| Jurisdiction: | Diocese |
| Anguo | |
| Local: | 安国教区 |
| Latin: | Dioecesis Ngancuovensis |
| Country: |  China |
| Rite: | Latin Rite |
| Denomination: | Roman Catholic |
| Population: | 1,200,000 |
| Population As Of: | 1949 |
| Catholics: | 33,200 |
| Catholics Percent: | 2.8 |
| Bishop: | Sede Vacante |
| Metro Archbishop: | Joseph Li Shan |
The Roman Catholic Diocese of Anguo (Latin: Ngancuoven(sis),) is a diocese located in the city of Anguo in the ecclesiastical province of Beijing in China.