| Rank | Abbreviation | Meaning |
|---|
| ***** | MMDC | Materials Management and Distribution Center
| |
| ***** | MMDC | Marcventures Mining & Development Corporation
| |
| **** | MMDC | Multimedia Development Center
| |
| **** | MMDC | Martins, Miragaia, Dráusio e Camargo
| |
| *** | MMDC | master message display console
| |
| *** | MMDC | Mitochondrial and Metabolic Disease Center
| |
| *** | MMDC | Multiple Module Data Computer
| |
| *** | MMDC | MAHE Manipal Dubai Campus
| |
| *** | MMDC | Micronesian Mariculture Demonstration Center
| |
| ** | MMDC | Movie Magic Discovery Channel
| |
| ** | MMDC | Middlesex Multi Door Courthouse
| |
| ** | MMDC | Massachusetts Microprocessor Design Center
| |
| * | MMDC | Midwest Mission Distribution Center
| |
| * | MMDC | Midstate Metal Detector Club
| |
| * | MMDC | Mumbai Mirror Dance Camp
| |
| * | MMDC | Mid Minnesota Development Commission
| |
| * | MMDC | Multiservice Multicarrier Distributed Communications
| |
| * | MMDC | Multi-Media and Digital Communications
| |
| * | MMDC | Microsoft Mobility Developer Conference
| |
| * | MMDC | Multi Million Dollar Club
| |
| * | MMDC | minimal metrically detectable change
| |
| * | MMDC | Missouri Mule Donkey Circuit
| |
| * | MMDC | Multimode Data Compression
| |
| * | MMDC | Multimedia and Digital Communications
| |
| * | MMDC | Middle Michigan Development Corporation
| |