Griswold Airport (IATA: MPE, FAA LID: N04) was a public airport located three nautical miles (6 km) east of the central business district of Madison, a town in New Haven County, Connecticut, United States.

In 1969, the Town of Madison paid to pave runway 6/24, in return for the owner's promise to maintain the property as an airport.

A lawsuit against the town to stop the development failed, but local opposition was so strong that Leyland withdrew its original proposal.

There was also a turf runway designated 4/22, about 1,150 by 50 feet (350 x 15 m);[note 1] and a seaplane ramp between the river and the northeast corner of the airport.

For the 12-month period ending December 31, 2005, the airport had 3,000 general aviation aircraft operations, an average of 57 per week.