| Abbreviation | Definition |
|---|---|
| MDPV | Puerto Viejo, Dominican R. |
| MDQ | Mar Del Plata, Buenos Aires, Argentina |
| MDS | Middle Caicos, Turks & Caicos Islands |
| MDSA | San Juan de la Maguana, Dominican R. |
| MDSB | Sabana de La Mar, Dominican R. |
| MDSD | Santo Domingo Aeropuerto de la, Dominican R. |
| MDSI | San Isidro Air Base, Dominican R. |
| MDSJ | San Juan de la Maguana, Dominican R. |
| MDSM | Cotui-San Miguel, Dominican R. |
| MDSO | Santo Domingo Sociedad, Dominican R. |
| MDST | Santiago Cibao International, Dominican R. |
| MDT | Harrisburg International Airport, Harrisburg, Pennsylvania USA |
| MDTD | Monte Plata Tatum Dominicana, Dominican R. |
| MDU | Mendi, Papua New Guinea |
| MDV | Medouneu, Gabon |
| MDVA | La Caleta-Vista Allegre, Dominican R. |
| MDVV | Villa Vasquez, Dominican R. |
| MDW | Midway Airport, Chicago, Illinois USA |
| MDWO | Monte Cristi-Walterio, Dominican R. |
| MDX | Mercedes, CR, Argentina |