The arrondissement of Boulay-Moselle is a former arrondissement of France in the Moselle department in the Lorraine region.

In 2015 it was merged into the new arrondissement of Forbach-Boulay-Moselle.

[2] The communes of the arrondissement of Boulay-Moselle, and their INSEE codes, were:[2] The arrondissement of Boulay-Moselle was created in 1919.

[1] As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements.

The cantons of the arrondissement of Boulay-Moselle were, as of January 2015:[2]