| Guenrouet | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Guenrouet (Loire-Atlantique).svg |
| Arrondissement: | Saint-Nazaire |
| Canton: | Pontchâteau |
| Insee: | 44068 |
| Postal Code: | 44530 |
| Mayor: | Frédéric Millet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de Pont-Château - Saint-Gildas-des-Bois |
| Coordinates: | 47.52°N -1.9536°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 73 |
| Area Km2: | 69.9 |
Guenrouet (in French pronounced as /ɡɛ̃ʁwɛt/; also spelled Guenrouët; Gallo: Genroèt or Ghinrouètt,) is a commune in the Loire-Atlantique department in western France.