| Tristan Lahais | |
| Constituency Am: | Ille-et-Vilaine's 2nd constituency |
| Assembly: | French National |
| Term Start: | 18 July 2024 |
| Predecessor: | Laurence Maillart-Méhaignerie |
| Party: | Génération.s (since 2017) |
| Otherparty: | Socialist Party (2002–2017) |
| Birth Date: | df=y 11 May 1983 |
Tristan Lahais (born 11 May 1983) is a French politician of Génération.s who was elected member of the National Assembly for Ille-et-Vilaine's 2nd constituency in 2024.[1] He has served as vice president of Rennes Métropole since 2020,[1] and was a deputy mayor of Rennes under Nathalie Appéré.[2]
Lahais was born on 11 May 1983 and was raised in Rennes, where his father worked as a librarian and his mother was a secretary.[3] He joined the Union Nationale des Étudiants de France and the Socialist Party as a student, after Jean-Marie Le Pen qualified for the second round of the 2002 presidential election.[1]