| Acronym | Definition |
|---|
| CTRN➣Colorado Technical Recruiters Network |
| CTRN➣Can't Talk Right Now |
| CTRN➣Carta Tecnica Regionale Numerica (Italian: Regional Technical Paper Numerical Scale; cartography) |
| CTRN➣Central of Tennessee Railway and Navigtion Company |
| CTRN➣Certified Transport Registered Nurse |
| CTRN➣Change That's Right Now, Inc (New York, NY phobia clinic) |
| CTRN➣Clinical Trials Research Nurse |