| Abbreviation | Definition |
|---|---|
| RTTL | Radio Televizaun Timor Leste |
| RTTL | real time temporal logic |
| RTTL | Real Time Threat List |
| RTTL | Regional |
| RTTL | Regional Tournament Team Leader |
| RTTL | Run Through the Lights |
| RTTM | Real Time Threat Monitoring |
| RTTM | Real Time Trade Matching |
| RTTM | Real Time Transient Model |
| RTTM | Remote Telemetry Testing Module |
| RTTM | Round Trip Time Measurements |
| RTTP | Reacting To The Past |
| RTTP | Real-Time Transport Protocol |
| RTTP | Return To The Pit |
| RTTR | Radio Tele Trentino Regionale |
| RTTR | Real Time Tomographic Reflection |
| RTTR | Recreation Tourism and Therapeutic Recreation |
| RTTR | Return to the Roots |
| RTTR | Road to the Riches |
| RTTS | Real Time Translation Service |