Huangfu Duan is a fictional character in Water Margin, one of the Four Great Classical Novels in Chinese literature.
Huangfu Duan has green eyes and a long yellow beard, which suggest he might be of non-Han or mixed ancestry.
He is recommended to Song Jiang by Zhang Qing, who is captured and won over by Liangshan, which has come to Dongchang to seize its grain stock.
Huangfu Duan is appointed as the veterinarian in charge of all the livestock of Liangshan, particularly horses, after the 108 Stars of Destiny came together in what is called the Grand Assembly.
He participates in the campaigns against the Liao invaders and rebel forces in Song territory following amnesty from Emperor Huizong for Liangshan.