Zeng Guofan (traditional Chinese: 曾國藩; simplified Chinese: 曾国藩; pinyin: Zēng Guófān; Wade–Giles: Tseng Kuo-fan, Styled Bóhán 伯函 and variably Díshēng 滌生; Posthumous name: Wenzheng 文正; created Marquis Yiyong of the First Class 一等毅勇侯, 世襲罔替) (November 26, 1811 – March 12, 1872) was an eminent Han Chinese official, military general, and devout Confucian scholar of the late Qing Dynasty in China.

Zeng raised the Xiang Army to fight effectively against the Taiping Rebellion and restored the stability of Qing Dynasty along with other prominent figures, including Zuo Zongtang and Li Hongzhang, setting the scene for the era later known as the "Tongzhi Restoration"（同治中兴). He was known for his strategic perception, administrative skill and noble personality on Confucianist practice, but also sometimes for his ruthlessness on the execution of his policies. Zeng also exemplified loyalty in an era of chaos, but is also regarded as a pre-cursor to the rise of warlordism.