The canton of Saint-Malo-2 is an administrative division of the Ille-et-Vilaine department, in northwestern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Saint-Malo.

It consists of the following communes:

1. Dinard
2. Le Minihic-sur-Rance
3. Pleurtuit
4. La Richardais
5. Saint-Briac-sur-Mer
6. Saint-Jouan-des-Guérets
7. Saint-Lunaire
8. Saint-Malo (partly)

48°38′N 2°01′W / 48.63°N 2.01°W / 48.63; -2.01