- Source: Canton of La Guerche-de-Bretagne
The canton of La Guerche-de-Bretagne is an administrative division of the Ille-et-Vilaine department, in northwestern France. At the French canton reorganisation which came into effect in March 2015, it was expanded from 12 to 31 communes. Its seat is in La Guerche-de-Bretagne.
It consists of the following communes: