Forest Park is a city in Clayton County, Georgia, United States. It is located approximately nine miles (14 km) south of Atlanta and is part of the Atlanta–Sandy Springs–Marietta Metropolitan Statistical Area. As of the 2020 census, the city had a population of 19,932.

Clayton County is located in the north central portion of the U.S. state of Georgia. As of 2021, the population was estimated to be 297,100 by the Census Bureau. The county seat is Jonesboro.