The arrondissement of Le Havre was created in 1800.[4] At the January 2017 reorganisation of the arrondissements of Seine-Maritime, it lost 12 communes to the arrondissement of Dieppe and seven communes to the arrondissement of Rouen.[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 Le Havre were, as of January 2015:[6]