The canton of Le Blanc-Mesnil is an administrative division of the Seine-Saint-Denis department, Île-de-France region, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Le Blanc-Mesnil.

It consists of the following communes:

1. Le Blanc-Mesnil
2. Drancy (partly)

48°56′N 2°28′E / 48.94°N 2.46°E / 48.94; 2.46