The Canton of Boos is a former canton situated in the Seine-Maritime département and in the Haute-Normandie region of northern France. It was disbanded following the French canton reorganisation which came into effect in March 2015. It had a total of 38,802 inhabitants (2012).
An area of farming and light industry in the arrondissement of Rouen, centred on the town of Boos. The altitude varies from 2m (Les Authieux-sur-le-Port-Saint-Ouen) to 162m (Le Mesnil-Esnard) with an average altitude of 142m.
The canton comprised 15 communes: