| Date | Age | Event | Bishop | Title | Current Title |
| 1 Sep | 76.7 | Retired | Quesnel Alphonse, S.M.M. | Bishop of Fort-Liberté, Haïti | Bishop Emeritus |
| 61.6 | Installed | Fabio Baggio, C.S. | Cardinal, Pro-Prefect of the Dicastery for Promoting Integral Human Development |
| 41.3 | Installed | Jozef Barlaš | Secretary of the Dicastery for Promoting Integral Human Development |
| 80.1 | Retired | Michael Felix Czerny, S.J. | Prefect of the Dicastery for Promoting Integral Human Development | Cardinal, Prefect Emeritus |
| 75.2 | Retired | Maximino Martínez Miranda | Auxiliary Bishop of Toluca, México, México | Auxiliary Bishop Emeritus |
| 44.6 | Installed | Massimo Ralli | Under Secretary of the Dicastery for the Service of Charity |
| 61.4 | Installed | Lucio Adrian Ruiz | Secretary of the Dicastery for the Service of Charity |
| 58.8 | Appointed | Louis-Jean Sander | Bishop of Fort-Liberté, Haïti |
| 51.7 | Installed | Alessandra Smerilli, F.M.A. | Prefect of the Dicastery for Promoting Integral Human Development |
| 2 Sep | 74.0 | Resigned | Heinrich Timmerevers | Bishop of Dresden-Meißen (Meissen), Germany | Bishop Emeritus |
| 3 Sep | 75.8 | Retired | Balázs Bábel | Archbishop of Kalocsa-Kecskemét, Hungary | Archbishop Emeritus |
| 52.8 | Appointed | Andreas Kutschke | Administrator of Dresden-Meißen (Meissen), Germany |
| 62.4 | Appointed | Ferenc Palánki | Archbishop of Kalocsa-Kecskemét, Hungary |
| 4 Sep | 47.7 | Appointed | Serhii Kippa, O.F.M. Cap. | Auxiliary Bishop of Kyiv-Zhytomyr, Ukraine |
| 47.7 | Appointed | Serhii Kippa, O.F.M. Cap. | Titular Bishop of Marazanae | Auxiliary Bishop of Kyiv-Zhytomyr, Ukraine |
| 5 Sep | 51.2 | Ceased | Juan Fernando Franco Sánchez | Apostolic Administrator of Jericó, Colombia | Bishop of Caldas, Colombia |
| 48.2 | Ordained Bishop | Vincent Lawrence Mpwaji | Titular Bishop of Tacarata | Auxiliary Bishop of Dar-es-Salaam, Tanzania |
| 59.2 | Installed | Diego Luis Rendón Urrea | Bishop of Jericó, Colombia |
| 7 Sep | 90.3 | Died | Joseph Arnaouti, I.C.P.B. † | Patriarchal Exarch Emeritus of Damas (Armenian), Syria |
| 8 Sep | 44.9 | Ordained Bishop | Andrew Ding Yang | Archbishop of Chongqing [Chungking], China |
| 54.3 | Appointed | Júlio César Gomes Moreira | Bishop of Rubiataba-Mozarlândia, Goias, Brazil |
| 54.0 | Appointed | José Paulino
Francisco Neto | Bishop of Porto Nacional, Tocatins, Brazil | Bishop-Elect |
| 49.7 | Appointed | Gerardo Antonio Vargas Cruz, O.F.M. | Coadjutor Bishop of Fajardo-Humacao, Puerto Rico | Coadjutor Bishop-Elect |
| 10 Sep | 65.7 | Appointed | Crispin Barrete Varquez | Bishop of Tagbilaran, Philippines |
| 11 Sep | 64.4 | Resigned | Guido Gallese | Bishop of Alessandria (della Paglia), Italy | Bishop Emeritus |
| 74.3 | Appointed | Luigi Testore | Apostolic Administrator of Alessandria (della Paglia), Italy | Bishop of Acqui, Italy |
| 12 Sep | 52.4 | Appointed | Mario León Dorado, O.M.I. | Coadjutor Archbishop of Rabat, Morocco | Coadjutor Archbishop-Elect |
| 14 Sep | 58.2 | Appointed | Pedro Luis Fuentes Valencia, C.P. | Bishop of Bolivia, Military |
| 77.5 | Retired | Jan Sergiusz Gajek, M.I.C. | Apostolic Administrator of Belarus, Faithful of Byzantine Rite (Byzantine) | Apostolic Administrator Emeritus |
