Hôtel d'Aligre, Private mansion in 7th arrondissement of Paris, France.

The Hôtel d'Aligre stands at 15 rue de l'Université, with a second frontage at 17-19 rue de Verneuil in the 7th arrondissement. Its light tan stone facade centres on a round-arched portal framed by rusticated blocks and closed by a dark metal double door. Above the door a metal panel carries a coat of arms with two supporters; a triangular pediment with a small semicircular window and keystone sits over the arch, flanked by tall windows with metal balcony railings, and dormers pierce the mansard roof.

The building was designed in the 17th century by master mason Tape for Jacques Laugeois d'Imbercourt, a tax farmer from a Parisian merchant family. Surgeon Alfred Richet purchased the property in 1881, establishing a family residence that would span multiple generations.

From 1883 to 1988 the offices of the Revue des Deux Mondes, founded in 1829, occupied this mansion, so its editorial meetings took place behind the facade at 15 rue de l'Université. The journal moved out in 1988, five years before the building's 1996 inscription as a monument historique.

The mansion stands at 15 rue de l'Université, with a second frontage at 17-19 rue de Verneuil; the nearest métro stop is Rue du Bac. It is a private building, so the courtyard and interiors are not open to visitors. From the street you can see the round-arched portal, the coat-of-arms panel above the doors, the pediment window and the plaque numbered 15.

The plaque beside the entrance reads "15", the street number on rue de l'Université; the building also extends to 17–19 rue de Verneuil. The coat of arms on the metal panel above the double door carries two supporters and a central shield, a detail easy to miss when walking past.