| Rich Text Format - Text document | File Extension | RTF |
| Run To Failure | Computer Hardware | RTF |
| Read the FAQ | SMS | RTF |
| Revisable Text Format | Computing | RTF |
| Raw Text Format | Computing | RTF |
| Regional Task Force | Military and Defence | RTF |
| Rich Text File | Computing | RTF |
| Rescue Task Force | Organization | RTF |
| Read The Tutorial First | Softwares | RTF |
| remote task force | Government | RTF |
| Radio Terminal Function | Computer and Networking | RTF |
| R plasmid Transcription Factor | Human Genome | RTF |
| Request Ticket Form | Media | RTF |
| Return To Force | Military and Defence | RTF |
| Research Task Force | Computer Security | RTF |
| radar test facility, 7 | Government | RTF |
| Resistance Transfer Factor | Electronics | RTF |
| Random Text Format | Funny | RTF |
| remote test facility | Government | RTF |
| Ready To Fly | Transportation | RTF |
| radiotelephone | Government | RTF |
| Rigid Thermal Foil | NASA | RTF |
| Referenced Text File | Computing | RTF |
| Return To Flight | Space Science | RTF |
| reconnaissance technical flight | Government | RTF |
| Rich Text Format | Computing | RTF |
