Date | Country | Change |
| Unknown |  Greece | Titular Episcopal See of Anastasiopolis (Syriac Rite) was established |
| Unknown |  Lebanon | Titular Episcopal See of Tripolis in Libanum (Syriac Rite) was established |
| Unknown |  Syria | Titular Episcopal See of Arethusa (Syriac Rite) was established |
| Unknown | Syria | Titular Episcopal See of Hierapolis (Syriac Rite) was established |
| Unknown |  Turkiye | Titular Episcopal See of Anastasiopolis (Syriac Rite) was established |
| Unknown | Turkiye | Titular Episcopal See of Bathna (Syriac Rite) was established |
| Unknown | Turkiye | Titular Archiepiscopal See of Chalcedon (Syriac Rite) was established |
| Unknown | Turkiye | Titular Episcopal See of Martyropolis (Syriac Rite) was established |
| Unknown | Titular Episcopal See of Ioppe (Syriac Rite) was established | |
| 325 | Lebanon | Patriarchal See of Antioch (Syriac Rite) was established |
| 1626 | Lebanon | Patriarchal See of Antioch (Syriac Rite) was restored |
| 1633 | Syria | Metropolitan Archdiocese of Damascus (Syriac Rite) was established |
| 1659.01.28 | Syria | Archdiocese of Aleppo (Syriac Rite) was established (without ecclesiastical province) |
| 1678 | Syria | Metropolitan Archdiocese of Homs (Syriac Rite) was established |
| 1702 | Lebanon | Patriarchal See of Antioch (Syriac Rite) was suppressed |
| 1750 |  Israel | Archdiocese of Jerusalem (Syriac Rite) was established |
| 1781 | Lebanon | Patriarchal See of Antioch (Syriac Rite) was restored |
| 1783 | Turkiye | Diocese of Mardin (Syriac Rite) was established |
| 1790 |  Iraq | Archdiocese of Mossul (Syriac Rite) was established (without ecclesiastical province) |
| 1800 | Israel | Archdiocese of Jerusalem (Syriac Rite) was suppressed |
| 1800 | Syria | Diocese of Hama (Syriac Rite) was established |
| 1800 | Syria | Diocese of Nabk (Syriac Rite) was established |
| 1817 | Lebanon | Diocese of Beirut (Syriac Rite) was established (became suffragan of Antioch) |
| 1850 | Syria | Diocese of Hama (Syriac Rite) was suppressed (to Metropolitan Archdiocese of Homs and united to Metropolitan Archdiocese of Homs) |
| 1850 | Syria | Diocese of Nabk (Syriac Rite) was suppressed (to Metropolitan Archdiocese of Homs and united to Metropolitan Archdiocese of Homs) |
| 1862.09.28 | Iraq | Archdiocese of Baghdad (Syriac Rite) was established (without ecclesiastical province) |
| 1862.09.28 | Turkiye | Diocese of Amida (Syriac Rite) was established |
| 1863 | Turkiye | Diocese of Gazireh (Syriac Rite) was established |
| 1888.05.01 | Turkiye | Diocese of Amida (Syriac Rite) was suppressed (to Diocese of Mardin and Amida) |
| 1888.05.01 | Turkiye | Diocese of Mardin (Syriac Rite) was renamed as Diocese of Mardin and Amida (gained territory from the suppressed Diocese of Amida) |
| 1900 | Lebanon | Titular Episcopal See of Tripolis in Libanum (Syriac Rite) was suppressed |
| 1914 | Syria | Titular Episcopal See of Arethusa (Syriac Rite) was renamed as Titular Episcopal See of Arethusus |
| 1922 | Turkiye | Titular Episcopal See of Bathna (Syriac Rite) was renamed as Titular Episcopal See of Bathna |
| 1923 | Turkiye | Titular Episcopal See of Bathna (Syriac Rite) was renamed as Titular Episcopal See of Bathna |
| 1924 | Turkiye | Titular Episcopal See of Bathna (Syriac Rite) was renamed as Titular Episcopal See of Batna |
| 1925 | Greece | Titular Episcopal See of Anastasiopolis (Syriac Rite) was suppressed |
| 1925 | Syria | Titular Episcopal See of Arethusus (Syriac Rite) was renamed as Titular Episcopal See of Arethusa |
