Bian Xi (died 200) is a fictional character in Luo Guanzhong's historical novel Romance of the Three Kingdoms. He was said to be a former Yellow Turban rebel who later surrendered to the warlord Cao Cao. During the Battle of Guandu in 200, Bian was tasked with guarding Sishui Pass (north of present day Xingyang, Henan). He was killed by Guan Yu during an attempted plot to assassinate the latter.
Read more about Bian Xi: Role in Romance of The Three Kingdoms