The canton of Cancale is a former canton of France, located in the arrondissement of Saint-Malo, in the Ille-et-Vilaine département, Brittany région. It had 16,254 inhabitants (2012). It was disbanded following the French canton reorganisation which came into effect in March 2015.
The canton comprised the following communes:
Between 2011 and 2015, the canton of Cancale was represented in the general council of Ille-et-Vilaine department by DVG councillor Maurice Jannin, Mayor of Cancale.