Unadilla is a city in Dooly County, Georgia, United States. The population was 3,118 in 2020. Dooly State Prison is located in the northeast corner of the city.

Unadilla is a name derived from the Iroquois language meaning "council place".^[4] The Georgia General Assembly incorporated Unadilla as a town in 1891.^[5]

Unadilla is located in northern Dooly County at 32°15′35″N 83°44′12″W.^[6] 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. Interstate 75 passes through the west side of Unadilla, with access from Exits 121 and 122. I-75 leads north 43 miles (69 km) to Macon and south 61 miles (98 km) to Tifton. 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.

Since 2017, Unadilla has been home to an annual New Year's Eve event entitled the Hog Drop, an evening celebration to ring in the new year.^[9] The event occurs in tandem with the Hog Drop Invitational BBQ competition, hosted and run by Unadilla mayor and BBQ pitmaster Myron Mixon. The event includes live music, fireworks, pig racing, and other family-friendly events.^[10] The event culminates in the lowering of a pig-shaped sign at the stroke of midnight, the action of which gives the event its name.

• David Ragan, NASCAR Cup Series driver
• Ken Ragan, former NASCAR and ARCA driver.
• Myron Mixon, five-time World BBQ Champion and mayor.