MQD

MQD or mqd can refer to:


 * Macquarie Dictionary, a dictionary of Australian English
 * Madang, a dialect of the Mainstream Kenyah language, spoken in Indonesia and Malaysia, by ISO 639 code
 * Manganoquadratite, a mineral; see List of mineral codes
 * Maquinchao Airport, an airport in Maquinchao, Argentina, by IATA code
 * Medallion Qualification Dollars, a type of frequent flier point offered in the SkyMiles program, run by American airline Delta Air Lines
 * Mirdad Muafi railway station, a train station in Pakistan