General Wayne A. Downing Peoria International Airport (IATA: PIA, ICAO: KPIA, FAA LID: PIA) is a civil/military public airport five miles west of downtown Peoria, in Peoria County, Illinois, United States. It is on the northwest edge of Bartonville, near Bellevue. It is owned by the Metropolitan Airport Authority of Peoria, which often refers to it as Peoria International Airport. It was formerly the Greater Peoria Regional Airport.

The Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021 categorized it as a non-hub primary commercial service facility. Federal Aviation Administration records say the airport had 312,378 passenger boardings (enplanements) in calendar year 2017 and 328,769 in 2018.