Zhao Renben (趙仁本) was an official of the Chinese Tang dynasty, serving as chancellor during the reign of Emperor Gaozong.
Zhao Renben was from Shan Prefecture (陝州, roughly modern Sanmenxia, Henan) – but from Hebei County (河北) – the part of Shan Prefecture that was north of the Yellow River (i.e., in modern Shanxi).
Upon his return, because he handled the matters appropriately, he was promoted to be a mid-low level official at the ministry of civil service.
As of 667, during the reign of Emperor Taizong's son and successor Emperor Gaozong, Zhao was serving as deputy minister of civil service as well as an advisor at the examination bureau of government (東臺, Dong Tai), when he was given the designation Tong Dong Xi Tai Sanpin (同東西臺三品), making him a chancellor de facto.
Zhao refused, and in 670, when Zhao had also been given a position on the staff of Emperor Gaozong's crown prince Li Hong, he was made a secretary general of the executive bureau (中臺, Zhong Tai) and no longer a chancellor.