| 53.1 | Appointed | Liavoncij (Aliaksandr) Tumouski, M.S.U. | Apostolic Administrator of Belarus, Faithful of Byzantine Rite (Byzantine) |
| 15 Sep | 76.0 | Retired | Francis Ignatius Malone | Bishop of Shreveport, Louisiana, USA | Bishop Emeritus |
| 67.2 | Appointed | Robert William Marshall | Apostolic Administrator of Shreveport, Louisiana, USA | Bishop of Alexandria, Louisiana, USA |
| 67.2 | Appointed | Alfonso Raimo | Bishop of Terni-Narni-Amelia, Italy |
| 64.3 | Appointed | Michael Arsenio Saporito | Bishop of Metuchen, New Jersey, USA |
| 16 Sep | 63.3 | Appointed | Michele Di Tolve | Bishop of Chioggia, Italy |
| 52.1 | Appointed | Simone Renna | Rector |
| 17 Sep | 53.2 | Confirmed | Antonio (Juan Jesús) Bran Tecun, O.S.B. Oliv. | Abbot of Monte Oliveto Maggiore, Italy |
| 62.8 | Appointed | Brendan John Cahill | Bishop of Joliet in Illinois, USA |
| 73.5 | Resigned | Diego Maria (Gualtiero) Rosa, O.S.B. | Abbot of Monte Oliveto Maggiore, Italy | Abbot Emeritus |
| 18 Sep | 58.3 | Appointed | Antônio Fontinele de Melo | Bishop of Rio Branco, Acre, Brazil |
| 19 Sep | 82.2 | Died | Abraham Youlios Kackanatt † | Bishop Emeritus of Muvattupuzha (Syro-Malankara), India |
| 65.9 | Installed | Vitorino José Pereira Soares | Bishop of Faro {Algarve}, Portugal |
| 20 Sep | 61.4 | Installed | Michael Router | Bishop of Derry, Ireland |
| 21 Sep | 61.4 | Appointed | Víctor Alejandro Aguilar Ledesma | Bishop of Querétaro, México |
| 90.0 | Died | Dadeus Grings † | Archbishop Emeritus of Porto Alegre, Rio Grande do Sul, Brazil |
| 76.3 | Retired | Fidencio López Plaza | Bishop of Querétaro, México | Bishop Emeritus |
| 68.7 | Appointed | Jorge Carlos Patrón Wong | Archbishop of Puebla de los Ángeles, México |
| 76.3 | Retired | José Víctor Manuel Valentín Sánchez Espinosa | Archbishop of Puebla de los Ángeles, México | Archbishop Emeritus |
| 23 Sep | 86.8 | Died | Maurice Maxime Guy Le Bègue de Germiny † | Bishop Emeritus of Blois, France |
| 58.6 | Appointed | Silvio Pereira Castro | Auxiliary Bishop of São Miguel Paulista, Sao Paulo, Brazil | Auxiliary Bishop-Elect |
| 58.6 | Appointed | Silvio Pereira Castro | Titular Bishop of Mauriana | Auxiliary Bishop-Elect of São Miguel Paulista, Sao Paulo, Brazil |
| 24 Sep | 47.8 | Appointed | Paul Butnaru | Permanent Observer to Council of Europe |
| 63.8 | Died | Ricardo Ernesto Centellas Guzmán † | Archbishop of Sucre, Bolivia |
| 131.3 | Beatified | Bl. Fulton John Sheen † | Bishop Emeritus of Rochester, New York, USA |
| 25 Sep | 67.9 | Appointed | Giovanni Crippa, I.M.C. | Bishop of Palmeira dos Índios, Alagoas, Brazil |
| 26 Sep | 100.1 | Died | Pedro Antônio Marchetti Fedalto † | Archbishop Emeritus of Curitiba, Parana, Brazil |
| 78.2 | Died | Bruno Musarò † | Apostolic Nuncio |
| 27 Sep | 80.3 | Died | Robert Rivas, O.P. † | Archbishop Emeritus of Castries, Saint Lucia, Antilles |
| 28 Sep | 54.3 | Appointed | Nicolás Renán Aguilera Arroyo | Apostolic Administrator of Sucre, Bolivia | Bishop of Potosí, Bolivia |
| 63.3 | Died | Teodoro Gómez Rivera † | Bishop of Choluteca, Honduras |
| 29 Sep | 75.9 | Retired | Florencio Armando Colín Cruz | Bishop of Puerto Escondido, Oaxaca, México | Bishop Emeritus |
| 63.4 | Ordained Bishop | Anthony James Corcoran, S.J. | Titular Bishop of Aëtus | Apostolic Administrator of Kyrgyzstan |
