Falmouth Airpark (FAA LID: 5B6) is a public-use airport and residential airpark located four miles (6 km) northeast of the central business district of Falmouth, in Barnstable County, Massachusetts, United States. It is privately owned by Falmouth Airpark Homeowners Association.^[1] The airport grew to supersede the Coonamessett Airport which was located in close proximity to the Otis Air National Guard Base and closed in the 1960s.^[2]

Falmouth Airpark covers an area of 110 acres (45 ha).

For a 12-month period ending April 21, 2016, the airport averaged 39 operations a week: 61% local general aviation, 37% transient general aviation, 1% military, and 1% air taxi. During that same time there were 55 aircraft based on the field: 50 single engine, and 5 multi-engine aircraft.^[3]

On December 2, 2022, a Mooney M20J-201 (N3515H) crashed on approach to Falmouth Airpark. The 83-year-old pilot was killed; his passenger survived with injuries.

• List of airports in Massachusetts