| MDD | Machined Direct Drive 
| Others |
| MDD | Maintenance Deferred Defect
| Others |
| MDD | Major Depression Disorder
| Others |
| MDD | Major Depressive Disorder
| Others |
| MDD | Making Digits Dance
| Others |
| MDD | Mal De Debarquement Syndrome
| Others |
| MDD | Maladaptive Daydreaming Disorder
| Others |
| MDD | Management Digital Data
| Others |
| MDD | Manic Depressive Disorder
| Others |
| MDD | Marcel Douwe Dekker
| Others |
| MDD | Marijuana Detection Dog
| Others |
| MDD | Marque Des Distributeurs
| Others |
| MDD | Mass Death Destruction
| Others |
| MDD | Mate Demate Device
| Others |
| MDD | Mate/Demate Device
| Others |
| MDD | Material Driven Design
| Others |
| MDD | Materiel Development Decision
| Others |
| MDD | Maximum Daily Dose
| Others |
| MDD | Maximum Density Droplet
| Others |
| MDD | Maximum Dry Density
| Others |
| MDD | Mean Daily Dose
| Others |
| MDD | Mean Dependency Distance
| Others |
| MDD | Meaning Definition Document
| Others |
| MDD | Medical Data Drill
| Others |
| MDD | Medical Device Directive
| Others |
| MDD | Medical Device Directives
| Others |
| MDD | Medical Devices and Diagnostics
| Others |
| MDD | Medical Devices Directive
| Others |
| MDD | Medical Devices Directorate
| Others |
| MDD | Melodyne Definition Data
| Others |
| MDD | Membership Development Director
| Others |
| MDD | Memory Disk Drive
| Others |
| MDD | Meteorological Data Distribution
| Others |
| MDD | Miami Design District
| Others |
| MDD | Millennium Dawn Designs
| Others |
| MDD | Millennium Dynamic Deformer
| Others |
| MDD | Mine Detection Dog
| Others |
| MDD | Mineral Deposits Division
| Others |
| MDD | Mini design document
| Others |
| MDD | Mini Dollfie Dream
| Others |
| MDD | Minimal Disseminated Disease
| Others |
| MDD | Minimum Detectable Difference
| Others |
| MDD | Minimum Detected Dose
| Others |
| MDD | Minimum Dietary Diversity
| Others |
| MDD | Mirror Door Drive
| Others |
| MDD | Mirror Drive Door
| Others |
| MDD | Mirrored Disk Drive
| Others |
| MDD | Mirrored Drive Door
| Others |
| MDD | Mirrored Drive Doors
| Others |
| MDD | Mitsubishi Driving Day
| Others |
| MDD | Model Device Driver
| Others |
| MDD | Model Driven Development
| Others |
| MDD | Montana Dangerous Drug
| Others |
| MDD | Mountain Desert District
| Others |
| MDD | Movement for Democracy and Development
| Others |
| MDD | Multi Depth Deflectometer
| Others |
| MDD | Multi Domed Daemon
| Others |
| MDD | Multi Dynamic Documentation
| Others |
| MDD | Multi-Dimensional Data
| Others |
| MDD | Multicast Data Dump
| Others |
| MDD | Multiple Daily Dosing
| Others |
| MDD | Municipal Development District
| Others |
| MDD | Musiru Ddala Ddala
| Others |
| MDD | My Dear Darling
| Others |