| 76.8 | Retired | Mario Espinosa Contreras | Bishop of Mazatlán, Sinaloa, México | Bishop Emeritus |
| 63.3 | Appointed | Pierre Goudreault | Bishop of Trois-Rivières, Québec, Canada |
| 52.7 | Appointed | Héctor López Alvarado | Bishop of Puerto Escondido, Oaxaca, México |
| 73.7 | Installed | Eusebio Ramos Morales | Archbishop of San Juan de Puerto Rico |
| 63.3 | Appointed | Ramón Salazar Estrada | Bishop of Mazatlán, Sinaloa, México |
| 30 Sep | 47.5 | Elected | Santos Simón Cerrato Rivera | Administrator of Choluteca, Honduras |
| 1 Oct | 82.3 | Died | Antônio Roberto Cavuto, O.F.M. Cap. † | Bishop Emeritus of Itapipoca, Ceara, Brazil |
| 86.5 | Died | Mario Eusebio Mestril Vega † | Bishop Emeritus of Ciego de Ávila, Cuba |
| 46.1 | Ordained Bishop | Terentiy Vasyl Tsapchuk, O.S.B.M. | Titular Bishop of Horaea | Auxiliary Bishop of Buchach {Bučač} (Ukrainian), Ukraine |
| 2 Oct | 64.7 | Ordained Bishop | Thomas Animoottil | Titular Bishop of Troyna | Auxiliary Bishop of Kottayam (Syro-Malabar), India |
| 70.1 | Removed | Ricardo Orlando Seirutti García | Auxiliary Bishop of Córdoba, Argentina | Titular Bishop of Bela |
| 3 Oct | 77.1 | Retired | Bruno Forte | Archbishop of Chieti-Vasto, Italy | Archbishop Emeritus |
| 60.9 | Appointed | Mauro Maria Gambetti, O.F.M. Conv. | Cardinal, Archbishop of Chieti-Vasto, Italy |
| 52.5 | Ordained Bishop | Bonaventure Bosco Gubazire, M. Afr. | Bishop of Kabale, Uganda |
| 47.8 | Ordained Bishop | Serhii Kippa, O.F.M. Cap. | Titular Bishop of Marazanae | Auxiliary Bishop of Kyiv-Zhytomyr, Ukraine |
| 4 Oct | 74.8 | Died | Devprasad John Ganawa, S.V.D. † | Bishop of Udaipur, India |
| 55.3 | Installed | Christian Würtz | Bishop of Eichstätt, Germany |
| 5 Oct | 52.1 | Appointed | Grzegorz Piotr Bielaszka | Apostolic Nuncio to United Arab Emirates |
| 52.1 | Appointed | Grzegorz Piotr Bielaszka | Titular Archbishop of Tiburnia | Apostolic Nuncio to United Arab Emirates |
| 75.1 | Retired | Peter John Byrne | Auxiliary Bishop of New York, New York, USA | Auxiliary Bishop Emeritus |
| 7 Oct | 76.5 | Died | Frank Joseph Dewane † | Bishop Emeritus of Venice, Florida, USA |
| 67.8 | Resigned | Miguel Ângelo Freitas Ribeiro | Bishop of Oliveira, Minas Gerais, Brazil | Bishop Emeritus |
| 58.4 | Succeeded | Antônio Carlos Paiva | Bishop of Oliveira, Minas Gerais, Brazil |
| 65.8 | Appointed | Jan Romeo Pawłowski | Apostolic Nuncio to Ireland |
| 8 Oct | 92.6 | Ceased | Giovanni Battista Re | Cardinal-Bishop of Ostia | Cardinal, Dean Emeritus of the College of Cardinals |
| 92.6 | Retired | Giovanni Battista Re | Dean of the College of Cardinals | Cardinal, Dean Emeritus |
| 69.2 | Appointed | Luis Antonio Gokim Tagle | Cardinal-Bishop of Ostia | Cardinal, Pro-Prefect of the Dicastery for Evangelization |
| 69.2 | Confirmed | Luis Antonio Gokim Tagle | Dean of the College of Cardinals | Cardinal, Pro-Prefect of the Dicastery for Evangelization |
| 9 Oct | 84.9 | Died | António Vitalino Fernandes Dantas, O. Carm. † | Bishop Emeritus of Beja, Portugal |
| 58.8 | Appointed | Giorgio Ferretti | Bishop of Lucera-Troia, Italy | Archbishop of Foggia-Bovino, Italy |
| 75.2 | Retired | Giuseppe Giuliano | Bishop of Lucera-Troia, Italy | Bishop Emeritus |
