| Acronym | Definition |
|---|
| ECCT | Enterprise Capability Collaboration Team (US Air Force) |
| ECCT | Examen de Contrôle des Connaissances Techniques (French: Technical Knowledge Control Review) |
| ECCT | European Chamber of Commerce Taipei |
| ECCT | Eastern & Central Community Trust (New Zealand) |
| ECCT | Education Co-op of Central Texas (formerly Rio Brazos Education Cooperative) |
| ECCT | Excess Concessional Contributions Tax (Australia) |
| ECCT | Eau Claire Children's Theater (Eau Claire, Wisconsin) |
| ECCT | Enhanced Computer Controlled Teletext Circuits |
| ECCT | Extension Compression Cervical Traction (medical) |
| ECCT | Extension Counterstress Cervical Traction (medical) |
| ECCT | East Coast Computer Technologies, Inc. (Yaphank, NY) |