Abbey of Saint Loup, Troyes, Historical abbey in Troyes, France.

Abbey of Saint Loup is a medieval building in Troyes that now houses the city's Museum of Fine Arts. It displays typical monastic architecture with high stone walls and large windows that light the interior galleries.

The building was founded in the 9th century to hold the relics of Bishop Lupus and became an important site for the city. In the 12th century it was reformed and adopted new religious rules that shaped its daily life and operations.

The abbey takes its name from Lupus, bishop of Troyes, who died in 478 and was credited with defending the city against Attila. He became the city's patron saint, and his relics drew the monastic community founded in the 9th century. The canons kept a scriptorium and library, and the poet Chrétien de Troyes may have been a canon here.

The museum occupies the only conventual building left standing, in the quadrilateral formed by rue Mitandier, rue de la Cité, rue Girardon and rue Chrétien-de-Troyes. It has been listed as a monument historique since 13 August 1963. The collections run from the 14th to the 19th century, with local medieval sculpture, works by the Troyes-born sculptor François Girardon, decorative arts, Roman antiquities such as the Apollo of Vaupoisson, and the Pouan treasure, the 5th-century grave goods of a Germanic warrior.

During the French Revolution the building was repurposed to store books and manuscripts rescued from nearby religious institutions. This collection preserved important texts that might otherwise have been lost forever.