Duke Xuan of Qin

Duke Xuan of Qin (, died 664 BC), personal name unknown, was duke of the state of Qin during the Eastern Zhou dynasty from 675 to 664 BC.

Duke Xuan was the eldest of the three sons of his father Duke De and succeeded his father as ruler of Qin when Duke De died in 676 BC at the age of 34. He reigned for 12 years and died in 664 BC. Although Duke Xuan had nine sons, he passed the throne to his younger brother Duke Cheng, who would in turn pass the throne to their third brother, Duke Mu.