| CETC | California Educational Technology Collaborative 
| Others |
| CETC | Canadian Economic Theory Conference
| Others |
| CETC | CANMET Energy Technology Centre
| Others |
| CETC | Carrara Education Technology Center
| Others |
| CETC | Centralized Electric and Traffic Control
| Others |
| CETC | Certification of European Transplant Coordinator
| Others |
| CETC | China Electronics Technology Group Corporation
| Others |
| CETC | CIPFA Education and Training Centre
| Others |
| CETC | Circulating Epithelial Tumor Cells
| Others |
| CETC | Clean Energy Technology Centre
| Others |
| CETC | Clean Enviro Tech Corp
| Others |
| CETC | Competitive Eligible Telecommunications Carrier
| Others |
| CETC | Computer and Electronic Technology Company
| Others |
| CETC | Connecticut Employment and Training Commission
| Others |
| CETC | Construction Electrician's Mate (telephone) Chief Petty Officer
| Others |
| CETC | Corporate Engagement Travel Company
| Others |
| CETC | Council-certified Environmental Thermography Consultant
| Others |
| CETC | CT Employment and Training Commission
| Others |