King Su of Chu

King Su of Chu (, died 370 BC) was the king of the state of Chu from 380 BC to 370 BC during the Warring States period of ancient China. He was born Xiong Zang and King Su was his posthumous title. King Su succeeded his father King Dao of Chu, who died in 381 BC.

Upon his accession to Chu's throne, King Su executed more than seventy families who had participated in the murder of Wu Qi and the insulting of King Dao of Chu's corpse. However, he also abolished Wu Qi's reformist policies.

During his rule, King Su fought with two of the three Jin states, Han and Wei. In 375 BC, Han conquered the state of Zheng which had been in alliance with Chu for centuries.

King Su died in 370 BC after 11 years of reign. Since he had no sons, his younger brother Xiong Liangfu ascended the throne and is known as King Xuan of Chu.