The Old Fourth Ward, often abbreviated O4W, is an intown neighborhood on the eastside of Atlanta, Georgia, United States. The neighborhood is best known as the location of the Martin Luther King Jr. historic site.

Eastside refers to the city district comprising the easternmost portion of Atlanta, Georgia, United States. The Eastside generally encompasses the area bounded on the west by Midtown Atlanta and Downtown Atlanta and on the east by the city limits. The central corridor of the district is the BeltLine Eastside Trail, which connects northern Eastside neighborhoods with those to the south. The Eastside is known for its nightlife establishments, craftsman architecture, local eateries, and quirky public art.