Dai Zhide (戴至德) (died March 16, 679[1]), formally Duke Gong of Dao (道恭公), was an official of the Chinese Tang dynasty, serving as chancellor during the reign of Emperor Gaozong.
Not much is known about much of Dai Zhide's career as an imperial official, although it was known that he was serving as an assistant to Li Hong, the son and crown prince of Emperor Taizong's son and successor Emperor Gaozong in 671, when Emperor Gaozong and his wife Empress Wu (later known as Wu Zetian) left the capital Chang'an and took up residence at the eastern capital Luoyang, rarely returning to Chang'an thereafter.
Emperor Gaozong left Li Hong in charge of Chang'an, but because Li Hong was often ill, it was said that the major decisions were largely made by Dai and his colleagues Zhang Wenguan and Xiao Dezhao (蕭德昭).
In 675, Dai became Puye, a co-head of the important examination bureau of government (尚書省, Shangshu Sheng), serving with the famed general Liu Rengui.
Dai died in 679, and Emperor Gaozong sent the imperial officials to his house to mourn him.