Li Yi, Li-yi or Liyi may refer to:

• Li Yi (poet) (746/748–827/829), Tang dynasty poet
• Emperor Xuānzong of Tang (810–859), name Li Yi, Chinese emperor of the Tang Dynasty
• Hermengild Li Yi (1923–2012), Chinese Roman Catholic bishop
• Li Yi (sociologist) (born 1961), Chinese sociologist
• Li Yi (footballer) (born 1979), Chinese football player and coach
• Yi Li (basketball) (born 1987), Chinese basketball player
• Li Yi (wushu) (born 1992), Macau wushu practitioner
• Li Yi (voice actor) (1963–2013), Chinese voice actor and announcer
• Li Yi (composer), the Singapore film composer who worked on Homerun and I Not Stupid
• Liyi, a former country of the Fergana, a substate of Kangju
• Liyi, a set of Traditional Chinese law practices
• Liyi, a township in Shanxi, see List of township-level divisions of Shanxi