Cao Gong (died 223) was a prince in the state of Cao Wei in the Three Kingdoms period of China. He was a son of Cao Pi (Emperor Wen), the founding emperor of Cao Wei. His mother, Consort Zhang (張姬), was a concubine of Cao Pi.(文皇帝九男： ... 張姬生清河悼王貢， ...) Sanguozhi vol. 20. He was enfeoffed as the Prince of Qinghe (清河王) in 222. After his death in the following year, his princedom was abolished because he had no son to inherit it.(清河悼王貢，黃初三年封。四年薨。無子。國除。) Sanguozhi vol. 20.
See also Cao Wei family trees#Consorts Li, Su, Zhang, and Song Lists of people of the Three Kingdoms
References
Chen, Shou (3rd century). Records of the Three Kingdoms (Sanguozhi).