MDL
- 1550
- Discretization of continuous features
- MDL (programming language)
- MDL Information Systems
- Mandalay International Airport
- Mazagon Dock Limited
- Method detection limit
- Microsoft Design Language
- Military Demarcation Line
- Minimum description length
- Mobile driver's license
- Moldovan leu
- Multidistrict litigation
- Museum of Dartmoor Life
- Source (game engine)