Calverton Executive Airpark (IATA: CTO, FAA LID: 3C8, formerly CTO) also known as Peconic River Airport and Enterprise Park at Calverton (EPCAL) was a public-owned private-use airport located three miles (5 km) west of the central business district of the Calverton hamlet, in the Town of Riverhead, Suffolk County, New York, United States. It is owned by the Town of Riverhead.

It was formerly the Naval Weapons Industrial Reserve Plant, Calverton which was owned by the United States Navy and used to assemble, test, refit and retrofit jets built by the Grumman Corporation on Long Island.

The airport covers an area of 2,921 acres (1,182 ha) which contains two asphalt and concrete runways: 14/32 measuring 10,000 by 200 feet (3,048 m × 61 m) and 5/23 measuring 7,000 by 200 feet (2,134 m × 61 m).

The airport was lightly used for air traffic in lieu of the nearby Francis S. Gabreski Airport. Its last remaining air client, Skydive Long Island, relocated to Brookhaven Calabro Airport in 2015.

In 2021, The Town Board of Riverhead approved the airport to be the venue of Division 1 National Hot Rod Association (NHRA) drag racing events. The airport held inaugural NHRA drag racing events in Summer 2021.