| Sébastien Jumel | |
| Office: | Member of the National Assembly for Seine-Maritime's 6th constituency |
| Term Start: | 21 June 2017 |
| Term End: | 9 July 2024 |
| Parliamentarygroup: | GDR |
| Predecessor: | Marie Le Vern |
| Office2: | Mayor of Dieppe |
| Term Start2: | 14 March 2008 |
| Term End2: | 9 July 2017 |
| Predecessor2: | Édouard Leveau |
| Successor2: | Nicolas Langlois |
| Office3: | Member of the Regional Council of Seine-Maritime |
| Constituency3: | Canton of Dieppe-Ouest |
| Term Start3: | 13 October 2002 |
| Term End3: | 29 March 2015 |
| Predecessor3: | Édouard Leveau |
| Successor3: | Canton suppressed |
| Birth Date: | 20 December 1971 |
| Birth Place: | Sainte-Adresse, France |
| Nationality: | French |
| Party: | French Communist Party |
| Alma Mater: | Aix-Marseille University |
Sébastien Jumel (pronounced as /fr/; born 20 December 1971) is a French politician[1] and a member of the French Communist Party (PCF).
Jumel was elected general councillor for the Canton of Dieppe-Ouest in 2002 following a by-election, and became a vice-president in the left-wing majority in the Seine-Maritime general council in 2004. In 2008, he was elected mayor of Dieppe by the first round with 55.5% of the vote against 40.7% for the opposition. One week later, he was elected general councillor for Dieppe-Ouest.
He is considered a rising star in the French Communist Party, and in 2010, he was selected to be the candidate of the Left Front in Upper Normandy for the 2010 regional elections.