Jean Glénisson (25 January 1921 – 9 October 2010) was a French historian, archivist and paleographer.
|Born||25 January 1921|
|Died||9 October 2010(aged 89)|
- Degree in literature at the Faculty of Arts of Poitiers, (1940)
- Studies at the École nationale des chartes
- Archivist paleographer (1946)
- Member of the École française de Rome (1946–1948)
- Curator at the Archives nationales (1950–1952), responsible for the Trésor des Chartes
- Head of the Archives of the French Equatorial Africa library in Brazzaville (1952–1957)
- Professor of historiography at the University of São Paulo in Brazil
- Chargé de conférences (1959–1963) then director of studies at the VIe section of the École pratique des hautes études (EPHE) (1963)
- Director of the Institut de recherche et d'histoire des textes (1964 to 1986)
- Member of the International Committee of Latin paleography, successor of Jeanne Vielliard as director of the IRHT (1966–1992).
A text editor, historian of medieval administration, including papal but also from Aunis and Saintonge, Glénisson also supported the introduction of laboratory techniques and computer analysis in order to study manuscript books.