| NM | Air Madrid [IATA-Airline-Code/ Spanien] |
| ra | Real Audio / Real Media Datei eine Dateiendung |
| RE | Real Estate Grundbesitz |
| RR | Real Reality |
| NRT | Non Real Time |
| NARG | Not A Real Gentleman jmd. der sich ausschweifend über ein zu langweiliges Thema unterhält |
| RT | Real / Run Time |
| RV | Real Virtuality |
| rt | Chatsprache: real time Chat-Kürzel: Echtzeit |
| REER | Real exchange rate |
| REN | Real Estate Norm |
| RFLA | Real Full Look Ahead |
| RTE | Real-Time Enterprise |
| rl | Chatsprache: real life Chat-Kürzel: reelles//wirkliches Leben |
| RTM | Real-Time Monitoring |
| RTC | Real Time Controller |
| RTC | Real Time Clock |
| RTS | Real Time System |
| NRTM | Near Real Time Mirroring |
| RTK | Real Time Kernel |
| DIRT | Design In Real-Time |
| BRL | Brasilian Real [portugisisch] Währungsbezeichnung nach ISO in Brasilien |
| RTV | Real Time Video |
| RAC | Real Application Cluster |
| RTU | Real Time Unix |
| RCO | Real Cost of Ownership |
| TPRE | Top Producer in Real Estate |
| VBR-RT | Variable Bit Rate - Real Time |
| VBR-NRT | Variable Bit Rate - No Real Time |
| RWCP | Real World Computing Project |
| RVML | Real Virtuality Modeling Language |
| RTOS | Real Time Operating System |
| RTVM | Real Time Virtual Machine |
| RTSJ | Real Time Specification for Java |
| CLRTC | Clear Real Time Clock |
| RTAI | Real Time Application Interface |
| RTDL | Real-Time Data Link |
| ERAS | Extended Real Associated Solution [Modell] |
| JRTS | Java Real Time System |
| RTGS | Real-Time Gross Settlement system |
| TRON | The Real-time Operating [system] Nucleus |
| ARTIC | A Real Time Interface Coprocessor [engl.] Firmenbezeichnung [IBM] |
| R | Radio, Real, Receive, Reference, Remote |
| RDOS | Real-time Disk Operating System |
| RSX | Real time resource Sharing Executive |
| RTEID | Real Time Executive Interface Definition |
| burp | Brewers United for Real Potables [engl.] |
| CORAL | Computer Online Real-Time Applications Language |
| CART | Communication Access Real-time Transcription [engl.] Zeichensprache für Schwerhörige |
| RACKS | Reusable Application Interface for Communicating Real-Time Kernels |