The canton of Montlouis-sur-Loire is an administrative division of the Indre-et-Loire department, central France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Montlouis-sur-Loire.
It consists of the following communes:
Coordinates: 47°23′N 0°50′E / 47.39°N 0.83°E