| Brem-sur-Mer | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Brem-sur-Mer (Vendée).svg |
| Arrondissement: | Les Sables-d'Olonne |
| Canton: | Saint-Hilaire-de-Riez |
| Insee: | 85243 |
| Postal Code: | 85470 |
| Mayor: | Yann Thomas[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays de Saint-Gilles-Croix-de-Vie |
| Coordinates: | 46.6054°N -1.8301°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 55 |
| Area Km2: | 15.85 |
Brem-sur-Mer (in French pronounced as /bʁɛm syʁ mɛʁ/, literally Brem on Sea) is a commune in the Vendée département in the Pays de la Loire region in western France.
It was created in 1974 by the merger of the former communes of Saint Martin-de-Brem and Saint Nicolas-de-Brem.
The commune is a beach resort on the Atlantic Ocean (sur-mer means "on-sea"); "Brem" is derived in etymology from the Gaulish "bram".
The main activity of the commune is tourism. It has an industrial area with fourteen companies. It is also known for its vineyard, planted during the Middle Ages by monks.
Brem-sur-Mer is a twinned with Mammendorf, Germany.