Li Yu, prince of the Tang Dynasty
Li Yu may refer to:

Emperor Suzong of Tang (711–762), personal name Li Yu, emperor of the Tang dynasty

Emperor Daizong of Tang (727–779), personal name Li Yu, emperor of the Tang dynasty, Emperor Suzong's son

Li Yu, Prince of Dan (died 820), Emperor Daizong of Tang's son

Li Yu, Prince of De (died 905), Emperor Zhaozong of Tang's son, briefly a puppet emperor

Li Yu (Later Tang) (died 935), chief councilor of the Later Tang dynasty

Li Yu (Southern Tang) (937–978), ruler of the Southern Tang dynasty, also a famous poet

Li Yu (author) (1610–1680), Chinese author during the Ming and Qing dynasties

Li Yu (speed skater) (born 1961), Chinese short track speed skater

Li Yu (director) (born 1973), Chinese film director and screenwriter