| Montgru-Saint-Hilaire | |
| Commune Status: | Commune |
| Arrondissement: | Soissons |
| Canton: | Villers-Cotterêts |
| Insee: | 02507 |
| Postal Code: | 02210 |
| Party: | LR |
| Mayor: | Philippe Leveque[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Oulchy le Château |
| Coordinates: | 49.1903°N 3.3297°W |
| Elevation M: | 100 |
| Elevation Min M: | 78 |
| Elevation Max M: | 181 |
| Area Km2: | 3.24 |
Montgru-Saint-Hilaire is a commune in the Aisne department in Hauts-de-France in northern France.