| Acronym | Definition |
|---|
| DEM | Democrat |
| DEM | Department of Environmental Management |
| DEM | Division of Emergency Management |
| DEM | Demonstration (File Name Extension) |
| DEM | Discrete Element Method (numerical simulation technique for particle dynamics problems) |
| DEM | Department of Emergency Management (Texas) |
| DEM | Deutsche Mark (former currency code; also seen as DM; replaced by EUR) |
| DEM | Deus Ex Machina (Latin: God from the Machine) |
| DEM | Digital Elevation Map |
| DEM | Demurrage (shipping) |
| DEM | Differential Emission Measure |
| DEM | Demostrativo (Spanish: Demonstration) |
| DEM | Direct-Entry Midwife |
| DEM | Diplôme d'Etudes Musicales (French: Diploma of Musical Studies) |
| DEM | Don't Eat Me |
| DEM | Dynamic Enterprise Modeling |
| DEM | Data Encapsulation Mechanism (cryptography; see also Key Encapsulation Mechanism) |
| DEM | Diabetes, Endocrinology, and Metabolism |
| DEM | Data Exchange Module (software engineering) |
| DEM | Digital Elevation Matrix |
| DEM | Dembidollo, Ethiopia - Dembidollo (Airport Code) |
| DEM | Digital Evaluation Model (mapping) |
| DEM | Door Eendracht Macht (Dutch) |
| DEM | Dynamic Estuary Model |
| DEM | Department of Engineering Management |
| DEM | Defect Estimation Model |
| DEM | Discrete Electromagnetism |
| DEM | Data Element Tool-Based Analysis |
| DEM | Diagnostic Event Manager |
| DEM | Digital Event Marker |
| DEM | Deployment Extension Model |
| DEM | Data Expert Meeting |
| DEM | Density Evolution Model |
| DEM | Distinguishable Electron Method |
| DEM | Document Evaluation Methodology |
| DEM | Domain Executable Model |
| DEM | Détresse des Enfants du Monde (French: Distress of Children of the World) |
| DEM | Division of Enrollment Management |
| DEM | Décapages Emballages Métalliques (French: Stripping Metal Packaging) |
| DEM | Dose Efficace Moyenne (French: Average Effective Dose) |
| DEM | Détection Électro-Magnétique (French: Electro-Magnetic Detection) |
| DEM | Direct Email Marketing |