The Big Chicken is a KFC restaurant in Marietta, Georgia, which features a 56-foot-tall (17 m) steel-sided structure designed in the appearance of a chicken rising up from the top of the building. It is located at the intersection of Cobb Parkway (U.S. 41/Georgia 3) and Roswell Road (Georgia 120) and is a well-known landmark in the area. Constructed in 1963, it was rebuilt following storm damage in 1993 and underwent a $2 million renovation project in 2017.

Marietta is a city in and the county seat of Cobb County, Georgia, United States. At the 2020 census, the city had a population of 60,972. The 2019 estimate was 60,867, making it one of Atlanta's largest suburbs. Marietta is the fourth largest of the principal cities by population of the Atlanta metropolitan area.