Pei Judao (裴居道; died July 22, 690[1]) was a general and official of the Chinese Tang dynasty, serving as a chancellor during the first reign of Emperor Ruizong.
It is not known when Pei Judao was born, but it is known his family was from Jiang Prefecture (絳州, part of modern Yuncheng, Shanxi).
Later that year, he was made Neishi (內史)—the head of the legislative bureau of government (鳳閣, Fengge) and a post considered one for a chancellor.
In 687, he was made Nayan (納言)—the head of the examination bureau of government (鸞臺, Luantai), also a post considered one for a chancellor.
For reasons lost to history, Pei was accused by secret police and imprisoned, finally executed.