| ECAT | Easton Community Access Television 
| Others |
| ECAT | Edinburgh Clinical Academic Training
| Others |
| ECAT | Electronic Card Assembly and Test
| Others |
| ECAT | Electronic Catalog
| Others |
| ECAT | Electronic Compliance Assistance Tool
| Others |
| ECAT | Electronic Compliance Audit Tools
| Others |
| ECAT | Electronically Controlled Automatic Transmission
| Others |
| ECAT | ELINT (ELectronic INTelligence) Correlation And Tracking
| Others |
| ECAT | Emergency Committee for American Trade
| Others |
| ECAT | Engineering College Admission Test
| Others |
| ECAT | Engineering College Aptitude Test
| Others |
| ECAT | Escambia County Area Transit
| Others |
| ECAT | European Communities Against Trafficking
| Others |
| ECAT | Extended Concatenation
| Others |