| Acronym | Definition |
|---|
| CTAC | Creative Audio Codec |
| CTAC | Crooked Tree Arts Center (est. 1971) |
| CTAC | Citroën Traction Avant Club (Swiss automobile club) |
| CTAC | Centre Territorial d'Administration et de Comptabilité (French: Territorial Administration and Accounting Center) |
| CTAC | Chemical Transportation Advisory Committee |
| CTAC | Communications Training Analysis Corporation (Fairfax, VA) |
| CTAC | Cable TV Advisory Committee (Massachusetts) |
| CTAC | Counter-Drug Technology Assessment Center |
| CTAC | Customer Technical Assistance Center (Sprint) |
| CTAC | Center for Army Tactics |
| CTAC | Computerised Track Access Control System (UK) |
| CTAC | Carlsbad Field Office Technical Assistance Contractor |
| CTAC | Cisco Technical Assistance Center |
| CTAC | Critical Thinking Assessment Committee (Phoenix College, Arizona) |
| CTAC | Corps Tactical Command Post |
| CTAC | Consolidated Test And Certification (US Navy) |
| CTAC | Cryptologic Technician (Administrative) Chief (US Navy) |