| Abbreviation | Definition |
|---|---|
| MDCS | Santo Domingo ACC, Dominican R. |
| MDCZ | Constanza, Dominican R. |
| MDDJ | Dajabon, Dominican R. |
| MDE | Medellin, Colombia |
| MDEP | La Vega-El Ponton, Dominican R. |
| MDER | La VegaEl Ranchito, Dominican R. |
| MDES | Esperanza, Dominican R. |
| MDEV | El Valle, Dominican R. |
| MDF | Medford, Wisconsin USA |
| MDG | Mudanjiang, Mainland China |
| MDGM | Santo Domingo Granja Mora, Dominican R. |
| MDH | Southern Illinois Airport, Carbondale, Illinois USA |
| MDHE | Santo Don Herrera, Dominican R. |
| MDHN | Enriquillo, Dominican R. |
| MDI | Makurdi, Nigeria |
| MDIA | La Vega-Induveca, Dominican R. |
| MDIQ | San Pedro de Macoris Ing. Quis, Dominican R. |
| MDJ | Madras City-County Municipal Airport, Madras, Oregon USA |
| MDJ | Madras, Oregon USA |
| MDJI | Jimani, Dominican R. |