| Maisdon-sur-Sèvre | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Maisdon-sur-Sèvre (Loire-Atlantique).svg |
| Arrondissement: | Nantes |
| Canton: | Clisson |
| Insee: | 44088 |
| Postal Code: | 44690 |
| Mayor: | Aymar Rivallin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Clisson Sèvre et Maine Agglo |
| Coordinates: | 47.0981°N -1.3839°W |
| Elevation Min M: | 3 |
| Elevation Max M: | 63 |
| Area Km2: | 17.45 |
Maisdon-sur-Sèvre (in French pronounced as /mɛdɔ̃ syʁ sɛvʁ/, literally Maisdon on Sèvre; Gallo: Maédon, Breton: Maezon-ar-Gwini) is a commune in the Loire-Atlantique department in western France.