| Type: | canton |
| Châteaugiron | |
| Seat: | Châteaugiron |
| Nbcomm: | 11 |
| Insee: | 35 05 |
| Area: | 240.25 |
The Canton of Châteaugiron is a canton of France, in the Ille-et-Vilaine département, located in the northeast of the department. At the French canton reorganisation which came into effect in March 2015, the canton was expanded from 9 to 14 communes (5 of which merged into the new communes Châteaugiron and Piré-Chancé):[1]