180s–190s), courtesy name Zitai, was a military general and minor warlord who lived during the late Eastern Han dynasty of China.
In 194, Yuan Shu ordered Sun Ce, then serving under him, to lead troops to attack Lujiang Commandery (廬江郡; around present-day Lu'an, Anhui) and seize it from its Administrator (太守), Lu Kang.
Around 199, Liu Xun had become a minor warlord in the Southern Huai River region with a sizeable army under his command.
Sun Ce, who had conquered territories in the Jiangdong region after leaving Yuan Shu, planned to seize control of Lujiang Commandery from Liu Xun.
He sent a messenger to meet Liu Xun and seek his assistance in attacking Shangliao (上繚; southeast of present-day Xiushui County, Jiangxi).
As the messenger brought him gifts and spoke to him in a flattering tone, Liu Xun was so pleased that he readily agreed to help Sun Ce.