The Roman Catholic Church in East Africa's major Indian Ocean island state Madagascar comprises only a Latin hierarchy, which is composed of five ecclesiastical provinces, whose Metropolitan Archbisdhoprics have a total of seventeen suffragan dioceses.
There is no Eastern Catholic, pre-diocesan or other exempt jurisdiction.
There is also an Apostolic Nunciature to Madagascar as papal diplomatic representation (embassy-level), in national capital Antananarivo.
There are no titular sees.
All defunct jurisdictions have current successor sees.
Current Latin dioceses
Episcopal Conference of Madagascar
Ecclesiastical Province of Antananarivo Metropolitan Archdiocese of Antananarivo Diocese of Antsirabe Diocese of Maintirano Diocese of Miarinarivo Diocese of Tsiroanomandidy
Ecclesiastical Province of Antsiranana Metropolitan Archdiocese of Antsiranana Diocese of Ambanja Diocese of Mahajanga Diocese of Port-Bergé
Ecclesiastical Province of Fianarantsoa Metropolitan Archdiocese of Fianarantsoa Diocese of Ambositra Diocese of Farafangana Diocese of Ihosy Diocese of Mananjary
Ecclesiastical Province of Toamasina Metropolitan Archdiocese of Toamasina Diocese of Ambatondrazaka Diocese of Fenoarivo Atsinanana Diocese of Moramanga
Ecclesiastical Province of Toliara Metropolitan Archdiocese of Toliara Diocese of Morombe Diocese of Morondava Diocese of Tôlagnaro.
See also List of Catholic dioceses (structured view) List of Roman Catholic dioceses in Indian Ocean Episcopal Conference (Comoros, Mauritius, LaRéunion, Seychelles)
Sources and external links GCatholic.org - data for all sections Catholic-Hierarchy entry.