| Year | From | To |
|---|
| 1503 | | | Diocese of Alghero, Italy
| Erected |
| 1503 | Diocese of Ales (Uselli), Italy
Diocese of Terralba, Italy
| United | Diocese of Ales e Terralba, Italy
| United |
| 1854 | | | Missionaries of the Sacred Heart of Jesus
| Founded |
| 1856 | | | Society of African Missions
| Founded |
| 1859 | | | Pontifical North American College, Roman Curia
| Established |
| 1881 | | | Society of the Divine Savior
| Founded |
| 1890 | | | Vicariate Apostolic of New Pomerania, Papua New Guinea
| Erected |
| 1897 | | | Oblates of St. Francis de Sales
| Approbation |
| 1924 | | | Vicariate Apostolic of Yünnanfu, China
| Name Changed |
| 1950 | | | Military Ordinariate of Philippines, Military
| Erected |
| 1961 | Archdiocese of Mechelen, Belgium
| Territory Lost | Diocese of Antwerpen {Antwerp}, Belgium
| Erected |
| 1961 | Archdiocese of Mechelen, Belgium
| Name Changed | Archdiocese of Mechelen-Brussel {Malines-Brussels}, Belgium
| Name Changed |
| 1968 | Diocese of Innsbruck-Feldkirch, Austria
| Split | Diocese of Feldkirch, Austria
Diocese of Innsbruck, Austria
| Split |
| 1977 | Diocese of Oeiras, Brazil
| Name Changed | Diocese of Oeiras-Floriano, Piaui, Brazil
| Name Changed |
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