The canton of Longuyon (French: Canton de Longuyon) is a former French canton located in the department of Meurthe-et-Moselle in the Lorraine region (now part of Grand Est).

This canton was organized around Nomeny in the arrondissement of Briey.

The last general councillor from this canton was Pierre Mersch (DVG), elected in 1976.

[2] The canton of Nomeny grouped together 23 municipalities and had 14,810 inhabitants (2012 census without double counts).

This Meurthe-et-Moselle geographical article is a stub.