| 10 Oct | 61.5 | Appointed | Aurelio García Macías | Secretary of the Dicastery for Divine Worship and the Discipline of the Sacraments |
| 56.2 | Appointed | Timothy Francis Menezes | Bishop of Brentwood, England, Great Britain |
| 57.4 | Ordained Bishop | Piotr Pytlowany | Bishop of Karaganda, Kazakhstan |
| 73.6 | Died | Marcellino Daiji Tani † | Bishop Emeritus of Saitama, Japan |
| 61.0 | Appointed | Vittorio Francesco Viola, O.F.M. | President of the Fabric of St. Peter |
| 61.0 | Appointed | Vittorio Francesco Viola, O.F.M. | Archpriest of the Basilica di San Pietro in Vaticano {Saint Peter Basilica} | President of the Fabric of St. Peter |
| 75.5 | Retired | Alan Stephen Williams, S.M. | Bishop of Brentwood, England, Great Britain | Bishop Emeritus |
| 62.9 | Ordained Bishop | Johannes Zehe | Titular Bishop of Aquae Sirenses | Auxiliary Bishop of Hamburg, Germany |
| 11 Oct | 56.0 | Ceased | Félicien Ntambue Kasembe, C.I.C.M. | Apostolic Administrator of Kabinda, Congo (Dem. Rep.) | Archbishop of Kananga, Congo (Dem. Rep.) |
| 52.6 | Ordained Bishop | Eustache Ntambwe Makoyo | Bishop of Kabinda, Congo (Dem. Rep.) |
| 12 Oct | 56.9 | Appointed | Carlos Tomás Morel Diplán | Bishop of Dominican Republic, Military | Archbishop of Santo Domingo, Dominican Republic |
| 56.9 | Succeeded | Carlos Tomás Morel Diplán | Archbishop of Santo Domingo, Dominican Republic |
| 75.0 | Retired | Francisco Ozoria Acosta | Archbishop of Santo Domingo, Dominican Republic | Archbishop Emeritus |
| 75.0 | Retired | Francisco Ozoria Acosta | Bishop of Dominican Republic, Military | Archbishop Emeritus of Santo Domingo, Dominican Republic |
| 62.3 | Appointed | Milad Tannous Yaghi, M.L. | Bishop of Nuestra Señora de los Mártires del Libano en México (Maronite) | Bishop-Elect |
| 13 Oct | 101.9 | Died | Albert Jean Charles Ghislain Houssiau † | Bishop Emeritus of Liège (Luik, Lüttich), Belgium |
| 67.4 | Appointed | Miguel Ángel Martínez Méndez | Coadjutor Bishop of Huehuetenango, Guatemala |
| 57.1 | Appointed | Francisco Cota de Oliveira | Bishop of Itabira-Fabriciano, Minas Gerais, Brazil |
| 14 Oct | 75.9 | Retired | Bernard Bober | Archbishop of Košice, Slovakia | Archbishop Emeritus |
| 52.7 | Appointed | Marek Forgáč | Archbishop of Košice, Slovakia |
| 58.2 | Appointed | Wellington de Queiroz Vieira | Archbishop of Cuiabá, Mato Grosso, Brazil |
| 15 Oct | 53.8 | Appointed | Paolo Andreolli, S.X. | Bishop of Ponta de Pedras, Para, Brazil |
| 40.2 | Ordained Bishop | Ignazio Ding Zuyao | Bishop of Haimen [Haimen], China |
| 54.2 | Appointed | Claudiu-Lucian Pop | Bishop of Cluj-Gherla (Claudiopoli-Armenopoli) (Romanian), Romania | Major Archbishop of Făgăraş şi Alba Iulia (Romanian), Romania |
| 16 Oct | 54.8 | Appointed | Andrés Martínez Esteban | Auxiliary Bishop of Madrid, Spain | Auxiliary Bishop-Elect |
| 54.8 | Appointed | Andrés Martínez Esteban | Titular Bishop of Temuniana | Auxiliary Bishop-Elect of Madrid, Spain |
| 61.3 | Appointed | Fernando Murga Gómez | Auxiliary Bishop of Madrid, Spain | Auxiliary Bishop-Elect |
| 61.3 | Appointed | Fernando Murga Gómez | Titular Bishop of Thasbalta | Auxiliary Bishop-Elect of Madrid, Spain |
| 17 Oct | 60.7 | Died | Sabri Anar † | Archbishop of Diarbekir (Amida) (Chaldean), Turkey |
