Nan County, or Nanxian (simplified Chinese: 南县; traditional Chinese: 南縣; pinyin: Nán Xiàn; lit.

'south county') is a county in the Province of Hunan, China, it is under the administration of the prefecture-level city of Yiyang.

Nan County covers 1,346.62 km2 (519.93 sq mi), as of 2015, it had a registered population of 683,500 and a permanent resident population of 632,800.

[4] Through the amalgamation of township-level divisions in Nan County on November 26, 2015, Nan County had 13 towns and 2 townships under its jurisdiction.

This Hunan location article is a stub.