| Acronym | Definition |
|---|
| RTIS➣Real Time Information System (various companies) |
| RTIS➣Real Time Interactive Simulation (degree; DigiPen Institute of Technology) |
| RTIS➣Remote Traffic Information System |
| RTIS➣Real-Time in Sweden |
| RTIS➣Regional Traffic Information Services |
| RTIS➣Raytheon Texas Instruments Systems |
| RTIS➣Real Time Inventory Status (Java) |
| RTIS➣Reed Technologies and Information Services |