Zheng Ji (simplified Chinese: 郑吉; traditional Chinese: 鄭吉; Wade–Giles: Cheng Chi, died 49 BC), born in Shaoxing, Zhejiang, was a general during the Han dynasty, and served the first Protector General of the Western Regions in 60 BC.

• Battle of Jushi

• Li, Bingquan and Zhao, Hongyan. "Handai Shouren Xiyu Duhu Zheng Ji" ("The First Protector General of the Western Regions Zheng Ji"). Chinese Literature and History. 2004.12. ISSN 1002-9869.