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The Atlanta metropolitan area or metro Atlanta, officially designated by the US Census Bureau as the Atlanta-Sandy Springs-Marietta Metropolitan Statistical Area, is the most populous metro area in the U.S. state of Georgia and the ninth-largest metropolitan statistical area (MSA) in the United States. In addition to Atlanta, Georgia's capital and largest city, the Atlanta metropolitan area spans up to 28 counties in north Georgia and had a total 2010 population of 5,268,860.

Atlanta's larger combined statistical area (CSA) adds the Gainesville, GA MSA, and the LaGrange, GA, Thomaston GA, Cedartown, GA and Valley, AL micropolitan areas, for a total 2009 estimated population of 5,831,778. The CSA also abuts the Athens, Macon, and Columbus MSAs. The region is the central metropolis of the Southeastern United States, and is the largest metropolitan area in the emerging megalopolis known as the Piedmont Atlantic MegaRegion along the I-85 Corridor.

For media in Atlanta (which reaches most of north Georgia), the metro area became the eighth- or seventh-largest media market in the United States in 2008. According to the 2008 rankings of the ranking of world cities undertaken by the Globalization and World Cities Study Group & Network and based on the level of presence of global corporate service organizations, Atlanta is considered a "Alpha- World City".