Petit Jean Park Airport (IATA: MPJ, ICAO: KMPJ, FAA LID: MPJ) is a public use airport located eight nautical miles (9 mi, 15 km) west of the central business district of Morrilton, Arkansas, United States. It is owned by the State of Arkansas.

This airport is included in the FAA's National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.