- Ecclesiastical province of Alger
- Metropolitan
Roman Catholic Archdiocese of Alger; united with the titular see of
Iulia Caesarea (Ancient bishopric at Alger)
- suffragan Roman Catholic Diocese of Constantine; united with the titular see of Hippo (Regius) (Ancient bishopric at Constantine)
- suffragan Roman Catholic Diocese of Oran
- Exempt
(Immediately subject to the Holy See)
- Official Website of the Catholic Church in Algeria
- GCatholic
- "Catholic Church in Algeria". Catholic-Hierarchy.org. David M. Cheney. Archived from the original on 20 February 2023.
- Ecclesiastical province of Alger
- Metropolitan
Roman Catholic Archdiocese of Alger; united with the titular see of
Iulia Caesarea (Ancient bishopric at Alger)
- suffragan Roman Catholic Diocese of Constantine; united with the titular see of Hippo (Regius) (Ancient bishopric at Constantine)
- suffragan Roman Catholic Diocese of Oran
- Exempt
(Immediately subject to the Holy See)
- Official Website of the Catholic Church in Algeria
- GCatholic
- "Catholic Church in Algeria". Catholic-Hierarchy.org. David M. Cheney. Archived from the original on 20 February 2023.