Date | Country | Change |
| 1982 |  Italy | Titular Episcopal See of Trevi nel Lazio was suppressed |
| 1982 |  Slovakia | Diocese of Košice lost territory to Metropolitan Archdiocese of Eger |
| 1982 | Slovakia | Diocese of Rožňava lost territory to Metropolitan Archdiocese of Eger |
| 1982.01.11 |  USA | Apostolic Exarchate of United States of America (Chaldean Rite) was established |
| 1982.01.11 | USA,  Canada | Apostolic Exarchate of United States of America (Romanian Rite) was established |
| 1982.02.06 |  Brazil | Diocese of Sinop was established (from Diocese of Diamantino and became suffragan of Cuiabá) |
| 1982.02.27 | Brazil | Diocese of Barra do Garças was established (from Diocese of Guiratinga and became suffragan of Cuiabá) |
| 1982.02.27 | Canada | Diocese of Saint-Jean-de-Québec was renamed as Diocese of Saint-Jean–Longueuil |
| 1982.02.27 | Italy | Metropolitan Archdiocese of Boiano–Campobasso was renamed as Metropolitan Archdiocese of Campobasso–Boiano |
| 1982.03.01 | Canada | Diocese of Hull was renamed as Diocese of Gatineau–Hull |
| 1982.03.02 | Italy | Metropolitan Archdiocese of Lanciano was demoted as Archdiocese of Lanciano (became suffragan of Chieti) |
| 1982.03.02 | Italy | Diocese of Penne e Pescara was promoted as Metropolitan Archdiocese of Pescara–Penne (with suffragan sees Atri and Teramo) |
| 1982.03.12 |  Australia | Abbacy nullius of New Norcia was suppressed (to Metropolitan Archdiocese of Perth) |
| 1982.03.18 |  Cameroon | Diocese of Bamenda was promoted as Metropolitan Archdiocese of Bamenda (with suffragan sees Buéa and Kumbo and lost territory to establish Diocese of Kumbo) |
| 1982.03.18 | Cameroon | Diocese of Douala was promoted as Metropolitan Archdiocese of Douala (with suffragan sees Bafoussam and Nkongsamba) |
| 1982.03.18 | Cameroon | Diocese of Garoua was promoted as Metropolitan Archdiocese of Garoua (with suffragan sees Maroua–Mokolo and Yagoua) |
| 1982.03.18 | Cameroon | Diocese of Kumbo was established (from Diocese of Bamenda and became suffragan of Bamenda) |
| 1982.03.18 |  Papua New Guinea | Diocese of Mount Hagen was promoted as Metropolitan Archdiocese of Mount Hagen (with suffragan sees Goroka, Mendi and Wabag and lost territory to establish Diocese of Wabag) |
| 1982.03.18 | Papua New Guinea | Diocese of Wabag was established (from Diocese of Mount Hagen and became suffragan of Mount Hagen) |
| 1982.03.18 |  Sri Lanka | Apostolic Prefecture of Anuradhapura was promoted as Diocese of Anuradhapura |
| 1982.04.13 | USA | Diocese of Victoria was established (from Metropolitan Archdiocese of San Antonio, Diocese of Corpus Christi and Diocese of Galveston–Houston and became suffragan of San Antonio) |
| 1982.05.02 |  England | Diocese of Leeds lost territory to Diocese of Middlesbrough |
| 1982.06.08 |  Cote d’Ivoire | Diocese of Grand-Bassam was established (from Metropolitan Archdiocese of Abidjan and became suffragan of Abidjan) |
| 1982.06.08 | Cote d’Ivoire | Diocese of Yopougon was established (from Metropolitan Archdiocese of Abidjan and became suffragan of Abidjan) |
| 1982.06.08 |  Indonesia | Apostolic Prefecture of Sekadau was promoted as Diocese of Sanggau (became suffragan of Pontianak) |
| 1982.06.08 | Papua New Guinea | Diocese of Kundiawa was established (from Diocese of Goroka and became suffragan of Mount Hagen) |
| 1982.06.18 |  Nicaragua | Territorial Prelature of Jinotega was established (from Diocese of Matagalpa and became suffragan of Managua) |
| 1982.06.24 | Australia,  New Zealand | Apostolic Vicariate of Australia (Ukrainian Rite) was promoted as Diocese of Saints Peter and Paul of Melbourne (became suffragan of Melbourne) |
| 1982.06.25 |  Zimbabwe | Apostolic Prefecture of Sinoia was renamed as Apostolic Prefecture of Chinhoyi |
| 1982.06.25 | Zimbabwe | Diocese of Gwelo was renamed as Diocese of Gweru |
| 1982.06.25 | Zimbabwe | Metropolitan Archdiocese of Salisbury was renamed as Metropolitan Archdiocese of Harare |
| 1982.06.25 | Zimbabwe | Diocese of Umtali was renamed as Diocese of Mutare |
