| MDCN | Medicare Data Communications Network | 医疗保险数据通信网络 |
| MDCN | Medical and Dental Council of Nigeria | 尼日利亚医学和牙科委员会 |
| MDCN | Medicare Data Center Network | 医疗保险数据中心网络 |
| MDCN | Military Diplomatic Clearance Number | 军事外交许可证号码 |
| MDCN | Mobile Digital Commons Network | 移动数字公共网络 |
| MDCN | Military Diplomatic Clearance | 军事外交许可 |