Atlanta Speedway Airport (ICAO: KHMP, FAA LID: HMP)(formerly 4A7), is a public-use airport located three nautical miles (6 km) west of the central business district of Hampton, a city in Henry County, Georgia, United States. It was known as Clayton County Airport – Tara Field, which was the name still used by the Federal Aviation Administration (FAA) and the Georgia Department of Transportation (GDOT) until 2011. The airport was renamed Atlanta South Regional Airport, which was approved by the airport board of commissioners in December 2011, and was approved by the GDOT and the FAA before it went into effect. It was also known as Henry County Airport from 2013 to 2017.

Although the airport is located in Henry County, it was owned and operated by Clayton County to the north from 1992 until 2011. It is not near most of that county, except for its very small southern tip. The north end of Clayton County has part of Hartsfield-Jackson Atlanta International Airport, thus Tara Field served general aviation, especially for the Atlanta Motor Speedway immediately next to it. At its July 12, 2011, meeting, the Clayton County Board of Commissioners voted to sell the airport to Henry County in a deal worth $17.7 million. The Henry County Board of Commissioners agreed to the purchase at a meeting on July 13, 2011, and the sale was completed in August 2011. Henry County paid just $2.7 million toward the purchase price, with the Federal Aviation Administration and the Georgia Department of Transportation funding the balance of $15 million.