Viscount Huan of Wei , personal name Wei Ju, was a leader of the Wei clan in the Jin state, where he served as dafu (??). He succeeded his father Wei Manduo (Viscount Xiang of Wei) as clan leader.

Together with Zhao Wuxu (Viscount Xiang of Zhao) and Han Hu (Viscount Kang of Han), Viscount Huan of Wei defeated Zhi Yao (Viscount Xiang of Zhi). Afterwards the three allies divided