Dai Xu (Chinese: 戴旭; pinyin: Dài Xù; born 30 September 1964) is a Chinese author, social commentator, and the president of the Marine Institute For Security And Cooperation ( 海洋安全与合作研究院).
Xu Da (1332–1385), courtesy name Tiande, known by his title as Duke of Wei (魏國公), later posthumously as Prince of Zhongshan (中山王), was a Chinese military general and official who lived in the late Yuan dynasty and early Ming dynasty.