Jules Victor Delecourt was a Belgian writer and secretary of the Société des bibliophiles de Belgique.
Jules Victor Delecourt was born in Mons, Kingdom of Belgium in 9 October 1835.
In 1863, he published a dictionary in Brussels titled Essai d'un dictionnaire des ouvrages anonymes et pseudonymes publié en Belgique au 19e siècle et principalement depuis 1830, covering anonymous books and pseudonyms from 19th-century Belgium, primarily since 1830.
He published Bibliographie de l'histoire du Hainaut, a historical account of Hainaut, in 1864.
In 1866, he served as the secretary of the Society of Bibliophiles of Belgium () in Mons. That year, the first issue of Le Bibliophile Belge, the society's journal, included his discoveries about the historical materials of Patrice Beaucourt de Noortvelde.
Jules Victor Delecourt died in Ixelles, Belgium on 13 February 1906.
His wife was Marie Elise Joachime Victoire Hubertine Sophie Chalon, and they had a son, Victor Charles Renier Jules Delecourt.