| Acronym | Definition |
|---|
| ECTA➣Essex County Trail Association (Hamilton, MA) |
| ECTA➣European Competitive Telecommunications Association |
| ECTA➣Early Childhood Teachers Association (Australia) |
| ECTA➣European Chemical Transport Association (Belgium) |
| ECTA➣Electronic Cigarette Trade Association (Canada) |
| ECTA➣East Coast Timing Association (racing; Townsend, DE and Enterprise, AL) |
| ECTA➣European Communities Trade Mark Association (Antwerp, Belgium) |
| ECTA➣European Callers and Teachers Association (square dance) |
| ECTA➣European Cutting Tools Association |
| ECTA➣Eurasian Colorectal Technologies Association |
| ECTA➣Empowering Communities to Transcend Adversity |
| ECTA➣Executive Counselling and Training Academy (Singapore) |
| ECTA➣Enzyme-Catalyzed Therapeutic Agent |
| ECTA➣Evolutionary Computation Theory and Application (conference) |
| ECTA➣European Collegiate Tennis Association (est. 2007) |
| ECTA➣Équipe de Combat Tactique d'Airsoft d'Ile de France (French airsoft team) |
| ECTA➣Eastern Canadian Thoroughbred Association (est. 1983) |
| ECTA➣Education, Curriculum, and Training Associates (Nepal) |
| ECTA➣East Cheshire Training and Assessment Centre (Cheshire, UK) |
| ECTA➣Exploratory Clinical Trial Applications (various organizations) |
| ECTA➣Edinburgh Community Technology Academy (UK) |
| ECTA➣East Coast Trail Association |
| ECTA➣European Commission Technical Assistance |
| ECTA➣Educación, Comunicación y Tecnología Alternativa |
| ECTA➣Emissions Control Technology Association |
| ECTA➣East Career and Technical Academy (Las Vegas, NV) |
| ECTA➣Equipe Communautaire de Traitement Actif (French: Community Active Treatment Team; Canada) |
| ECTA➣European Conference on Trafficking in Arms |
| ECTA➣Engineer Center Team Activities |