Hackettstown Airport (FAA LID: N05) is a public-use airport located in the Beattystown area of Mansfield Township, Warren County, New Jersey, United States, three nautical miles (5.56 km) southwest of the central business district of Hackettstown. The airport is privately owned. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned N05 by the FAA but has no designation from the IATA.

Hackettstown Airport covers an area of 65 acres (26 ha) at an elevation of 670 feet (204 m) above mean sea level. It has one runway designated 05/23 with an asphalt surface measuring 2,200 by 50 feet (671 x 15 m).

For the 12-month period ending January 1, 2006, the airport had 19,000 aircraft operations, an average of 52 per day: 100% general aviation. At that time there were 36 aircraft based at this airport: 100% single-engine.

• Official website
• Aerial photo as of 13 April 1992 from USGS The National Map
• Resources for this airport:
  • FAA airport information for N05
  • AirNav airport information for N05
  • FlightAware airport information and live flight tracker
  • SkyVector aeronautical chart for N05