| Thiverval-Grignon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Thiverval-Grignon (Yvelines).svg |
| Arrondissement: | Rambouillet |
| Canton: | Plaisir |
| Insee: | 78615 |
| Postal Code: | 78850 |
| Mayor: | Nadine Gohard[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Cœur d'Yvelines |
| Coordinates: | 48.8519°N 1.9181°W |
| Elevation M: | 77 |
| Elevation Min M: | 56 |
| Elevation Max M: | 132 |
| Area Km2: | 11.17 |
Thiverval-Grignon is a commune in the Yvelines department in the Île-de-France region in north-central France.