CTRN
| 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 |