| Montreuil-sur-Loir | |
| Commune Status: | Commune |
| Arrondissement: | Angers |
| Canton: | Angers-6 |
| Insee: | 49216 |
| Postal Code: | 49140 |
| Mayor: | Philippe Cardot[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.6086°N -0.4031°W |
| Elevation Min M: | 15 |
| Elevation Max M: | 54 |
| Area Km2: | 11.99 |
| Demonym: | Monsteriolais, Monsteriolaise |
Montreuil-sur-Loir (in French pronounced as /mɔ̃tʁœj syʁ lwaʁ/, literally Montreuil on Loir) is a commune in the Maine-et-Loire department in western France.