| Party: | Breton Democratic Union |
| Constituency Mp: | France |
| Term Start: | 24 September 2023 |
| Term End: | 15 July 2024 |
| Parliament: | European |
| Birth Place: | Loudéac, France |
| Nationality: | French |
| Predecessor: | Yannick Jadot |
Lydie Massard (born 24 August 1978) is a French politician of the Breton Democratic Union who has been serving as a Member of the European Parliament from 2023 to 2024.[1] She replaced Yannick Jadot.