For the surname, see
Huyan.
Hu Yan (715–629 BC) was a Di tribesman who served as a minister and general of Jin during the Spring and Autumn period of Chinese history. Hu Yan assisted Prince Chong'er (posthumously the "Wen Duke") during his long exile, his usurpation of his nephew Yu, and his rise to hegemonic status over the other states of the Zhou Kingdom. The Legalist Han Fei considered Hu Yan one of the best advisors of ancient China, and the historian Sima Qian listed him with Sun Tzu as the greatest tacticians of the age.