Yang Ding (died 394) was a ruler of Chouchi and a military general of Former Qin during the Sixteen Kingdoms period. His family was a part of the Yang clan that ruled Chouchi but fled to Former Qin after they failed to usurp their relatives' throne. Yang Ding became the son-in-law of Fu Jian and after the Battle of Feishui and the subsequent revolts that took place, Yang Ding greatly contributed to the state's survival until his death in 394. However, he also held independent power after Fu Pi ascended the throne, and Yang Ding took the opportunity to restore Chouchi in 385, returning its existence after it had been conquered by Qin in 371 and beginning the period of Later Chouchi.