Gulfport–Biloxi International Airport (IATA: GPT, ICAO: KGPT, FAA LID: GPT) is a joint civil–military public-use airport three nautical miles (6 km) northeast of the central business district of Gulfport, a city in Harrison County, Mississippi, United States. It is owned by the Gulfport–Biloxi Regional Airport Authority and serves the Gulf Coast area.

This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport (more than 10,000 enplanements per year). As per Federal Aviation Administration records, the airport had 487,907 passenger boardings (enplanements) in calendar year 2008; 411,978 enplanements in 2009; and 325,437 emplacements in 2014. Despite its title, all regularly scheduled commercial passenger flights at the airport are domestic flights only.