| Jurisdiction: | Diocese |
| Bo | |
| Latin: | Boënsis |
| Country: |  Sierra Leone |
| Territory: | Southern Province |
| Province: | Freetown |
| Area Km2: | 19694 |
| Population: | 1 200 000 |
| Population As Of: | 2012 |
| Catholics: | 50 000 |
| Catholics Percent: | 4.2 |
| Particular Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 2011 |
| Cathedral: | Immaculate Heart of Mary, Bo |
| Priests: | 35 |
| Bishop: | Charles Allieu Matthew Campbell |
| Map: | Sierra_Leone_Southern.png |
The Roman Catholic Diocese of Bo was created in January 2011, split off from the Archdiocese of Freetown. There are about 50,000 Roman Catholics under the jurisdiction of the diocese. Its first and present bishop is Charles Allieu Matthew Campbell.