DMI
- 1,3-Dimethyl-2-imidazolidinone
- Dairy Management Inc.
- Danish Meteorological Institute
- Data Management Inc.
- Dead Man Incorporated
- Des Moines, Iowa
- Desktop Management Interface
- Development Media International
- Dhulikhel Medical Institute
- Digital Manga
- Digital Media Initiative
- Direct Media Interface
- Direct manipulation interface
- Directorate of Military Intelligence (United Kingdom)
- Dominica
- Drum Major Institute
- Dry matter
- Dubai Media Incorporated
- Dunder Mifflin
- Dzyaloshinskii-Moriya Interaction
- List of aviation, aerospace and aeronautical abbreviations