| Date | Country | Change |
| 2024 | Titular Archiepiscopal See of Myra (Greek-Melkite Rite) was promoted as Titular Metropolitan See of Myra | |
| 2024.02.10 | Diocese of Canindeyú was established (from Diocese of Ciudad del Este and became suffragan of Asunción) | |
| 2024.02.22 | Diocese of Boké was established (from Metropolitan Archdiocese of Conakry and became suffragan of Conakry) | |
| 2024.06.18 | Diocese of Ndola was promoted as Metropolitan Archdiocese of Ndola (with suffragan sees Kabwe and Solwezi) | |
| 2024.06.21 | Diocese of Labuan Bajo was established (from Diocese of Ruteng and became suffragan of Ende) | |
| 2024.06.22 | Diocese of Matamoros was renamed as Diocese of Matamoros–Reynosa | |
| 2024.06.26 | Diocese of Jaú was established (from Diocese of São Carlos and became suffragan of Campinas) | |
| 2024.07.03 | Diocese of Bentiu was established (from Diocese of Malakal and became suffragan of Juba) | |
| 2024.07.22 | Diocese of Santiago del Estero was promoted as Archdiocese of Santiago del Estero | |
| 2024.08.01 | Diocese of Ganda was established (from Diocese of Benguela and became suffragan of Huambo) | |
| 2024.09.12 | Metropolitan Archdiocese of Cardiff was renamed as Metropolitan Archdiocese of Cardiff–Menevia (gained territory from the suppressed Diocese of Menevia and lost suffragan see Menevia) | |
| 2024.09.12 | Diocese of Menevia was suppressed (to Metropolitan Archdiocese of Cardiff–Menevia) | |
| 2024.09.26 | Apostolic Administration of Estonia was promoted as Diocese of Talinn (without ecclesiastical province) | |
| 2024.10.15 | Diocese of Prosperidad was established (from Diocese of Butuan and became suffragan of Cagayan de Oro) | |
| 2024.10.28 | Diocese of Fenyang 汾陽 was renamed as Diocese of Luliang 呂梁 (lost territory to Metropolitan Archdiocese of Taiyuan 太原 and Diocese of Yuci 榆次) | |
| 2024.11.05 | Diocese of Chapecó was promoted as Metropolitan Archdiocese of Chapecó (with suffragan sees Caçador, Joaçaba and Lages) | |
| 2024.11.05 | Diocese of Joinville was promoted as Metropolitan Archdiocese of Joinville (with suffragan sees Blumenau and Rio do Sul) |
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