The Canton of Cany-Barville 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 consisted of 18 communes, which joined the canton of Saint-Valery-en-Caux in 2015. It had a total of 9,470 inhabitants (2012).
An area of farming, forestry and light industry in the arrondissement of Dieppe, centred on the town of Cany-Barville. The altitude varies from 0m (Paluel) to 142 m (Grainville-la-Teinturière) with an average altitude of 58m.
The canton comprised 18 communes: