Southeast Georgia is an eighteen-county region within the U.S. state of Georgia, bordering Florida. The region includes a portion of Georgia's Lower Coastal Plain. Southeast Georgia's largest city is Valdosta, which forms the core of the Valdosta metropolitan area. The region's largest county by population is Lowndes, of which Valdosta is the county seat. The region had a total resident population of 416,498 in 2020.

Valdosta is a city in and the county seat of Lowndes County in the U.S. state of Georgia. As the principal city of the Valdosta metropolitan statistical area, which in 2023 had a metropolitan population of 151,118, according to the US Census Bureau its metropolitan area includes Brooks County to the west. With a city population of 55,378 in 2020, Valdosta is the home of Valdosta State University, a regional university in the University System of Georgia with over 12,000 students as of 2021.