Boulay-Moselle (; , Moselle Franconian: Bolchin) is a commune in the Moselle department in Grand Est in northeastern France. The locality of Halling-lès-Boulay (German: Hallingen) was incorporated in the commune in 1972. Until 2015, Boulay-Moselle was a subprefecture of the Moselle department. Population See also Camp du Ban-Saint-Jean Communes of the Moselle department References External links Communes of Moselle (department) Duchy of Lorraine