| 1925 | Turkiye | Titular Episcopal See of Batna (Syriac Rite) was renamed as Titular Episcopal See of Bahtna |
| 1925 | Titular Episcopal See of Ioppe (Syriac Rite) was suppressed | |
| 1926 | Syria | Titular Episcopal See of Hierapolis (Syriac Rite) was renamed as Titular Episcopal See of Hierapolis |
| 1926 | Turkiye | Titular Episcopal See of Phoba (Syriac Rite) was established |
| 1926 | Titular Episcopal See of Ioppe (Syriac Rite) was restored | |
| 1927 | Titular Episcopal See of Ioppe (Syriac Rite) was suppressed | |
| 1929 | Turkiye | Titular Episcopal See of Bahtna (Syriac Rite) was renamed as Titular Episcopal See of Bahtnæ |
| 1929 | Turkiye | Titular Episcopal See of Martyropolis (Syriac Rite) was suppressed |
| 1929 | Turkiye | Titular Episcopal See of Phoba (Syriac Rite) was suppressed |
| 1930 | Turkiye | Titular Episcopal See of Bahtnæ (Syriac Rite) was renamed as Titular Episcopal See of Bahtnæ |
| 1933 | Syria | Titular Episcopal See of Hierapolis (Syriac Rite) was renamed as Titular Episcopal See of Hierapolis in Syria |
| 1933 | Turkiye | Titular Episcopal See of Bahtnæ (Syriac Rite) was suppressed |
| 1944 | Turkiye | Titular Archiepiscopal See of Edessa in Osrhoëne (Syriac Rite) was established |
| 1957 | Turkiye | Diocese of Gazireh (Syriac Rite) was suppressed |
| 1957.07.15 | Syria | Diocese of Hassaké (Syriac Rite) was established (without ecclesiastical province) |
| 1963 | Syria | Titular Metropolitan See of Apamea in Syria (Syriac Rite) was established |
| 1963 | Turkiye | Titular Metropolitan See of Amida (Syriac Rite) was restored |
| 1963 | Turkiye | Titular Episcopal See of Batnæ (Syriac Rite) was restored |
| 1964.12.03 | Syria | Diocese of Hassaké (Syriac Rite) was promoted as Archdiocese of Hassaké–Nisibi |
| 1965.12.03 |  Egypt | Diocese of Cairo (Syriac Rite) was established (without ecclesiastical province) |
| 1972 | Turkiye | Diocese of Mardin and Amida (Syriac Rite) was suppressed |
| 1979 | Turkiye | Titular Episcopal See of Dara Syrorum (Syriac Rite) was restored |
| 1986 | Iraq | Titular Metropolitan See of Tagritum (Syriac Rite) was established |
| 1991 | Iraq | Patriarchal Exarchate of Basra and the Gulf (Syriac Rite) was established |
| 1991 | Lebanon | Patriarchal Exarchate of Lebanon (Syriac Rite) was established |
| 1991 |  Palestine, Israel,  Jordan | Patriarchal Exarchate of Jerusalem (Palestine and Jordan) (Syriac Rite) was established |
| 1991 | Turkiye | Patriarchal Exarchate of Turkiye (Syriac Rite) was established |
| 1995.11.06 |  USA | Diocese of Our Lady of Deliverance of Newark (Syriac Rite) was established (without ecclesiastical province) |
| 1997 | Lebanon | Patriarchal Exarchate of Lebanon (Syriac Rite) was suppressed |
| 1997 |  Sudan,  South Sudan | Territory Dependent on the Patriarch of Sudan (Syriac Rite) was established |
| 2001.06.22 |  Venezuela | Apostolic Exarchate of Venezuela (Syriac Rite) was established |
| 2013 | Sudan, South Sudan | Territory Dependent on the Patriarch of Sudan (Syriac Rite) was renamed as Territory Dependent on the Patriarch of Sudan and South Sudan |
| 2016.01.07 |  Canada | Apostolic Exarchate of Canada (Syriac Rite) was established (from Diocese of Our Lady of Deliverance of Newark) |
| 2019.06.28 | Iraq | Diocese of Adiabene (Syriac Rite) was established (from Archdiocese of Mossul and without ecclesiastical province) |
| 2020.09.10 | Iraq | Titular Metropolitan See of Tagritum (Syriac Rite) was demoted as Titular Episcopal See of Tagritum |
| 2021.06.28 | USA | Diocese of Our Lady of Deliverance of Newark (Syriac Rite) was renamed as Diocese of Our Lady of Deliverance in the United States |
