Ole Borch (7 April 1626 – 13 October 1690) (latinized to Olaus Borrichius or Olaus Borrichus) was a Danish scientist, physician, grammarian, and poet. He was royal physician to both Kings Frederick III of Denmark and Christian V of Denmark. He was the founder of Borchs Kollegium and is noted for being the influential instructor of scientist Nicolas Steno.