| CTTF | Cars That Time Forgot
| Others |
| CTTF | Central Test and Training Facility
| Others |
| CTTF | Childhood Trauma Task Force
| Others |
| CTTF | Children of Tibet Trust Foundation
| Others |
| CTTF | Chinese Taipei Trust Fund
| Others |
| CTTF | Citizens Traffic Task Force
| Others |
| CTTF | Citywide Traffic Task Force
| Others |
| CTTF | Clinical Trial Task Force
| Others |
| CTTF | Clinical Trials Task Force
| Others |
| CTTF | Consolidated Training Facility
| Others |
| CTTF | Coordinated Transportation Task Force
| Others |
| CTTF | Counter Terrorism Task Force
| Others |
| CTTF | Cyber Terrorism Task Force
| Others |