Greensburg Municipal Airport (FAA LID: I34) is a public use airport located two nautical miles (4 km) southwest of the central business district of Greensburg, a city in Decatur County, Indiana, United States. Owned by the Greensburg-Decatur County Board of Aviation Commissioners, it was formerly known as Greensburg-Decatur County Airport. It is included in the National Plan of Integrated Airport Systems for 2017–2021, which categorized it as a general aviation facility.