| MCDS | Madison Country Day School 
| Others |
| MCDS | Mail Channel Directory System
| Others |
| MCDS | Maintenance Control and Display System
| Others |
| MCDS | Manhattan Chowder and Debate Society
| Others |
| MCDS | Marin Country Day School
| Others |
| MCDS | Marin County Dental Society
| Others |
| MCDS | Marine Climate Data System
| Others |
| MCDS | Marte Coastal Defence System
| Others |
| MCDS | Master of Computational Data Science
| Others |
| MCDS | Medical Command Deployment Support
| Others |
| MCDS | Metropolitan Columbus Daylily Society
| Others |
| MCDS | Miami Country Day School
| Others |
| MCDS | Migration Control Data Set
| Others |
| MCDS | Ministry of Community Development and Sports
| Others |
| MCDS | Mission-Critical Defense System
| Others |
| MCDS | Missouri Comprehensive Data System
| Others |
| MCDS | Modular Cargo Delivery System
| Others |
| MCDS | Molecular Cloning Designer Simulator
| Others |
| MCDS | Monte Carlo Damage Simulation
| Others |
| MCDS | Multi Community Diversified Services
| Others |
| MCDS | Multi Core Debug Solution
| Others |
| MCDS | Multi-function CRT (Cathode Ray Tube) Display System
| Others |
| MCDS | Multiple Covariate Distance Sampling
| Others |