The Archdiocese of Nanterre is a Roman Catholic archdiocese located in the Île-de-France region of France. Established in 1966, it serves as a spiritual and administrative center for the Catholic community in the western suburbs of Paris. The archdiocese encompasses several towns and cities, providing pastoral care and support to its parishes. The archdiocese is part of the larger ecclesiastical province of Paris and is led by an archbishop. It plays a significant role in promoting the Catholic faith, engaging in social outreach, and fostering community development within its jurisdiction.