 | 6ᵗʰ century | 7ᵗʰ century | 8ᵗʰ century |  |
| 6ᵗʰ century | 7ᵗʰ century | 8ᵗʰ century | |
Date | Country | Change |
| 601 |  England | Diocese of Canterbury was promoted as Metropolitan Archdiocese of Canterbury (with suffragan sees Bangor and Saint Asaph) |
| 602 |  Italy | Diocese of Carini was restored (from Diocese of Reggio Calabria) |
| 604 | England | Diocese of London was established (became suffragan of Canterbury) |
| 604 | England | Diocese of Rochester was established (from Metropolitan Archdiocese of Canterbury) |
| 610 | Italy | Diocese of Meria was renamed as Diocese of Tropea |
| 620 |  Ireland | Abbacy nullius of Kilmacduagh was established |
| 623 |  Spain | Metropolitan Archdiocese of Cartagena was renamed as Metropolitan Archdiocese of Cartagena–Bigastro |
| 625 | Ireland | Abbacy nullius of Leighlin was established |
| 628.06.11 | Italy | Abbacy nullius of San Colombano was established (from Diocese of Piacenza) |
| 630 | England | Diocese of Dunwich was established (became suffragan of Canterbury) |
| 630 | Ireland | Abbacy nullius of Lismore was established |
| 634 | England | Diocese of Dorchester was established |
| 634 | England | Abbacy nullius of Lindisfarne was established |
| 635 | Italy | Diocese of Eraclea was established (from the suppressed Diocese of Oderzo) |
| 635 | Italy | Diocese of Oderzo was suppressed (to establish Diocese of Eraclea) |
| 639 |  Greece | Diocese of Epidaurum was suppressed |
| 639 | Italy | Diocese of Altino was suppressed (to Diocese of Treviso and to establish Diocese of Torcello) |
| 639 | Italy | Diocese of Torcello was established (from the suppressed Diocese of Altino) |
| 640 | Ireland | Abbacy nullius of Killaloe was established |
| 640 | Italy | Diocese of Adria was established (became suffragan of Ravenna) |
| 650 |  Croatia | Metropolitan Archdiocese of Salona was renamed as Metropolitan Archdiocese of Split |
| 650 | Ireland | Abbacy nullius of Mayo was established |
| 650 |  Turkiye | Diocese of Aristium was suppressed |
| 653 | Italy | Diocese of Terni was restored (from Diocese of Narni) |
| 656 | England | Diocese of Mercia was established (from Diocese of York) |
| 660 | England | Diocese of Dorchester was suppressed (to establish Diocese of Winchester) |
| 660 | England | Diocese of Winchester was established (from the suppressed Diocese of Dorchester) |
| 664 | England | Abbacy nullius of Lindisfarne was suppressed (to Diocese of York) |
| 668 | Italy | Diocese of Eca lost territory to Diocese of Benevento |
| 669 | England | Diocese of Mercia was renamed as Diocese of Lichfield |
| 670 | England | Diocese of Leicester was restored |
| 670 | Italy | Diocese of Ceneda was established (from Diocese of Eraclea and became suffragan of Aquileia) |
| 670 | Italy | Diocese of Eraclea lost territory to Diocese of Treviso |
| 670 | Italy | Diocese of Sovana was established (became suffragan of Roma) |
| 670 | Italy | Diocese of Ventimiglia was established (became suffragan of Milano) |
| 673 | England | Diocese of Elmham was established (from Diocese of Dunwich and became suffragan of Canterbury) |
| 674 | Italy | Diocese of Brindisi was renamed as Diocese of Brindisi–Oria |
| 676 | England | Diocese of Hereford was established |
| 678 | England | Diocese of Hexham was established (from Diocese of York) |
| 678 | England | Diocese of Lindisfarne was restored (from Diocese of York) |
| 680 | England | Diocese of Worcester was established |
| 680 | Italy | Diocese of Bisenzio was suppressed (to establish Diocese of Castro del Lazio) |
