|Country||People's Republic of China|
|County seat||Mingzhou Town (洺州镇)|
|• Total||994 km2 (384 sq mi)|
|Elevation||37 m (121 ft)|
|• Density||540/km2 (1,400/sq mi)|
|Time zone||UTC+8 (China Standard)|
Wei County or Weixian (simplified Chinese: 威县; traditional Chinese: 威縣; pinyin: Wēi Xiàn) is a county in the south of Hebei province, China. It is under the administration of the prefecture-level city of Xingtai, with a population of 540,000[when?] residing in an area of 994 km2 (384 sq mi). It is served by G45 Daqing–Guangzhou Expressway and China National Highway 106.
Wei County consists of 5 towns and 11 townships.