Yelü Lihu (911–960), courtesy name Xiyin, also known as Honggu and as Emperor Zhangsu, was an imperial prince of the Khitan Liao dynasty. As the third son of Liao's founding emperor Emperor Taizu (Yelü Abaoji) and his wife Empress Shulü Ping, Yelü Lihu served as crown prince during the reign of his older brother Emperor Taizong (Yelü Deguang), who was their second son, as Empress Shulü wanted him to be emperor after Emperor Taizong. However, after Emperor Taizong's death, their older brother Yelü Bei's son Yelü Ruan was able to defeat Yelü Lihu in battle and take the throne. Yelü Lihu was placed under house arrest and then imprisoned, dying in captivity.