Liu Yun, Chinese governor (jiedushi)

Liu Yun, probably known as Liu Chengyun before 949, referred to in historical sources as the Duke of Xiangyin (湘陰公), was a military governor of the Later Han dynasty during the Five Dynasties period. He was an ethnic Shatuo.

The jiedushi or jiedu, was a regional military governor in China; the title was established in the Tang dynasty and abolished in the Yuan dynasty. The post of jiedushi has been translated as "military commissioner", "legate", or "regional commander". Originally introduced in 711 to counter external threats, the jiedushi were posts authorized with the supervision of a defense command often encompassing several prefectures, the ability to maintain their own armies, collect taxes and promote and appoint subordinates.