Chen Sou was a Chinese historian, politician, and writer who lived during the Three Kingdoms period and Jin dynasty of China. Chen Shou is best known for his most celebrated work, the Records of the Three Kingdoms (Sanguozhi), which records the history of the late Eastern Han dynasty and the Three Kingdoms period. Chen Shou wrote the Sanguozhi primarily in the form of biographies of notable persons of those eras. Today, Chen's Records of the Three Kingdoms is part of the Twenty-Four Histories canon of Chinese history.
He started his career as an official in the state of Shu during the Three Kingdoms era but was demoted and sent out of the capital for his refusal to fawn on Huang Hao, an influential court eunuch in Shu in its twilight years. After the fall of Shu in 263, Chen Shou's career entered a period of stagnation before Zhang Hua recommended him to serve in the Jin government. He held mainly scribal and secretarial positions under the Jin government before dying from illness in 297. He had over 200 writings – about 30 of which he co-wrote with his relatives – attributed to him.