Guowei Xu (Hànzì: 徐国維, Pinyin: Xú Guówéi, On'yomi: Jo Kokui) is a character in Shenmue III. He is an old stonemason in Bailu Village and Yunshen Yuan's best friend. He used to live near the Sunflower Grove and was adbucted by Yanlang's thugs alongside Shenhua's adoptive father to Niaowu.
Xu's house is located near the Sunflower Grove of Bailu. During his search for clues, Ryo enters the old stonemason's house, only to find it empty. At the end of the game, Ryo and Shenhua free Xu from his cell in the old castle of Niaowu.