| Acronym | Definition |
|---|
| CTSA | Clinical and Translational Science Awards |
| CTSA | Canadian Table Soccer Association |
| CTSA | Catholic Theological Society of America |
| CTSA | Cleaner Technologies Substitutes Assessment |
| CTSA | Citizenship Through Sports Alliance |
| CTSA | Cardio-Thoracic Surgical Associates (Pittsburgh, PA) |
| CTSA | Corporation Tax Self-Assessment (UK) |
| CTSA | Center for Tropical and Subtropical Aquaculture |
| CTSA | Central Tibetan Schools Administration (India) |
| CTSA | Center for the Treatment and Study of Anxiety |
| CTSA | Canada Transpacific Stabilization Agreement |
| CTSA | Counter Terrorism Security Adviser (UK) |
| CTSA | Consumer and Trading Standards Agency (UK) |
| CTSA | Consolidated Transportation Services Agency |
| CTSA | Cape Town South Africa |
| CTSA | Channel Tunnel Safety Authority (United Kingdom) |
| CTSA | Catholic Television of San Antonio (Texas) |
| CTSA | Central Texas Silueta Association |
| CTSA | Cosmic Top Secret Atomal |
| CTSA | Columbia Taiwanese Student Association (Columbia University) |
| CTSA | Center for Theology and Social Analysis (St. Louis, MO) |
| CTSA | China Thermal Spraying Association |
| CTSA | Coordinated Transportation Service Agency |
| CTSA | Central Tribes of the Shawnee Area (Shawnee, OK) |
| CTSA | Cornell Taiwanese Student Association |
| CTSA | Coordinated Transportation Services Agency |
| CTSA | Canadian Tourism Satellite Account |
| CTSA | Center for Treatment and Study of Anxiety (University of Pennsylvania) |
| CTSA | Central Texas Sysops Association |
| CTSA | Canadian Theological Students' Association |
| CTSA | Churches Together in St Albans (UK) |
| CTSA | Computer and Tech Services of Appomattox |
| CTSA | Comprehensive Telecommunications Site Assessment |
| CTSA | Seaman Apprentice, Cryptologic Technician Striker (Naval Rating) |
| CTSA | Clear to Send A |
| CTSA | Certificate in Teaching Spanish to Adults |
| CTSA | Cooperative Technical Support Agreement |
| CTSA | Critical Thinking and Structured Analysis (analytical processes) |
| CTSA | Citizens Through Sports Alliance (United States Olympic Committee) |
| CTSA | Campus Technology Services Administrator |
| CTSA | Chaotic Time-Series Analysis |
| CTSA | Canadian Tamil Sports Association |
| CTSA | CoderTown Software Association |
| CTSA | Consolidated Transit Agency |
| CTSA | Corporate Technology Support Agreement (Aztec Systems) |
| CTSA | Carrier Transicold South Africa |
| CTSA | Centre de Transfusion Sanguine des Armées (French: Armed Forces Blood Transfusion Center) |
| CTSA | Continental Tyre South Africa |