Adak Airport (IATA: ADK, ICAO: PADK, FAA LID: ADK) is a state-owned public-use airport located west of Adak, on Adak Island in the Aleutian Islands in the U.S. state of Alaska. The airport is the farthest western airfield with scheduled passenger air service in the entire United States at 176.64W.

Adak's airport is one of the largest airports in the Aleutian Islands. Built by the U.S. Navy for Naval air transport, the airport consists of a 7,800-foot (2,400 m) runway and a 7,600-foot (2,300 m) runway (perm closed fall 2015), equipped with an Instrument Landing System and glideslope which facilitate Instrument Flight Rules landings. Adak currently has scheduled jet service, every Wednesday and Saturday, provided by Alaska Airlines.

As per the Federal Aviation Administration, this airport had 1,989 passenger boardings (enplanements) in calendar year 2008, 1,907 in 2009, and 2,097 in 2010. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation facility (the commercial service category requires at least 2,500 enplanements per year).