What is "yixian"

Yixian may refer to :

• Yi County, Anhui, in China
• Yi County, Hebei, in China
• Yi County, Liaoning, in China
• the Latin Catholic Apostolic Prefecture of Yixian, near Beijing and Baoding
• Yi County, Shandong, now Yicheng District, Zaozhuang
• Yixian Formation, a geological formation in Liaoning Province

• Empress Yixian, Liang Nüying (died 159), Chinese empress during the Han Dynasty