TTCN
| Acronym | Definition |
|---|---|
| TTCN | Tree and Tabular Combined Notation |
| TTCN | Tree and Tabular Combined Notation (ISO/IEC 9646) |
| TTCN | Testing and Test Control Notation |
| TTCN | Tennessee Technology Center at Newbern (Newbern, TN) |
| TTCN | Tennessee Technology Center at Nashville (education) |
| TTCN | Trust to the Truthful Check Node (decoders) |
| TTCN | Tahoe Truckee Community Network (California) |