Xi Chou 郤犨 (died 574 BCE), also called Xi Zhou 郤州 or Ku Chengshu 苦成叔, was a nobleman of the house of Xi 郤 in the state of Jin 晉 during the Spring and Autumn period 春秋 (770-5th cent. BCE).
He was a nephew of Xi Que 郤缺, a son of Xi Yang 郤揚 and a great-grandson of Xi Bao 郤豹 and served Duke Jing 晉景公 (r. 600-581) as a minister.
Xi Chou was known as strong in disputations, endowed with wit and politeness. His own territory was Xiangling 襄陵, but he had a territorial dispute with Changyu Jiao 長魚矯. Duke Li 晉厲公 (r. 581-573) used this chance to get rid of the "Three Xi" 三郤 (the others being Xi Qi 郤錡 and Xi Zhi 郤至) and ordered Xu Tong 胥童, Changyu Jiao and Yiyang Wu 夷陽五 to kill Xi Chou.