Lü Dai (161–256), style name Dinggong, is a general of the state of Eastern Wu during the Three Kingdoms period.

Following the death of Sun Quan, Zhuge Ke and Lü Dai are entrusted to govern the state.

However, according to history, Lü Dai serves during Sun Quan's reign as Senior General-in-Chief.

It is said that he remains active even at an old age.