| Champtocé-sur-Loire | |
| Commune Status: | Commune |
| Arrondissement: | Angers |
| Canton: | Chalonnes-sur-Loire |
| Insee: | 49068 |
| Postal Code: | 49123 |
| Mayor: | Valérie Lévêque[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Loire Layon Aubance |
| Coordinates: | 47.4125°N -0.8619°W |
| Elevation M: | 73 |
| Elevation Min M: | 11 |
| Elevation Max M: | 83 |
| Area Km2: | 36.76 |
| Demonym: | Champtocéen, Champtocéenne |
Champtocé-sur-Loire (in French pronounced as /ʃɑ̃tɔse syʁ lwaʁ/, literally Champtocé on Loire) is a commune in the Maine-et-Loire department of western France. Its castle gained notoriety as a scene of some of the crimes of the medieval child murderer, Gilles de Rais.