The Hôtel de Préfecture des Yvelines is a freestone building, located in Versailles, France.

It is, since 1968, the year of creation of the department, the seat of the prefecture and the departmental council of Yvelines.

The hotel of the prefecture of Versailles was built from 1863 to 1866 on the site of the former royal kennel (French: Chenil du Roi), by the Versailles architect Amédée Manuel on an order from the prefect Édouard Charton.

[3] In 1870, it became the seat of the Prussian General Staff,[4][5] then during the period of the Paris Commune, it housed the government of Adolphe Thiers and then of Patrice de MacMahon.

The triangular pediment which crowns the central avant-corps of the building is decorated with a bas-relief due to the sculptor Georges Clère, which represents the Oise and the Seine personified.