The Château de Rambouillet, known in English as the Castle of Rambouillet, is a château in the town of Rambouillet, Yvelines department, in the Île-de-France region in northern France, 50 km (31 mi) southwest of Paris. It was the summer residence of the Presidents of France from 1896 until 2009, and it is now managed by the Centre des monuments nationaux.

Rambouillet is a subprefecture of the Yvelines department in the Île-de-France region of France. It is located beyond the outskirts of Paris, 44.3 km (27.5 mi) southwest of its centre. In 2018, the commune had a population of 26,933.