Francis Rapp (27 June 1926 – 29 March 2020) was a French medievalist historian. His works focused in the history of Alsace and Medieval Germany. He was an "Emeritus" professor at University of Neuchâtel. He was a member of the Academy of Inscriptions and Fine Letters, beginning in 1993. Rapp was also a member of the editorial board of the review "Archiv für Reformationsgeschichte".