Boulay-Moselle is a commune located in the Moselle department within the Grand Est region of northeastern France. It serves as a local administrative center and was historically significant as a subprefecture of the Moselle department until 2015.
The current boundaries of the commune were established in January 1973 following the incorporation of the former commune of Halling-lès-Boulay. The area is situated in the northeastern portion of the country, characterized by its administrative history and regional geography.