| MCDC | Madison Cooperative Development Coalition 
| Others |
| MCDC | Madison County Drug Court
| Others |
| MCDC | Malaria Capacity Development Consortium
| Others |
| MCDC | Mandalay City Development Committee
| Others |
| MCDC | Marshall Child
| Others |
| MCDC | Marshall Child Development Center
| Others |
| MCDC | Maverick County Development Corporation
| Others |
| MCDC | McKinney Community Development Corporation
| Others |
| MCDC | Medical CBRN Defense Consortium
| Others |
| MCDC | Mesa Child Development Center
| Others |
| MCDC | Michigan Certified Development Corporation
| Others |
| MCDC | Michigan Community Dental Clinics
| Others |
| MCDC | Midland Community Development Corporation
| Others |
| MCDC | Millvale Community Development Corporation
| Others |
| MCDC | Milton Collins Day Camp
| Others |
| MCDC | Minuteman Civil Defense Corps
| Others |
| MCDC | Missouri Census Data Center
| Others |
| MCDC | Mobile Cup Dispensing Cart
| Others |
| MCDC | Modified Condition Decision Coverage
| Others |
| MCDC | Montana Chemical Dependency Center
| Others |
| MCDC | Montana Community Development Corporation
| Others |
| MCDC | Montana Cooperative Development Center
| Others |
| MCDC | Montclair Child Development Center
| Others |
| MCDC | Montessori Child Development Center
| Others |
| MCDC | Montgomery County Democratic Committee
| Others |
| MCDC | Montgomery County Detention Center
| Others |
| MCDC | Most Classified Developing Countries
| Others |
| MCDC | Movement Community Development Corporation
| Others |
| MCDC | Movsa Career Development Club
| Others |
| MCDC | Muhlenberg Community Dance Center
| Others |
| MCDC | Multinational Capability Development Campaign
| Others |
| MCDC | Multiprogram Computational Data Center
| Others |
| MCDC | Multnomah County Detention Center
| Others |
| MCDC | Municipalities Continuing Disclosure Cooperation
| Others |
| MCDC | Muscat City Desalination Company
| Others |
| MCDC | Music Choice Dance Channel
| Others |
| MCDC | Music City Distance Carnival
| Others |
| MCDC | Music City Drum Corps
| Others |
| MCDC | My Community Dental Centers
| Others |