Reuil-en-Brie (, ) is a commune in the Seine-et-Marne department in the ÃÂle-de-France region in north-central France.
The settlement grew up around the monastery founded by Rado, a mayor of the palace of Burgundy, in about 630, which from his name was called Radolium. In later times it was a priory of Cluny.
The inhabitants are called Reuillois.