 | 1967 | 1968 | 1969 |  |
Date | Country | Change |
| 1968 |  Austria | Titular Episcopal See of Aguntum was restored |
| 1968 | Austria | Titular Metropolitan See of Lauriacum was restored |
| 1968 | Austria | Titular Metropolitan See of Tiburnia was restored |
| 1968 | Austria | Titular Episcopal See of Virunum was restored |
| 1968 |  Bulgaria | Titular Episcopal See of Nicopolis ad Iaterum was renamed as Titular Episcopal See of Nicopolis ad Iaternum |
| 1968 |  England | Titular Episcopal See of Mercia was restored |
| 1968 |  Iceland | Titular Episcopal See of Skálholt was restored |
| 1968 |  Italy | Titular Episcopal See of Agropoli was restored |
| 1968 | Italy | Titular Episcopal See of Alessano was restored |
| 1968 | Italy | Titular Episcopal See of Altino was restored |
| 1968 | Italy | Titular Episcopal See of Anzio was restored |
| 1968 | Italy | Titular Episcopal See of Aquaviva was restored |
| 1968 | Italy | Titular Metropolitan See of Aquileia was established (from former Patriarchal See of Aquileia) |
| 1968 | Italy | Titular Episcopal See of Asolo was restored |
| 1968 | Italy | Titular Episcopal See of Atella was restored |
| 1968 | Italy | Titular Episcopal See of Belcastro was restored |
| 1968 | Italy | Titular Episcopal See of Bettona was restored |
| 1968 | Italy | Titular Episcopal See of Bevagna was restored |
| 1968 | Italy | Titular Episcopal See of Bitetto was restored |
| 1968 | Italy | Titular Episcopal See of Brescello was restored |
| 1968 | Italy | Titular Episcopal See of Campli was restored |
| 1968 | Italy | Titular Episcopal See of Caorle was restored |
| 1968 | Italy | Titular Episcopal See of Capri was restored |
| 1968 | Italy | Titular Episcopal See of Carini was restored |
| 1968 | Italy | Titular Episcopal See of Carinola was restored |
| 1968 | Italy | Titular Episcopal See of Castro was restored |
| 1968 | Italy | Titular Episcopal See of Castro was restored |
| 1968 | Italy | Titular Episcopal See of Castro was restored |
| 1968 | Italy | Titular Episcopal See of Cerenza was restored |
| 1968 | Italy | Titular Episcopal See of Cerveteri was restored |
| 1968 | Italy | Titular Episcopal See of Città Ducale was restored |
| 1968 | Italy | Titular Episcopal See of Civitate was restored |
| 1968 | Italy | Titular Episcopal See of Dolia was restored |
| 1968 | Italy | Titular Episcopal See of Dragonara was restored |
| 1968 | Italy | Titular Episcopal See of Fiorentino was restored |
| 1968 | Italy | Titular Episcopal See of Fondi was restored |
| 1968 | Italy | Titular Episcopal See of Forlimpopoli was restored (from Diocese of Bertinoro) |
| 1968 | Italy | Titular Episcopal See of Formia was restored |
| 1968 | Italy | Titular Episcopal See of Forum Traiani was restored |
| 1968 | Italy | Titular Metropolitan See of Grado was established (from former Patriarchal See of Grado) |
| 1968 | Italy | Titular Episcopal See of Guardialfiera was restored |
| 1968 | Italy | Titular Episcopal See of Isola was restored |
| 1968 | Italy | Titular Episcopal See of Labico was restored |
| 1968 | Italy | Titular Episcopal See of Lavello was restored |
| 1968 | Italy | Titular Episcopal See of Lentini was restored |
| 1968 | Italy | Titular Episcopal See of Lesina was restored |
| 1968 | Italy | Titular Episcopal See of Lettere was restored |
| 1968 | Italy | Titular Episcopal See of Malamocco was suppressed |
