| MCDR | Macomb County Department of Roads 
| Others |
| MCDR | Manitoba Coordinated Disease Response
| Others |
| MCDR | Maronite Center for Documentation and Research
| Others |
| MCDR | Maryland Council for Dispute Resolution
| Others |
| MCDR | Maternal and Child Death Review
| Others |
| MCDR | Maternal Child Death Review
| Others |
| MCDR | Merged Call Detail Record
| Others |
| MCDR | Meridian Cabinet Digital Remote Frame
| Others |
| MCDR | Mineral Conservation and Development Rules
| Others |
| MCDR | Misr for Central Clearing, Depository, and Registry
| Others |
| MCDR | Missing Children Dynamics Response
| Others |
| MCDR | Modern Conflict Diplomacy and Reconciliation
| Others |