- DDIT stands for Developed Dimension Information Technology (Saudi Arabia)
- DDIT stands for DNA Damage-Inducible Transcript
- DDIT stands for Dharmsinh Desai Institute of Technology (Nadiad, India)
- DDIT stands for Demag Delaval Industrial Turbomachinery (Siemens AG)
- DDIT stands for Differential Digital Image Tracking
- DDIT stands for Dependable Drive In Theater (Moon Township, PA)
- DDIT stands for Double Deduction Incentive for Training (Malaysian Industrial Development Authority)