Maisons-Laffitte is a commune in the Yvelines department in the northern Île-de-France region of France. It is a part of the affluent outer suburbs of northwestern Paris, 18.2 km (11.3 mi) from its centre.

The Château de Maisons, designed by François Mansart from 1630 to 1651, is a prime example of French baroque architecture and a reference point in the history of French architecture. The château is located in Maisons-Laffitte, a northwestern suburb of Paris, in the department of Yvelines, Île-de-France.