Weng Tonghe (1830–1904), courtesy name Shuping, was a Chinese Confucian scholar and imperial tutor who lived in the Qing dynasty. In 1856, he obtained the position of zhuangyuan (or top scholar) in the imperial examination and was subsequently admitted to the prestigious Hanlin Academy.

Weng's father, Weng Xincun, was an official who had been persecuted by an influential faction in the Qing imperial court led by Sushun. Weng Xincun was a tutor of Daoguang Emperor's sons, Yihui and Yihe. However, in 1861, a coup took place, bringing about the deposition of Sushun and his faction, and the new government, led by Prince Gong, Empress Dowager Ci'an and Empress Dowager Cixi, placed the senior Weng to high office. Along with his role as tutor, Weng accrued increased political power, occupying several important posts in the Qing administration, including Vice President and later President of the Board of Revenue, Director of the Censorate and President of the Board of Punishments. He also served on the Grand Council 1882–84 and participated in decisions made in the First Sino-Japanese War. Weng was also known for being a patron of Kang Youwei, a man whom he began to dissociate with by the spring of 1898, and in light of this connection, it has been argued that Empress Dowager Cixi removed him from office.