Liu Yin (劉隱) (874[3] – 4 April 911[4][5]), formally Prince Xiang of Nanhai (南海襄王), later further posthumously honored Emperor Xiang (襄皇帝) with the temple name of Liezong (烈宗) by his younger brother Liu Yan, was a warlord late in the Chinese Tang dynasty and Tang's succeeding dynasty Later Liang of the Five Dynasties and Ten Kingdoms period, who ruled Qinghai Circuit (清海, headquartered in modern Guangzhou, Guangdong) as its military governor (Jiedushi).
Liu Qian eventually came to control Feng Prefecture (封州, in modern Zhaoqing, Guangdong) as its prefect.
Thereafter, then-military governor of Lingnan East, Liu Chonggui (劉崇龜), made him a Lingnan East officer and gave him one of the titles that Liu Qian held, the defender of Heshui Base (賀水鎮, in modern Nanning, Guangxi).
[13] Emperor Zhaozong subsequently commissioned Cui Yuan, but when Cui reached Jiangling, he heard that Qinghai was overrun by bandits and also feared that Liu would not yield authority to him, and therefore requested recall to the imperial government; Emperor Zhaozong agreed and did so, but did not name Liu military governor at that time.
[15] In 904, by which time the powerful warlord Zhu Quanzhong the military governor of Xuanwu Circuit (宣武, headquartered in modern Kaifeng, Henan) was in effective control of the imperial government, having assassinated Emperor Zhaozong and replaced him with his son Emperor Ai, Liu Yin bribed Zhu and requested to be commissioned military governor.
[14] In 905, Emperor Ai bestowed the honorary chancellor designation of Tong Zhongshu Menxia Pingzhangshi (同中書門下平章事) on Liu Yin.
He gave Liu Yin the greater honorary chancellor title of Shizhong (侍中) and created him the Prince of Dapeng.
[17] Also in 908, Later Liang's Emperor Taizu sent the officials Zhao Guangyi (趙光裔) and Li Yinheng (李殷衡) as emissaries to Liu to commission him as the military governor of both Qinghai and Jinghai (靜海, headquartered in modern Hanoi, Vietnam) Circuits.
Liu accepted the commissions but then detained Zhao and Li and did not permit them to return to the Later Liang court.