Louis Le Vau (1612 – 11 October 1670) is a French Classical architect who works for Louis XIV of France.

He was born in Paris and dies there.

He is responsible, with André Le Nôtre and Charles Le Brun, for the redesign of the château of Vaux-le-Vicomte.

His later works include the Palace of Versailles and his collaboration with Claude Perrault on the Palais du Louvre.

Le Vau also designs two mirroring additions across the Parterre to the ever growing Château de Vincennes, the Château du Raincy, the Hotel Tambonneau, the Collège des Quatre-Nations (now housing the Institut de France), the church of St. Sulpice, and Hôtel Lambert, on the Île Saint-Louis, Paris.