| Jurisdiction: | Diocese |
| Mbinga | |
| Latin: | Dioecesis Mbingaënsis |
| Country: | Tanzania |
| Metropolitan: | Songea |
| Rite: | Latin Rite |
| Area Km2: | 11400 |
| Population: | 461,579 |
| Population As Of: | 2004 |
| Catholics: | 346,712 |
| Catholics Percent: | 75.1 |
| Bishop: | John Chrisostom Ndimbo |
The Roman Catholic Diocese of Mbinga (Latin: Dioecesis Mbingaënsis) is a diocese located in Mbinga in the ecclesiastical province of Songea in Tanzania.