The Roman Catholic Diocese of Nanterre, is a diocese of the Latin Rite of the Roman Catholic church in France. Erected in 1966 as the Diocese of Corbeil, the diocese was split off from the Diocese of Versailles and the Archdiocese of Paris. Currently the diocese remains a suffragan of the Archdiocese of Paris.
The current bishop is Gérard Antoine Daucourt, appointed in 2002.