Hanshan County (simplified Chinese: 含山县; traditional Chinese: 含山縣; pinyin: Hánshān Xiàn) is a county in the east of Anhui Province, People's Republic of China under the jurisdiction of the prefecture-level city of Ma'anshan.

It has a population of 336,588 in 2020 and an area of 1,028 square kilometres (397 sq mi).

The government of Hanshan County is located in Huanfeng Town.

Hanshan County has jurisdiction over eight towns.

[1] Hanshan South railway station is situated here.