Édouard Clément Antoine Poncelet (1865–1947) was a Belgian archivist and historian who served as president of the Commission royale d'Histoire.
Poncelet was born to a bourgeois family in Liège on 11 December 1865.
[1] After completing the candidature degree at the University of Liège in 1884 he joined the Belgian State Archive service.
He devoted much of his time to studying cartularies and publishing editions of charters.
A considerable part of his unpublished work as an archivist was destroyed when Mons was bombed during the German invasion of Belgium (1940).