| Saint-Aignan-Grandlieu | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville 44 Saint-Aignan-Grandlieu.svg |
| Arrondissement: | Nantes |
| Canton: | Rezé-1 |
| Insee: | 44150 |
| Postal Code: | 44860 |
| Mayor: | Jean-Claude Lemasson[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Nantes Métropole |
| Coordinates: | 47.1244°N -1.6294°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 29 |
| Area Km2: | 17.94 |
Saint-Aignan-Grandlieu (in French pronounced as /sɛ̃t‿ɛɲɑ̃ ɡʁɑ̃ljø/; Breton: Sant-Enion-al-Lenn-Veur; Gallo: Saent-Aenyan-Graund-Loe) is a commune in the Loire-Atlantique department in the administrative region of Pays de la Loire, France.[2]