Jean-Baptiste-Pierre Jullien de Courcelles (14 September 1759 – 24 July 1834) was a French historian and genealogist.^[1] He was born in Orléans and died at Saint-Brieuc, now in the Côtes d'Armor département of Brittany. He published several historical and genealogical works, and was a correspondent of the Société académique d'Orléans [fr].^[1] He was chief administrator of the charitable Asile Royal de la Providence in Paris, president of the hospices of Orléans, and a knight of the Papal Order of the Golden Spur.^[1]

The principal works of Courcelles are:

• Dictionnaire historique et biographique des généraux français depuis le XIe siècle, Paris: l'auteur, 1820–1823. In nine volumes:

• Volume 1; Volume 2; Volume 3; Volume 4; Volume 5; Volume 6; Volume 7; Volume 8; Volume 9

• Dictionnaire universel de la noblesse de France, Paris: au bureau général de la noblesse de France, 1820–1822. In five volumes:

• Volume 1, A–L; Volume 2, M–Z; Volume 3, A–M (supplement); Volume 4, N-Z (supplement); Volume 5 A-Z (supplement)

• Histoire généalogique et héraldique des pairs de France, des grands dignitaires de la couronne, des principales familles nobles du royaume, et des maisons princières de l'Europe, Paris: l'auteur, 1822–1833. In twelve volumes:

• Volume 1; Volume 2; Volume 3; Volume 4; Volume 5; Volume 6; Volume 7; Volume 8; Volume 9; Volume 10; Volume 11; Volume 12