Zheng Jing, Prince of Yanping, courtesy names Xianzhi and Yuanzhi, pseudonym Shitian, was initially a Southern Ming military general who later became the second ruler of the Tungning Kingdom of Taiwan by succeeding his father Koxinga's hereditary title of "Prince of Yanping", reigned as a dynastic monarch of the kingdom from 1662 to 1681.

The Kingdom of Tungning, also known as Tywan by the British at the time, was a dynastic maritime state that ruled part of southwestern Taiwan and the Penghu islands between 1661 and 1683. It is the first predominantly ethnic Han state in Taiwanese history. At its zenith, the kingdom's maritime power dominated varying extents of coastal regions of southeastern China and controlled the major sea lanes across both China Seas, and its vast trade network stretched from Japan to Southeast Asia.