Wiman (flourished c. 190 bc) Chinese general, or possibly a Korean in Chinese service, who took advantage of the confusion that existed around the time of the founding of the Han dynasty in China to usurp the throne of the Korean state of Chosŏn. He moved the capital to the present-day site of P’yŏngyang on the Taedong River, dominating the area on the Korean-Manchurian border, and extended his influence down the Korean peninsula.