TTAC
| Acronym | Definition |
|---|---|
| TTAC | The Truth About Cars (website) |
| TTAC | Training and Technical Assistance Center |
| TTAC | Transportation Technical Advisory Committee (various locations) |
| TTAC | Transportation Threat Assessment and Credentialing (TSA) |
| TTAC | Tobacco Technical Assistance Consortium (est. 2001; Atlanta, GA) |
| TTAC | Terrorist Threat Assessment and Credentialing |
| TTAC | Trinidad and Tobago Computer Society |