King Ai of Chu (Chinese: 楚哀王; pinyin: Chǔ Āi Wáng), personal name Xiong You (Chinese: 熊猶), was a king of Chu state, reigning briefly in 228 BC. He was a son of King Kaolie and full younger brother of King You, whom he succeeded to the throne.

King Ai was murdered only two months after becoming the ruler by the supporters of his elder half-brother, Xiong Fuchu, who then took over the throne.