Lovejoy is a city in Clayton County, Georgia, United States. During the American Civil War, it was the site of the Battle of Lovejoy's Station during the Atlanta Campaign of 1864. Lovejoy was incorporated as a town on September 16, 1861. As of 2020, its population was 10,122. It has an African American majority. Lovejoy is proposed by the Georgia Department of Transportation and MARTA to be the endpoint of metro Atlanta's first commuter rail line.