| Acronym | Definition |
|---|
| CTCA | Cancer Treatment Centers of America |
| CTCA | Channel to Channel Adapter |
| CTCA | Centre for Tobacco Control in Africa (Uganda) |
| CTCA | Canadian Telecommunications Consultants Association |
| CTCA | Computed Tomography Coronary Angiography (cardiology) |
| CTCA | Channel-To-Channel Adapter |
| CTCA | Construction Technology Centre Atlantic, Inc. (University of New Brunswick) |
| CTCA | Confederación de Trabajadores de Centroamérica (Spanish: Confederation of Workers of Central America) |
| CTCA | Comanche Trail Community Association |
| CTCA | Commission for Technical Cooperation in Africa (London) |
| CTCA | Communicated Threat Credibility Assessment |