| Jurisdiction: | Diocese |
| Ondjiva | |
| Latin: | Dioecesis Ondiivana |
| Country: |  Angola |
| Denomination: | Catholicism |
| Parishes: | 17 |
| Rite: | Roman |
| Sui Iuris Church: | Latin Church |
| Cathedral: | Sé Catedral de Nossa Senhora das Vitórias |
| Bishop: | Pio Hipunyati |
| Archdiocese: | Archdiocese of Lubango |
| Priests: | 33 |
| Population: | 1,154,410 |
| Catholics: | 806,760 |
| Catholics Percent: | 69.9 |
| Area Km2: | 83900 |
The Roman Catholic Diocese of Ondjiva (la|Dioecesis Ondiivanus) is a diocese located in the city of Ondjiva in the ecclesiastical province of Lubango in Angola.
The Cathedral of the diocese is Sé Catedral de Nossa Senhora das Vitórias (Cathedral Church of Our Lady of Victories) in Ondjiva.