Johann Philipp Gustav von Ewers or Evers (27 July 1779 – 20 November 1830) was a German legal historian and the founder of Russian legal history as a scholarly discipline. Ewers was a farmer’s son from the village of Amelunxen (now a part of Beverungen) in the Bishopric of Paderborn. He first studied theology and then political science at the University of Göttingen.