Dongzhi County (simplified Chinese: 东至县; traditional Chinese: 東至縣; pinyin: Dōngzhì Xiàn) is a county in the south of Anhui province, situated on the southeast (right) bank of the Yangtze and bordering Jiangxi province to the south.

It is under the jurisdiction of the prefecture-level city of Chizhou and occupies its southwest corner.

The government of Dongzhi County is located in Yaodu Town.

In paleontology, it is known for its Hualong Cave in which important human (called the Hualongdong people[1]) and animal fossils have been discovered,[2][3] including Homo erectus (dubbed Dongzhi Man)[4] and a 300,000-year-old archaic human (Homo sapiens).

[6] Towns: – Former Towns: Townships: The village of Nanxiguzhai, nestled deep among the hills, is well known as the dwelling place of the descendants of a tribe of the Xiongnu people, better known in the West as the Huns.