The canton of Ligny-en-Barrois is an administrative division of the Meuse department, northeastern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Ligny-en-Barrois.
It consists of the following communes:
Coordinates: 48°41′N 5°19′E / 48.69°N 5.32°E