| Abbreviation | Definition |
|---|---|
| RTOS | Rochester Theater Organ Society |
| RTP | Rádio e Televisão de Portugal |
| RTP | RAISE Transfer Program |
| RTP | Rapid Thermal Processinga |
| RTP | Rapid Thermal Processing–a |
| RTP | Rapid Transport Protocol |
| RTP | Real Time Payments |
| RTP | Return To Play |
| RTP | return to player |
| RTP | Returnable Transport Packaging |
| RTP | Revision Test Papers |
| RTP | Richmond Triangle Players |
| RTP | Rio Tinto plc |
| RTP | Risk Tipping Point |
| RTP | Road To Platinum |
| RTP | Run Time Program |
| RTPA | Real Time Process Algebra |
| RTPA | regulated third party access |
| RTPA | Rocklin Teachers Professional Association |
| RTPC | Radio Transmitting Power Control |