Dieppe is a town and commune in the Seine-Maritime département of France.
Population of the town at the 1999 census was 34,653 inhabitants (Dieppois), whereas the whole metropolitan area (aire urbaine) had 81,419 inhabitants.
A port on the English Channel, famous for its scallops, with a regular ferry service to Newhaven, England, from the Gare Maritime, Dieppe also has a popular pebbled beach, a 15th-century castle and the churches of St. Jacques and St. Remy.