, or the United States Penitentiary, Atlanta, is a medium-security federal prison for male inmates located in Atlanta, Georgia. Operated by the Federal Bureau of Prisons, it also includes a detention center and a minimum-security satellite camp. Opened in 1902, USP Atlanta has served various roles over the years, including housing pretrial detainees and long-term federal inmates. It is known for its large population and historical significance, having once been one of the largest federal prisons in the United States. The facility provides inmates with access to educational programs, work assignments, and limited vocational training.