| Date | Country | Change |
| 1862.04.08 | Apostolic Vicariate of Athabaska Mackenzie was established (from Diocese of Saint-Boniface and became suffragan of Québec) | |
| 1862.09.28 | Archdiocese of Baghdad (Syriac Rite) was established (without ecclesiastical province) | |
| 1862.09.28 | Diocese of Amida (Syriac Rite) was established | |
| 1862.11.17 | Diocese of Goulburn was established (from Metropolitan Archdiocese of Sydney and became suffragan of Sydney) | |
| 1862.12.29 | Diocese of Bolivar was established (from Diocese of Cuenca and became suffragan of Quito) | |
| 1862.12.29 | Diocese of Ibarra was established (from Metropolitan Archdiocese of Quito and became suffragan of Quito) | |
| 1862.12.29 | Diocese of Loja was established (from Diocese of Cuenca and became suffragan of Quito) |
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