Jean Stengers (1922 – 15 August 2002) was a Belgian historian.
A precocious and brilliant student, Stengers entered the Free University of Brussels in 1939, at the age of 17. He published his first scholarly article two years later in the Revue belge de philologie et d'histoire (Belgian review of philology and history). In 1948, he presented his doctoral thesis under the direction of Professor Bonenfant on the historical bases of the national sentiments of Belgium.
"From this time," said the historian Ginette Kurgan, "the astonishing eclecticism of his interests is manifest, reinforced by a rigour of approach stimulated by his training as a medievalist." From 1949 he taught colonial history as assistant to professor Franz Van Kalken, and in 1951 he took over Van Kalken's entire curriculum in modern history.
Stengers was promoted to professeur ordinaire in 1954. He helped found the Institute of the History of Christianity, and in 1967 succeeded Guillaume Jacquemyns as director of the seminar of contemporary history. Though his interests were wide-ranging, his scholarly reputation was built on his treatment of the Belgian colonial history. His work Congo, Mythes et réalités was published in 1989.
He was the father of the historian of science and epistemologist Isabelle Stengers.
- Belgique et Congo; l'élaboration de la Charte coloniale, Bruxelles, La Renaissance du Livre, 1963.
- With Eliane Gubin: Histoire du sentiment national en Belgique des origines à 1918, Bruxelles, Racine, 2000-2002, 2 vol. (Vol. 1: Les racines de la Belgique : jusqu'à la révolution de 1830; Vol. 2: Le grand siècle de la nationalité belge).
- Congo, Mythes et réalités, Paris-Louvain-la-Neuve, Duculot, 1989. (Revised and expanded in 2005, éditions Racine.)
- L'action du roi en Belgique depuis 1831: Pouvoir et influence : essai de typologie des modes d'action du roi et Vertiges du hasard [ISBN 2-84324-036-0].
- "Essai d'une méthode d'évaluation des sommes d'argent exprimées en monnaies anciennes", Revue belge de philologie et d'histoire, Vol. 20 (3-4), 1941, pp. 575–588.