| Jurisdiction: | Diocese |
| Nanterre | |
| Latin: | Dioecesis Nemptodurensis |
| Local: | Diocèse de Nanterre |
| Country: |  France |
| Province: | Paris |
| Area Km2: | 175 |
| Population: | 1,586,434 |
| Population As Of: | 2015 |
| Catholics: | 950,463 |
| Catholics Percent: | 59.9 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 9 October 1966 |
| Cathedral: | Cathedral of St. Genevieve and Saint Maurice in Nanterre |
| Bishop: | Matthieu Rougé |
| Metro Archbishop: | Laurent Ulrich |
| Archdeacon: | for one--> |
| Emeritus Bishops: | Gérard Daucourt Bishop Emeritus (2002-2013) |
| Map: | Diocèse de Nanterre.svg |
| Website: | Website of the Diocese |
The Diocese of Nanterre (Latin: Dioecesis Nemptodurensis; French: Diocèse de Nanterre) is a Latin diocese of the Catholic Church in France. Erected in 1966, 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.