Huan County or Huanxian (simplified Chinese: 环县; traditional Chinese: 環縣; pinyin: Huán Xiàn) is an administrative district in eastern Gansu province, China at the junction of three provinces: Gansu, Shaanxi to the northeast, and Ningxia to the west and northwest.

[3] Towns Townships Others Huanxian has extensive coal resources and is home to the Changqing Oilfield.

[2] The county is considered poor, due to the arid climate making agriculture difficult, and the mountainous terrain hindering transport.

[6] Parts of the Qin Great Wall are located in the south of Huanxian.

Huanxian is also known for its shadow play, which has been listed by UNESCO as intangible cultural heritage.