| Abbreviation | Definition |
|---|---|
| RTM | Right to Manage |
| RTM | Risk Terrain Modeling |
| RTM | Road Tech Marine |
| RTMA | Rav Teitz Mesivta Academym |
| RTMI | Radio Telefono Mobile Integrato |
| RTMI | Radtke Tile and Marble Inc |
| RTMI | Return to Mysterious Island |
| RTMP | Real-Time Messaging Protocol |
| RTMP | Routing Table Maintenance Protocol |
| RTMS | Real Time Monitoring System |
| RTMS | really tight male sphincter |
| RTMS | Remote Traffic Microwave Sensor |
| RTMS | Ridley Trek Merckx Specialized |
| RTMT | Real Time Mega Traffic |
| RTN | Racetrack Television Network |
| RTN | Raleigh Television Network |
| RTN | Rate Treatment Number |
| RTN | Real Time Network |
| RTN | Real Time Networks |
| RTN | Register Tape Network |