Berthold, Bertholde or Bertholdus of Toul (died 25 September 1018, Toul) was a German Roman Catholic clergyman.
He was the thirty-sixth bishop of Toul, succeeding Robert. The clergy of Toul confirmed his nomination by Otto III, Holy Roman Emperor due to his piety. He was consecrated on 3 October 995 by Ludolf of Trier, who proposed that he model his life on his predecessor Gerard of Toul. He held the post until his death.
At Toul, Berthold had a school for the sons of the nobility. Five-year-old Bruno of Egisheim-Dagsburg, son of Emperor Conrad II's first cousin, Count Hugo, was entrusted to Bishop Berthold to be educated. Bruno later became Pope Leo IX.
- Mann, Horace. "Pope St. Leo IX." The Catholic Encyclopedia Vol. 9. New York: Robert Appleton Company, 1910. 12 May 2019 This article incorporates text from this source, which is in the public domain.
- Dom Augustin Calmet, Histoire ecclésiastique et civile de la Lorraine, Nancy, 1728, 4 vol., in-fol.
- A.D. Thiéry, Histoire de la ville de Toul et de ses évêques, suivie d'une notice de la cathédrale