| Acronym | Definition |
|---|
| IRTC➣Internet Raytracing Competition |
| IRTC➣Internet Ray Tracing Competition |
| IRTC➣Internationally Recommended Transit Corridor (naval designation) |
| IRTC➣Independent Radio and Television Commission |
| IRTC➣Institute of Robotics and Technical Cybernetics (Russia) |
| IRTC➣Investment Recovery Trade Corporation (Asset Management & Liquidation Exchange) |
| IRTC➣Instructional Technology Resource Center |
| IRTC➣International Road Tar Conference |