Lü Dai (161–256), courtesy name Dinggong, was a military general of the state of Eastern Wu during the Three Kingdoms period. Following the death of Sun Quan, Zhuge Ke and Lü Dai were entrusted to govern the state. However, according to history, Lü Dai served during Sun Quan's reign as Senior General-in-Chief (上大將軍). It is said that he remained active even at an old age.