| Justine Gruet | |
| Office: | Member of the National Assembly for Jura's 3rd constituency |
| Predecessor: | Jean-Marie Sermier |
| Term Start: | 22 June 2022 |
| Term End: | 9 June 2024 |
| Successor: | to be elected |
| Birth Date: | 23 October 1989 |
| Birth Place: | Besançon, France |
| Nationality: | French |
| Party: | Republican |
Justine Gruet (born 23 October 1989) is a French politician from The Republicans (LR) who has represented Jura's 3rd constituency in the National Assembly since 2022.[1]