| Montguyon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Montguyon 17.svg |
| Arrondissement: | Jonzac |
| Canton: | Les Trois Monts |
| Insee: | 17241 |
| Postal Code: | 17270 |
| Mayor: | Julien Mouchebœuf[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haute-Saintonge |
| Coordinates: | 45.2161°N -0.1872°W |
| Elevation M: | 60 |
| Elevation Min M: | 30 |
| Elevation Max M: | 121 |
| Area Km2: | 18.18 |
Montguyon (in French pronounced as /mɔ̃ɡɥijɔ̃/) is a commune in the Charente-Maritime department in southwestern France.