Thiverval-Grignon

{{Infobox French commune

|name = Thiverval-Grignon

|commune status = Commune

|image = Thiverval-Grignon Mairie.JPG

|caption = Town hall

|image coat of arms = Blason ville fr Thiverval-Grignon (Yvelines).svg

|arrondissement = Rambouillet

|canton = Plaisir

|INSEE = 78615

|postal code = 78850

|mayor = Nadine Gohard{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|publisher=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=4 May 2022|language=fr}}

|term = 2020–2026

|intercommunality = Cœur d'Yvelines

|coordinates = {{coord|48.8519|1.9181|format=dms|display=inline,title}}

|elevation m = 77

|elevation min m = 56

|elevation max m = 132

|area km2 = 11.17

|population = {{France metadata Wikidata|population_total}}

|population date = {{France metadata Wikidata|population_as_of}}

|population footnotes = {{France metadata Wikidata|population_footnotes}}

}}

Thiverval-Grignon ({{IPA|fr|tivɛʁval ɡʁiɲɔ̃|-|LL-Q150 (fra)-XANA000-Thiverval-Grignon.wav}}) is a commune in the Yvelines department in the Île-de-France region in north-central France.