Ji Ben (died 218) was an imperial physician who lived during the late Eastern Han dynasty of China.

In 218, he started a rebellion with several others in the imperial capital, Xu (許; present-day Xuchang, Henan), but the revolt was suppressed and the conspirators were captured and executed.

In 216, Emperor Xian granted Cao Cao the title of a vassal king – King of Wei (魏王) – and allowed him to establish a vassal kingdom in northern China which was still nominally under the Han administration.

[1] In late 217 or early 218, Ji Ben plotted a rebellion in the imperial capital, Xu (許; present-day Xuchang, Henan), together with several others, including: Geng Ji (耿紀), a Minister Steward (少府); Wei Huang (韋晃), a Director of Justice (司直); Jin Yi; his sons Ji Miao (吉邈; courtesy name Wenran (文然)) and Ji Mu (吉穆; courtesy name Siran (思然)).

With assistance from Yan Kuang (嚴匡), an Agriculture General of the Household (典農中郎將), Wang Bi succeeded in suppressing the revolt when he led troops back to his camp to attack the rebels and defeated them.

Cao Cao even orders Ji Ping to be tortured in the presence of Dong Cheng and the others (excluding Liu Bei, who had already left the capital), who eventually admit to their roles in the assassination plot.