- DIEP stands for Deep Inferior Epigastric Perforator
- DIEP stands for Diabetes Interactief Educatie Programma (Dutch: Interactive Diabetes Education Program)
- DIEP stands for Diabetes in Early Pregnancy
- DIEP stands for Defence International Engagement Plan (Australia)
- DIEP stands for Depository Institutions Expert Panel (American Institute of Certified Public Accountants)
DIEP