- DCET stands for Dawood College of Engineering and Technology (Karachi, Pakistan)
- DCET stands for Debes Creer en Ti (Spanish: Believe in Yourself; Irving, TX)
- DCET stands for Delaware Center for Educational Technology (Smyrna, DE)
- DCET stands for Dorset Centre for Educational Technology (UK)
- DCET stands for Defect Content Estimation Technique (software)
DCET