| 53.4 | Appointed | Edouard Georges Daher, B.C. | Archbishop of Petra e Filadelfia (Melkite Greek), Jordan |
| 61.3 | Resigned | Joseph Gébara | Archbishop of Petra e Filadelfia (Melkite Greek), Jordan | Archbishop Emeritus |
| 48.0 | Ordained Bishop | Jean Miguina, O.F.M. Cap. | Bishop of Sarh, Chad |
| 53.2 | Installed | Liavoncij (Aliaksandr) Tumouski, M.S.U. | Apostolic Administrator of Belarus, Faithful of Byzantine Rite (Byzantine) |
| 19 Oct | 59.9 | Ordained Bishop | Stephen Wei-Jon Wang | Bishop of Arundel and Brighton, England, Great Britain |
| 21 Oct | 48.5 | Appointed | Leandro Machado Silvestre | Bishop of Guajará-Mirim, Rondonia, Brazil | Bishop-Elect |
| 22 Oct | 64.4 | Installed | Michael Arsenio Saporito | Bishop of Metuchen, New Jersey, USA |
| 59.5 | Ceased | Jonathan Samuel Toborowsky | Administrator of Metuchen, New Jersey, USA | Priest |
| 23 Oct | 84.4 | Died | Virginio Domingo Bressanelli, S.C.I. † | Bishop Emeritus of Neuquén, Argentina |
| 24 Oct | 60.8 | Succeeded | Joseph Francis Badji | Bishop of Kolda, Senegal |
| 75.2 | Retired | Jean-Pierre Bassène | Bishop of Kolda, Senegal | Bishop Emeritus |
| 62.6 | Installed | Ferenc Palánki | Archbishop of Kalocsa-Kecskemét, Hungary |
| 67.3 | Installed | Alfonso Raimo | Bishop of Terni-Narni-Amelia, Italy |
| 25 Oct | 75.4 | Retired | Fulgence Rabemahafaly | Archbishop of Fianarantsoa, Madagascar | Archbishop Emeritus |
| 53.7 | Succeeded | Jean Nicolas Rakotojaona | Archbishop of Fianarantsoa, Madagascar |
| 88.6 | Died | Paolo Romeo † | Cardinal, Archbishop Emeritus of Palermo, Italy |
| 27 Oct | 65.8 | Installed | Crispin Barrete Varquez | Bishop of Tagbilaran, Philippines |
| 29 Oct | 90.0 | Died | Manuel Gerardo Donoso Donoso, SS.CC. † | Archbishop Emeritus of La Serena, Chile |
| 58.9 | Installed | Giorgio Ferretti | Bishop of Lucera-Troia, Italy | Archbishop of Foggia-Bovino, Italy |
| 91.8 | Died | Paweł Socha, C.M. † | Auxiliary Bishop Emeritus of Zielona Góra-Gorzów, Poland |
| 30 Oct | 74.5 | Died | Richard Daniel Alarcón Urrutia † | Archbishop of Cuzco, Peru |
| 53.1 | Succeeded | Lizardo Estrada Herrera, O.S.A. | Archbishop of Cuzco, Peru |
| 31 Oct | 54.0 | Ordained Bishop | Jean Abou Charouche, S.M.S.P. | Titular Bishop of Myra dei Greco-Melkiti | Apostolic Exarch of Argentina (Melkite Greek) |
| 53.0 | Installed | Georgios Altouvas | Bishop of Syros (e Milos), Greece |
| 48.7 | Appointed | Martial Bernard | Bishop of Soissons (-Laon-Saint-Quentin), France | Bishop-Elect |
| 80.0 | Retired | Aldo Cavalli | Apostolic Visitor (Visitator) | Apostolic Visitor (Visitator) Emeritus |
| 71.7 | Appointed | Francesco Cavina | Apostolic Visitor (Visitator) |
| 63.4 | Installed | Michele Di Tolve | Bishop of Chioggia, Italy |
| 82.3 | Ceased | Sevastianos Rossolatos | Apostolic Administrator of Syros (e Milos), Greece | Archbishop Emeritus of Athēnai {Athens}, Greece |
| 82.3 | Ceased | Sevastianos Rossolatos | Apostolic Administrator of Santorini {Thira}, Greece | Archbishop Emeritus of Athēnai {Athens}, Greece |
| 82.3 | Ceased | Sevastianos Rossolatos | Apostolic Administrator of Crete {Candia}, Greece | Archbishop Emeritus of Athēnai {Athens}, Greece |
| 59.0 | Installed | Louis-Jean Sander | Bishop of Fort-Liberté, Haïti |