| Jean-Léonce Dupont | |
| Office: | President of the Departmental council of Calvados |
| Term Start: | 31 March 2011 |
| Predecessor: | Anne d'Ornano |
| Office2: | Member of the French Senate for Calvados |
| Term Start2: | 1 October 1998 |
| Term End2: | 1 October 2017 |
| Predecessor2: | Philippe de Bourgoing |
| Successor2: | Sonia de La Provôté |
| Office3: | Mayor of Bayeux |
| Term Start3: | 18 June 1995 |
| Term End3: | 18 March 2001 |
| Predecessor3: | Jean Le Carpentier |
| Successor3: | Patrick Gomont |
| Birth Date: | 31 January 1955 |
| Birth Place: | Bayeux, France |
| Party: | UDI The Centrists |
Jean-Léonce Dupont (born 31 January 1955) is a French politician and a former member of the French Senate. He represents the Calvados department and is both a Vice President of the Senate and his Union for French Democracy Party. He was mayor of Bayeux between 1995 and 2001.