Marshall Don Hunter Sr. Airport (IATA: MLL, ICAO: PADM, FAA LID: MDM, formerly 3A5) is a state-owned public-use airport located two nautical miles (3.7 km) southeast of the central business district of Marshall, a city in the Kusilvak Census Area of the U.S. state of Alaska.

Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Marshall Don Hunter Sr. Airport is assigned MDM by the FAA and MLL by the IATA (which assigned MDM to Munduku, Papua New Guinea).