| Abbreviation | Definition |
|---|---|
| RTAFA | Royal Thai Air Force Academy |
| RTAP | Radiologic Technology Advanced Placement |
| RTAS | Recruitment, Transfer, Admissions, and Scholarships |
| RTC | Regional Technological Capability |
| RTC | Required To Create |
| RTD | Research and Technological Development |
| RTI | Radio Technical Institute |
| RTI | Radio Training Institute |
| RTI | Research and Training Institute |
| RTL | Radiative Transfer Laboratory |
| RTMNU | Rashtrasant Tukadoji Maharaj Nagpur University |
| RTO | Research and Technology Organization |
| RTP | Regents Testing Program |
| RTPC | Regional Trade Policy Course |
| RTPL | Research Track in Philosophy and Literature |
| RTRP | Research Time Release Program |
| RTS | Reformed Theological Seminary |
| RTS | Research Training Scheme |
| RTS | Rice Transliteration Scheme |
| RTS | Row Title Space |