Yang Maosou (died 317), was the founding ruler of the Di-led Chouchi state during the Sixteen Kingdoms period of China.
Their ancestors initially lived in Qingshui County, Lüeyang Commandery, but during the reign of Yang Ju (楊駒) in the early 3rd-century, they moved to the Chouchi region.
[9] Later, Emperor Min of Jin legitimized Maosou's authority by appointing him General of Agile Cavalry and Worthy Prince of the Left.
Maosou's son, Yang Nandi, was also appointed General Who Attacks the South by the Prince of Nanyang, Sima Bao.
Nandi defeated Zhang Guang and briefly controlled Hanzhong before being ousted back to Chouchi by a local revolt in 314.