The Musée de Cluny, also known as Musée national du Moyen Âge – Thermes et hôtel de Cluny, is a museum of the Middle Ages in Paris, France. It is located in the Latin quarter in the 5th arrondissement of Paris at 6 Place Paul-Painlevé, south of the Boulevard Saint-Germain, between the Boulevard Saint-Michel and the Rue Saint-Jacques.
The Hôtel de Cluny is partially constructed on the remnants of the third century Gallo-Roman baths known as the Thermes de Cluny, thermal baths from the Roman era of Gaul. The museum consists of two buildings: the frigidarium, within the vestiges of the Thermes de Cluny, and the Hôtel de Cluny itself, which houses its collections. The frigidarium is about 6,000 square meters.
The museum houses a vast collection of objects and art from the Middle Ages. Among the principal holdings of the museum are the six tapestries of The Lady and the Unicorn.