Xiahou Wei, style name Jiquan (季权), was a military general of Cao Wei during the Three Kingdoms period of Chinese history.
The fourth son of Xiahou Yuan, and trained as a horse archer like his father, he would succeed to the head of Xiahou Yuan's troops after the Battle of Mount Dingjun. Xiahou Wei was at the forefront with his brother Xiahou Ba at the Battle of Wuzhang Plains in 234. He was also active in the suppression of Gongsun Yuan, the governor of Liaodong.
Xiahou Wei played a role of match making for Yang Hu, marrying his niece, Xiahou Ba's daughter to Yang. A fortune teller named Zhu Jianping (朱建平) told Xiahou Wei that he would face life threatening situation when he turned 49, and if he endured, he would live up to 70. After Xiahou Wei turned 49, he became very ill in early December, and remembering what the fortune teller had said, Xiahou Wei believed his time had come and asked family members to prepare for the funeral. However, in late December, Xiahou Wei appeared to all right, so he ordered a huge banquet to invite guests to feast on December 30, claiming that the fortune teller was not right. However, after the feast, Xiahou Wei became very ill again and died.