| CTAC | Cable Technical Advisory Committee 
| Others |
| CTAC | Carrier Technical Assistance Center
| Others |
| CTAC | Cell Tissue Analysis Core
| Others |
| CTAC | Center for Army Tactics (formerly CAT and Department of TACTICS at CGSC)
| Others |
| CTAC | Center for Trauma And Children
| Others |
| CTAC | Center on Trauma and Children
| Others |
| CTAC | Central Texas Autism Center
| Others |
| CTAC | Cerberus Telecom Acquisition Corp
| Others |
| CTAC | Certification of Truth Accuracy and Completeness
| Others |
| CTAC | Chamber Transportation Advisory Committee
| Others |
| CTAC | Charitable Trust Administration Company
| Others |
| CTAC | CHECO Technical Advisory Committee
| Others |
| CTAC | Chemical Transportation Advisory Committee
| Others |
| CTAC | Children's Trauma Assessment Center
| Others |
| CTAC | Choice Time Activity Center
| Others |
| CTAC | Chromium Trioxide Authorisation Consortium
| Others |
| CTAC | Cisco Technical Assistance Center
| Others |
| CTAC | Citizen Transportation Advisory Committee
| Others |
| CTAC | Citizens Transportation Advisory Committee
| Others |
| CTAC | Citroen Traction Avant Club
| Others |
| CTAC | Citywide Transportation Advisory Committee
| Others |
| CTAC | Clinic Technical Assistance Center
| Others |
| CTAC | Clinical Teaching and Assessment Center
| Others |
| CTAC | Clinical Training and Assessment Center
| Others |
| CTAC | Clinical Trials Administration Committee
| Others |
| CTAC | Clinical Trials Audit and Compliance
| Others |
| CTAC | Coalition to Transform Advanced Care
| Others |
| CTAC | Colonial Tactical Assault Corps
| Others |
| CTAC | Coming Together Against Cancer
| Others |
| CTAC | Commercial Targeting and Analysis Center
| Others |
| CTAC | Commercial Technical Assistance Center
| Others |
| CTAC | Communications Technician (administrative) Chief Petty Officer
| Others |
| CTAC | Communications Training Analysis Corp
| Others |
| CTAC | Communications Training Analysis Corporation
| Others |
| CTAC | Community Technical Aid Centre
| Others |
| CTAC | Community Technical Assistance Center
| Others |
| CTAC | Community Technical Assistance Collaborative
| Others |
| CTAC | Community Training and Assistance Center
| Others |
| CTAC | Compassion Transparency And Cooperation
| Others |
| CTAC | Computational Techniques Applications Conference
| Others |
| CTAC | Computer Technology Assistance Corps
| Others |
| CTAC | Concrete Testing Adherence Collaboration
| Others |
| CTAC | Container Terminal Automation Conference
| Others |
| CTAC | Contractor Technical Advisory Committee
| Others |
| CTAC | Creative Audio Codec
| Others |
| CTAC | Crooked Tree Arts Center
| Others |
| CTAC | Cryptologic (administrative) Chief Petty Officer
| Others |
| CTAC | Cyber Threat Analysis Center
| Others |