Huntsville Executive Airport (ICAO: KMDQ, FAA LID: MDQ, formerly M82), also known as Tom Sharp Jr. Field and formerly Madison County Executive Airport, is a public-use airport in Madison County, Alabama, United States. It is owned by the Executive Flight Center and located eight nautical miles (14.80 km) northeast of the central business district of Huntsville. According to the FAA's National Plan of Integrated Airport Systems for 2009–2013, it is categorized as a general aviation facility.

Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Huntsville Executive Airport is assigned MDQ by the FAA but has no designation from the IATA (which assigned MDQ to Mar del Plata, Argentina).