MCDN
| Acronym | Definition |
|---|---|
| MCDN | malariacontrol.net (volunteer computing project) |
| MCDN | MicroCellular Data Network (Ricochet wireless cellular internet service) |
| MCDN | Meridian Customer Defined Network |
| MCDN | Marine Corps Data Network |
| MCDN | Malopolskiego Centrum Doskonalenia Nauczycieli (Polish: Malopolskiego Teacher Training Center) |