| 1968 | Italy | Titular Episcopal See of Martirano was restored |
| 1968 | Italy | Titular Episcopal See of Massa Lubrense was restored |
| 1968 | Italy | Titular Episcopal See of Minervino Murge was restored |
| 1968 | Italy | Titular Episcopal See of Minori was restored |
| 1968 | Italy | Titular Episcopal See of Minturno was restored |
| 1968 | Italy | Titular Episcopal See of Montecorvino was restored |
| 1968 | Italy | Titular Episcopal See of Montemarano was restored |
| 1968 | Italy | Titular Episcopal See of Monteverde was restored |
| 1968 | Italy | Titular Episcopal See of Mottola was restored |
| 1968 | Italy | Titular Episcopal See of Oderzo was restored |
| 1968 | Italy | Titular Episcopal See of Otricoli was restored |
| 1968 | Italy | Titular Episcopal See of Passo Corese was restored |
| 1968 | Italy | Titular Episcopal See of Ploaghe was restored |
| 1968 | Italy | Titular Episcopal See of Polignano was restored |
| 1968 | Italy | Titular Episcopal See of Potenza Picena was restored |
| 1968 | Italy | Titular Episcopal See of Ravello was restored |
| 1968 | Italy | Titular Episcopal See of Sala Consilina was restored |
| 1968 | Italy | Titular Episcopal See of San Leone was restored |
| 1968 | Italy | Titular Episcopal See of Santa Giusta was restored |
| 1968 | Italy | Titular Episcopal See of Satriano was restored |
| 1968 | Italy | Titular Episcopal See of Scala was restored |
| 1968 | Italy | Titular Episcopal See of Sorres was restored |
| 1968 | Italy | Titular Episcopal See of Spello was restored |
| 1968 | Italy | Titular Episcopal See of Suelli was restored |
| 1968 | Italy | Titular Episcopal See of Tauriano was restored |
| 1968 | Italy | Titular Episcopal See of Termini Imerese was restored |
| 1968 | Italy | Titular Episcopal See of Tindari was restored |
| 1968 | Italy | Titular Episcopal See of Torcello was restored |
| 1968 | Italy | Titular Episcopal See of Tortiboli was restored |
| 1968 | Italy | Titular Episcopal See of Trevi was restored |
| 1968 | Italy | Titular Episcopal See of Trevico was restored |
| 1968 | Italy | Titular Episcopal See of Troina was restored |
| 1968 | Italy | Titular Episcopal See of Urbisaglia was restored |
| 1968 | Italy | Titular Episcopal See of Vescovìo was restored |
| 1968 | Italy | Titular Episcopal See of Vibo Valentia was restored |
| 1968 | Italy | Titular Episcopal See of Vico Equense was restored |
| 1968 | Italy | Titular Episcopal See of Vulturara was restored |
| 1968 |  Spain | Titular Episcopal See of Elo was established |
| 1968.01.11 |  Cameroon | Apostolic Prefecture of Bafia was promoted as Diocese of Bafia (became suffragan of Yaoundé) |
| 1968.01.11 |  Kenya | Apostolic Prefecture of Lodwar was established (from Diocese of Eldoret) |
| 1968.01.11 | Kenya | Diocese of Nakuru was established (from Metropolitan Archdiocese of Nairobi, Diocese of Eldoret and Diocese of Kisumu and became suffragan of Nairobi) |
| 1968.01.20 |  Brazil | Diocese of Paranavaí was established (from Diocese of Maringá and became suffragan of Curitiba) |
| 1968.01.25 |  Serbia | Apostolic Administration of Jugoslavenska Bačka was promoted as Diocese of Subotica (without ecclesiastical province) |
| 1968.01.29 |  Canada | Diocese of Churchill was renamed as Diocese of Churchill–Baie d’Hudson |
| 1968.02.09 |  Argentina | Apostolic Exarchate of Argentina (Ukrainian Rite) was established |
