| CTCA | California Tuberculosis Controllers Association 
| Others |
| CTCA | Cancer Treatment Center of America
| Others |
| CTCA | Cancer Treatment Centers of America
| Others |
| CTCA | Centre for Tobacco Control in Africa
| Others |
| CTCA | Channel-To-Channel Adapter
| Others |
| CTCA | Chinese Taipei Chess Association
| Others |
| CTCA | Christ Trinity Christian Academy
| Others |
| CTCA | Colorado Teen Court Association
| Others |
| CTCA | Commission for Technical Cooperation in Africa
| Others |
| CTCA | Compact Telecommunications Computing Architecture
| Others |
| CTCA | Computed Tomography Coronary Angiography
| Others |
| CTCA | Computed Tomography, Coronary Angiography
| Others |
| CTCA | Computerized tomography coronary angiogram
| Others |
| CTCA | Coton de Tulear Club of America
| Others |