Unadilla is a city in Dooly County, Georgia, United States.

Dooly State Prison is located in the northeast corner of the city.

[7] U.S. Route 41 passes through the center of town as Pine Street, leading north 16 miles (26 km) to Perry and south 13 miles (21 km) to Vienna, the Dooly County seat.

Georgia State Route 230 passes through Unadilla as Second Street and Borum Street, leading southwest 11 miles (18 km) to Byromville and east 18 miles (29 km) to Hawkinsville.

As of the 2020 United States census, there were 3,118 people, 938 households, and 573 families residing in the city.