| 1968.02.16 |  Tanzania | Diocese of Njombe was established (from Diocese of Iringa and Territorial Abbacy of Peramiho and became suffragan of Dar-es-Salaam) |
| 1968.03.02 | Brazil | Diocese of Itapeva was established (from Metropolitan Archdiocese of Botucatu, Diocese of Santos and Diocese of Sorocaba and became suffragan of São Paulo) |
| 1968.03.02 |  USA | Diocese of Miami was promoted as Metropolitan Archdiocese of Miami (with suffragan sees Orlando, Saint Augustine and Saint Petersburg and lost territory to establish Diocese of Orlando and Diocese of Saint Petersburg) |
| 1968.03.02 | USA | Diocese of Mobile–Birmingham lost territory to Diocese of Saint Augustine |
| 1968.03.02 | USA | Diocese of Orlando was established (from Diocese of Miami and Diocese of Saint Augustine and became suffragan of Miami) |
| 1968.03.02 | USA | Diocese of Saint Petersburg was established (from Diocese of Miami and Diocese of Saint Augustine and became suffragan of Miami) |
| 1968.03.07 |  Iraq | Archdiocese of Erbil (Chaldean Rite) was established (from Metropolitan Archdiocese of Kirkuk and without ecclesiastical province) |
| 1968.03.07 | Iraq | Diocese of Sulaimaniya (Chaldean Rite) was established (became suffragan of Kirkuk) |
| 1968.03.11 |  Benin | Diocese of Lokossa was established (from Metropolitan Archdiocese of Cotonou and became suffragan of Cotonou) |
| 1968.03.11 | Cameroon | Apostolic Prefecture of Maroua–Mokolo was established (from Diocese of Garoua) |
| 1968.03.11 | Cameroon | Apostolic Prefecture of Yagoua was established (from Diocese of Garoua) |
| 1968.03.22 |  Malaysia | Apostolic Vicariate of Jesselton was renamed as Apostolic Vicariate of Kota Kinabalu |
| 1968.03.23 |  Philippines | Diocese of Maasin was established (from Diocese of Palo and became suffragan of Cebu) |
| 1968.03.23 | Philippines | Diocese of Masbate was established (from Diocese of Sorsogon and became suffragan of Caceres) |
| 1968.03.25 |  El Salvador | Military Vicariate of El Salvador was established |
| 1968.03.25 |  Paraguay | Territorial Prelature of Alto Paraná was established (from Territorial Prelature of Encarnación y Alto Paraná and became suffragan of Asunción) |
| 1968.03.25 | Paraguay | Territorial Prelature of Encarnación y Alto Paraná was renamed as Territorial Prelature of Encarnación (lost territory to establish Territorial Prelature of Alto Paraná) |
| 1968.04.09 |  Indonesia | Apostolic Prefecture of Sekadau was established (from Metropolitan Archdiocese of Pontianak and Diocese of Ketapang) |
| 1968.04.09 |  Madagascar | Diocese of Mananjary was established (from Metropolitan Archdiocese of Fianarantsoa and Diocese of Tamatave and became suffragan of Fianarantsoa) |
| 1968.04.15 |  Zambia | Diocese of Fort Jameson was renamed as Diocese of Chipata |
| 1968.04.20 |  Colombia | Diocese of Sonsón was renamed as Diocese of Sonsón–Rionegro |
| 1968.04.26 |  Peru | Territorial Prelature of Chuquibambilla was established (from Diocese of Abancay and became suffragan of Cusco) |
| 1968.04.30 |  Guatemala | Apostolic Administration of Izabal was established (from Diocese of Zacapa) |
| 1968.05.04 |  India | Apostolic Prefecture of Kashmir and Jammu was renamed as Apostolic Prefecture of Jammu and Kashmir |
| 1968.05.11 | Brazil | Territorial Abbacy of Claraval was established (from Diocese of Guaxupé and became suffragan of Pouso Alegre) |
