Lü Ju (died 256), Shiyi (世議), was a military general of the state of Eastern Wu during the Three Kingdoms period of Chinese history. He was the second son of Lü Fan. When the Wei army invaded Wu's territory after the death of Sun Quan, Lü Ju went out to battle along with Dong Xing, under the command of Ding Feng. Lü Ju later committed suicide after being cornered by Sun Jun.