Machias Valley Airport (ICAO: KMVM, FAA LID: MVM) is a town owned, public use airport located one nautical mile (2 km) southwest of the central business district of Machias, a town in Washington County, Maine, United States. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility. The airport was once served by commercial airline service on Northeast Airlines.

Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned MVM by the FAA but has no designation from the IATA (which assigned MVM to Kayenta Airport in Kayenta, Arizona). The airport's ICAO identifier is KMVM.