The Canton of Dieppe-Est 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 8 communes,[1] which joined the canton of Dieppe-2 in 2015.

[1] A farming, light industry and fishing area in the arrondissement of Dieppe, centred on the port and town of Dieppe.

The canton comprised 8 communes:[1]