| Bessay | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Bessay (Vendée).svg |
| Arrondissement: | Fontenay-le-Comte |
| Canton: | Mareuil-sur-Lay-Dissais |
| Insee: | 85023 |
| Postal Code: | 85320 |
| Mayor: | Jean-Marie Soulard[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 46.5386°N -1.1531°W |
| Elevation Min M: | 2 |
| Elevation Max M: | 48 |
| Area Km2: | 10.79 |
Bessay (pronounced as /fr/) is a commune in the Vendée department in the Pays de la Loire region in western France.
The river Smagne forms all of the commune's southern border, then flows into the Lay, which flows southwestward through the north-western part of the commune.