Pierre Petit de Julleville (22 November 1876 – 10 December 1947) was a French Catholic priest, who became archbishop of Rouen.

He was canon of the cathedral chapter and superior of the School of Sainte-Croix-de-Neuilly, Neuilly, from 1910 to 1914, and, after the war from 1918 to 1927.

[1] Pierre Petit de Julleville was elected bishop of Dijon on 23 June 1927.

He was promoted to the metropolitan see of Rouen on 7 August 1936, where he acted as Apostolic administrator of the see of Dijon from 18 September 1936 to 15 May 1937.

Pierre Petit de Julleville received the title of S. Maria in Aquiro on 22 February 1946.