Cao Zishang (birth and death dates unknown) was a son of Cao Cao, a warlord who rose to power in the late Eastern Han dynasty and laid the foundation for the state of Cao Wei in the Three Kingdoms period of China. His mother was Lady Sun (孫姬), a concubine of Cao Cao. She also bore Cao Cao two other sons: Cao Biao and Cao Ziqin. Cao Zishang died early and had no son to succeed him. He was posthumously honoured as "Duke Shang of Linyi" (臨邑殤公) in 231 by Cao Rui, the second emperor of the Cao Wei state.

臨邑殤公曹子上，曹操的兒子，母親是孫姬。同母兄弟有曹勤，早薨。太和五年（231年），曹睿追封叔叔曹子上為臨邑公，謚號殤，無後。