Wen County or Wenxian (simplified Chinese: 温县; traditional Chinese: 溫縣; pinyin: Wēn Xiàn) is a county under the administration of the prefecture-level city of Jiaozuo, in the northwest of Henan Province.

Wen County lies on the left or north bank of the Yellow River, opposite the county-level cities of Gongyi and Xingyang in the Zhengzhou municipality.

On all other sides the county is bordered by constituent parts of Jiaozuo: upriver to its west lies Mengzhou City, inland to its north Qinyang City and Bo'ai County, downriver to its east Wuzhi County.

The county comprises 7 towns and 3 townships, overseeing 262 village committees and 5 neighbourhoods (社区; shèqū).

The county executive, legislature and judiciary are in Wenquan (温泉镇), together with the CPC and PSB branches.