- DIID stands for Data Independent Interface for Database (Klaus K. Obermeier abstract)
- DIID stands for District Intelligence and Investigation Division (Philippines)
- DIID stands for Disegno Industriale Industrial Design (Italian publication)
- DIID stands for Digital Item Identification and Description
- DIID stands for Detection and Identification of Infectious Diseases (Foresight; UK)
- DIID stands for Department of Immunology and Infectious Diseases (Harvard School of Public Health; Boston, MA)
DIID