Jean-Baptiste de Santeul (or Santeuil, Santeüil; 12 May 1630 – 5 August 1697) was a French poet who wrote in Latin.

His uncle, Nicolas de Santeuil, was President of the Finance office of Paris, then Intendant of the Department of Beauvais for twenty years.

He studied rhetoric under the Jesuit Father Coffard, who discovered his talent for Latin verse.

[1] Jean-Baptiste de Santeul entered the Abbey of St. Victor, Paris, in 1653, and made his profession the next year.

[5] De Santeul was the author of the Latin phrase castigat ridendo mores, meaning "laughter corrects customs".