| Bretignolles-sur-Mer | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Brétignolles-sur-Mer.svg |
| Arrondissement: | Les Sables-d'Olonne |
| Canton: | Saint-Hilaire-de-Riez |
| Insee: | 85035 |
| Postal Code: | 85470 |
| Mayor: | Frédéric Fouquet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays de Saint-Gilles-Croix-de-Vie |
| Coordinates: | 46.6286°N -1.8539°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 38 |
| Area Km2: | 27.32 |
Bretignolles-sur-Mer (in French pronounced as /bʁetiɲɔl syʁ mɛʁ/, literally Bretignolles on Sea; also Brétignolles-sur-Mer) is a commune in the Vendée department in the Pays de la Loire region in western France.