Libéral Bruant (ca 1635 - Paris, 22 November 1697), is a French architect best known as the designer of the Hôtel des Invalides, Paris, now dominated by the dome erected by Jules Hardouin Mansart, his collaborator in earlier stages of the construction.

A comparison of Bruant's central entrance to the Invalides, under an arched cornice packed with military trophies with Mansart's Eglise du Dome (see Les Invalides), gives a clear idea of the difference between Bruant's High Baroque and Hardouin-Mansart's restrained and somewhat academic Late Baroque.