| 680 | Italy | Diocese of Brescello was suppressed (to establish Diocese of Parma) |
| 680 | Italy | Diocese of Castro del Lazio was established (from the suppressed Diocese of Bisenzio) |
| 680 | Italy | Diocese of Cefalù was established (became suffragan of Siracusa) |
| 680 | Italy | Diocese of Parma was restored (from the suppressed Diocese of Brescello and became suffragan of Milano) |
| 680 | Italy | Diocese of Siracusa was promoted as Metropolitan Archdiocese of Siracusa (with suffragan sees Cefalù and Messina) |
| 680 | Italy | Diocese of Vado Ligure was established (became suffragan of Milano) |
| 681 | England | Diocese of Selsey was established |
| 681 | Spain | Metropolitan Archdiocese of Cartagena–Bigastro was demoted as Diocese of Cartagena–Bigastro |
| 682 | Italy | Diocese of Castro was established |
| 688 |  Portugal | Diocese of Ossonoba was suppressed |
| 690 | Italy | Diocese of Bolsena was suppressed (to Diocese of Orvieto) |
| 693 | Portugal | Diocese of Caliábria was suppressed |
| 693 | Spain | Diocese of Palencia was suppressed |
| 695 |  Netherlands | Diocese of Utrecht was established |
| 696 |  Austria | Abbacy nullius of Stift Sankt Peter Salzburg was restored (from former Diocese of Virunum) |
| 700 |  Algeria | Diocese of Constantine was suppressed |
| 700 | Algeria | Titular Episcopal See of Icosium was restored |
| 700 | Croatia | Diocese of Sisak was suppressed |
| 700 |  Egypt | Diocese of Rhinocolura was suppressed |
| 700 |  France | Diocese of Arisitum was suppressed (to Diocese of Nîmes) |
| 700 | Ireland | Abbacy nullius of Raphoe was established |
| 700 | Italy | Diocese of Alessano was established |
| 700 | Italy | Diocese of Bisarcio was established |
| 700 | Italy | Diocese of Bussento was suppressed |
| 700 | Italy | Diocese of Pitinum Merges was renamed as Diocese of Cagli |
| 700 | Italy | Diocese of Comacchio was established (became suffragan of Ravenna) |
| 700 | Italy | Diocese of Ferento was suppressed (to Diocese of Bomarzo) |
| 700 | Italy | Diocese of Fidene was suppressed |
| 700 | Italy | Diocese of Gallese was established |
| 700 | Italy | Diocese of Grumentum was suppressed |
| 700 | Italy | Diocese of Miseno was suppressed (to Diocese of Cuma) |
| 700 | Italy | Diocese of Orte was established |
| 700 | Italy | Diocese of Ortona was suppressed (to Diocese of Chieti) |
| 700 | Italy | Diocese of Otricoli was suppressed (to Diocese of Narni) |
| 700 | Italy | Diocese of Polignano was established |
| 700 | Italy | Abbacy nullius of Pomposa was established |
| 700 | Italy | Diocese of Rosella was established |
| 700 | Italy | Diocese of Tharros was renamed as Diocese of Sinis-Tharros |
| 700 | Italy | Diocese of Sulci was suppressed |
| 700 | Italy | Diocese of Trento lost territory to Diocese of Feltre and Diocese of Sabiana |
| 700 |  Scotland | Diocese of Glasgow was suppressed |
| 700 | Spain | Diocese of Egara was suppressed (to Diocese of Barcelona) |
| 700 | Spain | Diocese of Ibiza was suppressed |
| 700 | Spain | Diocese of Mallorca was suppressed |
| 700 | Spain | Diocese of Oreto was suppressed |
| 700 | Spain | Diocese of Segorbe was suppressed |
| 700 | Spain | Diocese of Tarazona was suppressed |
| 700 | Spain | Diocese of Tortosa was suppressed |
| 700 | Spain | Diocese of Tui was suppressed |
| 700 | Spain | Diocese of Ávila was suppressed |
| 700 |  Tunisia | Diocese of Abitinæ was suppressed |
| 700 | Tunisia | Diocese of Ruspæ was suppressed |
| 700 | Tunisia | Diocese of Utica was suppressed |
| 6ᵗʰ century | 7ᵗʰ century | 8ᵗʰ century | |
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