | Radical Radiation Therapy
| Others |
| RRT | Radio Reconnaissance Technologies
| Others |
| RRT | Radiographic Radiologic Technologist
| Others |
| RRT | Raider Regional Transit
| Others |
| RRT | Rail Rapid Transit
| Others |
| RRT | Rainbow Round Table
| Others |
| RRT | Rapid Release Technology
| Others |
| RRT | Rapid Release Therapy
| Others |
| RRT | Rapid Relief Team
| Others |
| RRT | Rapid Resolution Therapy
| Others |
| RRT | Rapid Response Team
| Others |
| RRT | Rapid Response Teams
| Others |
| RRT | Rapid Response Transmittal
| Others |
| RRT | Rapidly-Exploring Random Tree
| Others |
| RRT | Rate Revision Tool
| Others |
| RRT | Reading Resource Teacher
| Others |
| RRT | Reading Road Trip
| Others |
| RRT | Real Rap Talk
| Others |
| RRT | Really Real Time
| Others |
| RRT | Really Really Tired
| Others |
| RRT | Recommended Repair Tape
| Others |
| RRT | Recommended Replacement Time
| Others |
| RRT | Recovery Right Token
| Others |
| RRT | Red River Telephone
| Others |
| RRT | Reference Rendering Transform
| Others |
| RRT | Regimen-Related Toxicity
| Others |
| RRT | Regional Resource Team
| Others |
| RRT | Regional Response Team
| Others |
| RRT | Regional Response Teams
| Others |
| RRT | Registered Respiratory Therapist
| Others |
| RRT | Registered Respiratory Therapists
| Others |
| RRT | Registered Respitory Therapist
| Others |
| RRT | Reinstatement Request Transaction
| Others |
| RRT | Relative Residence Time
| Others |
| RRT | Relative Retention Time
| Others |
| RRT | Remove Restrictions Tool
| Others |
| RRT | Renal Replacement Therapy
| Others |
| RRT | Rendezvous Radar Transducer
| Others |
| RRT | Rendezvous Radar Transponder
| Others |
| RRT | Repeat and Recall Test
| Others |
| RRT | Request Remailing To ....
| Others |
| RRT | Rescue Referral and Transport
| Others |
| RRT | Resource Recovery Technologies
| Others |
| RRT | Resource Resolution Table
| Others |
| RRT | Restaurant Revolution Technologies
| Others |
| RRT | Reverse Recovery Time
| Others |
| RRT | Rhetoric Resources at Tech ( Georgia Tech)
| Others |
| RRT | Ridgeline Rt
| Others |
| RRT | Risk Rating Tool
| Finance, Analytics Software |
| RRT | Road Rally and Track
| Others |
| RRT | Roads Rivers and Trails
| Others |
| RRT | Robidoux Resident Theatre
| Others |
| RRT | Rollover Rates Tool
| Others |
| RRT | Rotation Rotation Translation
| Others |
| RRT | Rothmans Rally Team
| Others |