The Arrondissement of Rouen is an arrondissement of France in the Seine-Maritime department in the Normandy region.

[2] Its population is 639,363 (2021), and its area is 1,936.2 km2 (747.6 sq mi).

[3] The communes of the arrondissement of Rouen, and their INSEE codes, are:[2] The arrondissement of Rouen was created in 1800.

[5] As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements.

The cantons of the arrondissement of Rouen were, as of January 2015:[6]