Jean Vezin (30 July 1933[1] – 30 August 2020[2]) was a French librarian and medievalist historian, specializing in Latin palaeography and codicology.
A student at the École Nationale des Chartes, he obtained the archivist palaeographer diploma in 1958 with a thesis entitled Les scriptoria d’Angers au XIe siècle[3][4] then joined the Casa de Velázquez.
A curator at the manuscript department of the Bibliothèque nationale de France from 1962 to 1974, he also taught palaeography at the Institute for Latin Studies of the Paris-Sorbonne University, as well as palaeography and codicology at the École nationale supérieure des sciences de l'information et des bibliothèques.
He was co-director of the Chartæ Latinæ Antiquiores and the Monumenta palæographica Medii Ævi.
The author of more than two hundred articles, Vezin was elected a corresponding member of the Académie des Inscriptions et Belles-Lettres on 21 November 1997.