| 1982.08.05 |  Hungary | Diocese of Csanád was renamed as Diocese of Szeged–Csanád (gained territory from Diocese of Oradea Mare) |
| 1982.08.05 |  Romania | Diocese of Oradea Mare lost territory to Diocese of Szeged–Csanád |
| 1982.08.17 | USA | Diocese of Las Cruces was established (from Metropolitan Archdiocese of Santa Fe and Diocese of El Paso and became suffragan of Santa Fe) |
| 1982.08.27 | Canada | Diocese of Saint-Maron de Montréal (Maronite Rite) was established (without ecclesiastical province) |
| 1982.09.03 |  Ethiopia | Apostolic Vicariate of Gimma was renamed as Apostolic Vicariate of Nekemte |
| 1982.09.10 |  American Samoa | Diocese of Samoa–Pago Pago was established (from Diocese of Samoa and Tokelau and became suffragan of Samoa–Apia and Tokelau) |
| 1982.09.10 |  Kiribati,  Nauru | Diocese of Tarawa, Nauru and Funafuti was renamed as Diocese of Tarawa and Nauru (lost territory to establish Mission sui juris of Funafuti) |
| 1982.09.10 |  Samoa | Diocese of Samoa and Tokelau was promoted as Metropolitan Archdiocese of Samoa–Apia and Tokelau (with suffragan sees Samoa–Pago Pago and Funafuti and lost territory to establish Diocese of Samoa–Pago Pago) |
| 1982.09.10 |  Tuvalu | Mission sui juris of Funafuti was established (from Diocese of Tarawa, Nauru and Funafuti and became suffragan of Samoa–Apia and Tokelau) |
| 1982.10.04 | Brazil | Diocese of Porto Velho was promoted as Metropolitan Archdiocese of Porto Velho (with suffragan sees Guajará-Mirim, Humaitá, Lábrea and Vila Rondônia) |
| 1982.10.07 |  Mexico | Territorial Prelature of Madera lost territory to Diocese of Ciudad Obregón |
| 1982.10.15 |  Equatorial Guinea | Diocese of Ebebiyín was established (from Diocese of Bata and became suffragan of Malabo) |
| 1982.10.15 | Equatorial Guinea | Diocese of Malabo was promoted as Metropolitan Archdiocese of Malabo (with suffragan sees Bata and Ebebiyín) |
| 1982.10.15 | Ethiopia | Apostolic Prefecture of Soddo–Hosanna was promoted as Apostolic Vicariate of Soddo–Hosanna |
| 1982.10.16 | Brazil | Diocese of Ituiutaba was established (from Metropolitan Archdiocese of Uberaba and Diocese of Uberlândia and became suffragan of Uberaba) |
| 1982.10.19 |  Bangladesh | Metropolitan Archdiocese of Dacca was renamed as Metropolitan Archdiocese of Dhaka |
| 1982.11.10 | Brazil | Diocese of Luz lost territory to Metropolitan Archdiocese of Uberaba |
| 1982.11.15 |  Philippines | Territorial Prelature of Bangued was promoted as Diocese of Bangued |
| 1982.11.15 | Philippines | Territorial Prelature of Bayombong was promoted as Diocese of Bayombong |
| 1982.11.15 | Philippines | Territorial Prelature of Iba was promoted as Diocese of Iba |
| 1982.11.15 | Philippines | Territorial Prelature of Iligan was promoted as Diocese of Iligan |
| 1982.11.15 | Philippines | Territorial Prelature of Kidapawan was promoted as Diocese of Kidapawan |
| 1982.11.15 | Philippines | Territorial Prelature of Malaybalay was promoted as Diocese of Malaybalay |
| 1982.11.15 | Philippines | Territorial Prelature of Marbel was promoted as Diocese of Marbel |
| 1982.11.15 | Philippines | Diocese of Palo was promoted as Metropolitan Archdiocese of Palo (with suffragan sees Borongan, Calbayog and Catarman) |
| 1982.11.15 | Philippines | Territorial Prelature of San Jose de Antique was promoted as Diocese of San Jose de Antique |
| 1982.11.19 | Cameroon | Diocese of Ngaoundéré was established (from Metropolitan Archdiocese of Garoua and became suffragan of Garoua) |
| 1982.11.19 |  South Africa | Apostolic Prefecture of Volksrust was promoted as Diocese of Dundee (became suffragan of Durban) |
| 1982.11.28 | Italy | Personal Prelature of Opus Dei was established (from the suppressed Secular Institute of Opus Dei and depended on Sacred Congregation for Bishops) |
| 1982.12.17 |  Egypt | Diocese of Ismayliah (Coptic Rite) was established (from Diocese of Alexandria and became suffragan of Alexandria) |
| 1982.12.17 |  Solomon Islands | Diocese of Auki was established (from Metropolitan Archdiocese of Honiara and became suffragan of Honiara) |
