Belloy may refer to: People Jean-Baptiste de Belloy, Archbishop of Paris from 1802 to 1808 Pierre-Laurent Buirette de Belloy, a French dramatist and actor Places Belloy-en-Santerre, a commune of the Somme département, in France Belloy-Saint-Léonard, a commune of the Somme département, in France Belloy-sur-Somme, a commune of the Somme département, in France Belloy, Oise, a commune of the Oise département, in France Belloy, Alberta, a hamlet in Alberta, Canada Other Belloy Formation, a stratigraphical unit in the Western Canadian Sedimentary Basin