|Country||People's Republic of China|
|• Total||1,885.3 km2 (727.9 sq mi)|
|Time zone||UTC+8 (China Standard)|
Xiao County or Xiaoxian (simplified Chinese: 萧县; traditional Chinese: 蕭縣; pinyin: Xiāo Xiàn) is a county in the north of Anhui Province, China, bordering the provinces of Jiangsu to the north and northeast and Henan to the west. It is under the administration of the prefecture-level city of Suzhou. It was formerly part of Jiangsu province, under the administration of Xuzhou. It became part of Anhui province in 1950.
In the present, Xiao County has 18 towns and 5 townships.