Cook County is a county located in the south central portion of the U.S. state of Georgia. As of the 2020 census, the population was 17,229. The county seat is Adel. The constitutional amendment to create the county was proposed July 30, 1918, and ratified November 5, 1918. It is named for former Civil War general Philip Cook of the Confederate States Army.

Adel is a city in and the county seat of Cook County, Georgia, United States, located fifty-two miles (84 km) southeast of Albany. As of the 2020 census, the city had a population of 5,571.