| 1968.06.08 |  Cote d’Ivoire | Diocese of Man was established (from Diocese of Daloa and became suffragan of Abidjan) |
| 1968.06.08 | India | Apostolic Prefecture of Balasore was established (from Metropolitan Archdiocese of Calcutta) |
| 1968.06.10 |  Mexico | Territorial Prelature of El Salto was established (from Metropolitan Archdiocese of Durango and Diocese of Mazatlán and became suffragan of Durango) |
| 1968.06.22 | Brazil | Diocese of Bacabal was established (from Metropolitan Archdiocese of São Luís do Maranhão and Territorial Prelature of São José do Grajaú and became suffragan of São Luís do Maranhão) |
| 1968.06.22 | Brazil | Diocese of Caxias do Maranhão lost territory to Territorial Prelature of Santo Antônio de Balsas |
| 1968.06.26 |  Ecuador | Diocese of Azogues was established (from Metropolitan Archdiocese of Cuenca and became suffragan of Cuenca) |
| 1968.07.12 |  Uganda | Diocese of Lira was established (from Diocese of Gulu and became suffragan of Kampala) |
| 1968.07.29 | India | Diocese of Amravati lost territory to Apostolic Exarchate of Chanda |
| 1968.07.29 | India | Ordinariate of Chanda (Syro-Malabar Rite) was promoted as Apostolic Exarchate of Chanda (gained territory from Diocese of Amravati) |
| 1968.07.29 | India | Apostolic Exarchate of Sagar (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Bhopal and became suffragan of Bhopal) |
| 1968.07.29 | India | Apostolic Exarchate of Satna (Syro-Malabar Rite) was established (from Diocese of Jabalpur and became suffragan of Bhopal) |
| 1968.07.29 | India | Apostolic Exarchate of Ujjain (Syro-Malabar Rite) was established (from Diocese of Indore and became suffragan of Bhopal) |
| 1968.09.05 |  Burundi | Diocese of Muyinga was established (from Diocese of Ngozi and became suffragan of Gitega) |
| 1968.09.05 |  Rwanda | Diocese of Kibungo was established (from Metropolitan Archdiocese of Kabgayi and became suffragan of Kabgayi) |
| 1968.09.23 |  Cambodia | Apostolic Prefecture of Bătdâmbâng was established (from Apostolic Vicariate of Phnom Penh) |
| 1968.09.23 | Cambodia | Apostolic Prefecture of Kompong Cham was established (from Apostolic Vicariate of Phnom Penh) |
| 1968.09.26 |  Nigeria | Apostolic Prefecture of Idah was established (from Diocese of Lokoja) |
| 1968.10.18 |  Burkina Faso | Diocese of Diébougou was established (from Diocese of Bobo-Dioulasso and became suffragan of Ouagadougou) |
| 1968.10.18 | Iceland | Apostolic Vicariate of Islanda was promoted as Diocese of Reykjavík (without ecclesiastical province) |
| 1968.10.21 |  Puerto Rico | Diocese of Arecibo lost territory to Metropolitan Archdiocese of San Juan de Puerto Rico |
| 1968.11.22 |  Slovenia | Archdiocese of Ljubljana was promoted as Metropolitan Archdiocese of Ljubljana (with suffragan see Maribor) |
| 1968.11.23 | Brazil | Diocese of Caçador was established (from Diocese of Lages and became suffragan of Florianópolis) |
| 1968.11.23 | Brazil | Diocese of Rio do Sul was established (from Metropolitan Archdiocese of Florianópolis and Diocese of Joinville and became suffragan of Florianópolis) |
| 1968.12.08 | Austria | Diocese of Feldkirch was established (from Diocese of Innsbruck–Feldkirch and became suffragan of Salzburg) |
| 1968.12.08 | Austria | Diocese of Innsbruck–Feldkirch was renamed as Diocese of Innsbruck (lost territory to establish Diocese of Feldkirch) |
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