A suffragan diocese is one of the dioceses other than the metropolitan archdiocese that constitute an ecclesiastical province. It exists in some Christian denominations, in particular the Catholic Church, the Coptic Orthodox Church of Alexandria, and the Romanian Orthodox Church.

In the Catholic Church, although such a diocese is governed by its own bishop or ordinary, who is the suffragan bishop, the metropolitan archbishop has in its regard certain rights and duties of oversight.^[specify] He has no power of governance within a suffragan diocese, but has some limited rights and duties^[specify] to intervene in cases of neglect by the authorities of the diocese itself.^[1]

• Suffragan bishop
• Suffragan Bishop in Europe (a title in the Church of England)
• List of Roman Catholic archdioceses (by country and continent)
• List of Roman Catholic dioceses (alphabetical) (including archdioceses)
• List of Roman Catholic dioceses (structured view) (including archdioceses)

v t e Eastern Orthodox Church
Autocephalous and autonomous churches of Eastern Orthodoxy
Autocephalous churches	Four ancient patriarchates Constantinople Bartholomew I Alexandria Theodore II Antioch John X Jerusalem Theophilos III Junior patriarchates Russia[a] Kirill Serbia Porfirije Bulgaria Daniil Romania Daniel Georgia Ilia II Autocephalous archdioceses/metropolises Cyprus George III Greece Ieronymos II Albania Anastasios Poland Sawa Czech Lands and Slovakia Rastislav America[b] Tikhon Ukraine[b] Epiphanius North Macedonia[b] Stefan
Autonomous churches	Sinai Finland (Ecumenical Patriarchate) Estonia (Ecumenical Patriarchate)[b] Japan (Moscow Patriarchate)[b] China (Moscow Patriarchate)[b] Ukraine (Moscow Patriarchate)[c] Americas (Romanian Patriarchate) Bessarabia (Romanian Patriarchate)[b] Moldova (Moscow Patriarchate)[b] Semi-autonomous churches Crete (Ecumenical Patriarchate) Estonia (Moscow Patriarchate)[d] Russian Orthodox Church Outside of Russia[d]
Diaspora Assemblies	Australia, New Zealand, and Oceania Austria Belgium, Holland, and Luxembourg Canada France Germany Great Britain and Ireland Italy and Malta Latin America Scandinavia Spain and Portugal Switzerland and Liechtenstein United States of America
History	Apostles in the New Testament First seven ecumenical councils Church Fathers Great Church State church of the Roman Empire East–West Schism Raskol Old Believers Catacomb Church Old Calendarists Moscow–Constantinople schisms 15th–16th c. 1996 2018
Liturgy	Byzantine Rite Liturgy of Saint John Chrysostom Liturgy of Saint Basil Liturgy of Saint James Liturgy of Saint Mark Western Rite
Other	Unrecognized Eastern Orthodox churches Eastern Orthodoxy by country Canon law of the Eastern Orthodox Church
Christianity portal ^ The ROC severed full communion with the Ecumenical Patriarchate in 2018, and later severed full communion with the primates of the Church of Greece, the Patriarchate of Alexandria, and the Church of Cyprus in 2020. ^ a b c d e f g h Autocephaly or autonomy is not universally recognized. ^ UOC-MP was moved to formally cut ties with the ROC as of May 27th 2022. ^ a b Semi-autonomous part of the Russian Orthodox Church whose autonomy is not universally recognized.

v t e Oriental Orthodoxy
Eastern Christian communion of autocephalous churches from Armenia, Egypt, Eritrea, Ethiopia, Sudan and parts of the Middle East, and India
Autocephalous churches	Coptic Orthodox Church Ethiopian Orthodox Tewahedo Church Armenian Apostolic Church Holy See of Cilicia Eritrean Orthodox Tewahedo Church Syriac Orthodox Church Malankara Orthodox Syrian Church
Autonomous churches	Armenian Apostolic: Armenian Patriarchate of Constantinople Armenian Patriarchate of Jerusalem Syriac Orthodox: Malankara Jacobite Malankara Orthodox Syrian Church: Brahmavar (Goan) Orthodox Church
Independent churches	British Isles Malabar Independent Syrian Church Syncretic Oriential Catholic Churches: Communion of Western Orthodox Churches Celtic Orthodox Church
Liturgy	Alexandrian Rite Anaphora of Saint Gregory Armenian Rite West Syriac Rite Liturgy of Saint James Liturgy of Saint Basil Liturgy of Saint Cyril Malankara Rite