Li Dashi (李大師) (570–628), born in Anyang, was a Chinese historian, and an officer during the Sui and Tang dynasties. He began the History of the Northern Dynasties and History of the Southern Dynasties, which were completed by his son, Li Yanshou (李延寿).

李大師（570年 - 628年），字君威，相州（今河南安陽）人，祖籍隴西狄道（今甘肅省臨洮縣），出自隴西李氏姑臧房，是北魏龍驤將軍、滎陽太守、姑臧穆侯李承的玄孫，北魏驃騎大將軍、開府儀同三司、高平宣景男李虔的曾孫，北齊廣武東二郡太守李曉的孫子，隋朝清江洛陽二縣縣令李仲舉的長子，李行師的哥哥。

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