The Canton of Longueville-sur-Scie 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 23 communes,[1] which joined the canton of Luneray in 2015.

[1] An area of farming and associated light industry in the arrondissement of Dieppe, centred on the town of Longueville-sur-Scie.

The canton comprised 23 communes:[1]