| ETEC | East Tennessee Economic Council 
| Others |
| ETEC | East Texas Electric Cooperative
| Others |
| ETEC | Eco Technology Exhibition Centre
| Others |
| ETEC | Edward Teller Education Center
| Others |
| ETEC | Electric Transportation Engineering Corporation
| Others |
| ETEC | Electronic Truck Engine Control
| Others |
| ETEC | Embedded Technology Engineer Certification
| Others |
| ETEC | Emerging Technologies Energy Conference
| Others |
| ETEC | Emerging Technology and Entrepreneurship Complex
| Others |
| ETEC | Energy Technology Engineering Center
| Others |
| ETEC | Energy Technology Expo Conference
| Others |
| ETEC | Enterotoxigenic Escherichia Coli
| Others |
| ETEC | Entropy Technology & Environmental Consultants
| Others |
| ETEC | Environmental Technology and Engineering Center
| Others |
| ETEC | Equal Tension Containment System
| Others |
| ETEC | European Traffic Education Contest
| Others |
| ETEC | Expendable Turbine Engine Concept
| Others |