Dooly County is a county located in the central portion of the U.S. state of Georgia. As of the 2020 census, the population was 11,208. The county seat is Vienna. The county was created by an act of the Georgia General Assembly on May 15, 1821, and named for Colonel John Dooly, a Georgia American Revolutionary War fighter. It was one of the original landlot counties created from land ceded from the Creek Nation.

The city of Vienna is the county seat of Dooly County, Georgia, United States. The population was 2,928 in 2020. Vienna is situated on the Flint River. It was established as Berrien in 1826. In 1833, its name was changed to Drayton. In 1841, it was renamed Vienna. Vienna was disincorporated at the time they changed the city's name to Vienna. The present name is after Vienna, in Austria.