| Acronym | Definition |
|---|
| CTAN➣Comprehensive TeX Archive Network |
| CTAN➣Cotangent |
| CTAN➣Central Texas Angel Network (business funding) |
| CTAN➣Center for Theoretical & Applied Neuroscience (Yale University; New Haven, CT) |
| CTAN➣CINCPAC Teletype Automated Net |
| CTAN➣Communications, Traffic Management, and Navigation System |
| CTAN➣Call to Action, Nebraska (Catholicism; Lincoln, NE) |