| Date | Age | Bishop | Title |
| unknown | 82.6 | Angelus Boccamazzi † | Titular Bishop of Cydonia (Agia, Canea) |
| unknown | 66.1 | Francesco Paolo Cardona Albini † | Titular Bishop of Nemesi |
| unknown | 72.2 | Pedro José Sánchez Carrascosa y Carrión, C.O. † | Bishop Emeritus of Avila, Spain |
| unknown | 81.6 | Ludovicus Felix Zdanowicz † | Titular Bishop of Dionysias |
| 6 Jan | 62.6 | Jean-Louis-Antoine-Alfred Gilly † | Bishop of Nîmes (-Uzès e Alès), France |
| 8 Jan | 61.9 | Giuseppe Maria Graniello, B. † | Cardinal, Cardinal-Priest of Santi Quirico e Giulitta |
| 20 Jan | 68.8 | Guillaume-René Meignan † | Cardinal, Archbishop of Tours, France |
| 20 Jan | 62.9 | Carlo Quaroni † | Titular Bishop of Cyme |
| 22 Jan | 72.2 | Giovanni Battista Laparelli Pitti † | Bishop of Cortona, Italy |
| 23 Jan | 47.8 | John Edmund Luck, O.S.B. † | Bishop of Auckland, New Zealand |
| 24 Jan | 66.3 | Nándor Dulánszky † | Bishop of Pécs, Hungary |
| 15 Feb | 76.4 | Basilio Leto † | Bishop Emeritus of Biella, Italy |
| 18 Feb | 62.1 | Antonio Ochoa y Arenas † | Bishop of Sigüenza, Spain |
| 1 Mar | 86.3 | Clemente Fares † | Bishop of Pesaro, Italy |
| 4 Mar | 89.5 | Peter Richard Kenrick † | Archbishop Emeritus of Saint Louis, Missouri, USA |
| 6 Mar | 47.2 | Pierre-Marie Gentet † | Auxiliary Bishop of Port-au-Prince, Haïti |
| 6 Mar | 82.7 | Benedetto Lavecchia Guarnieri, O.F.M. † | Archbishop of Siracusa, Italy |
| 7 Mar | 75.7 | Giovanni Maria Berengo † | Archbishop of Udine, Italy |
| 7 Mar | 41.9 | Henri-Caprais Vasselon, M.E.P. † | Bishop of Osaka, Japan |
| 13 Mar | 67.3 | Egidio Mauri, O.P. † | Cardinal, Archbishop of Ferrara, Italy |
| 23 Mar | 73.5 | Camillo Ruggeri † | Bishop of Fano, Italy |
| 8 Apr | 62.9 | Edouard Gasnier, M.E.P. † | Bishop of Malacca, Singapore |
| 8 Apr | 65.3 | Giovanni Ponzi † | Titular Archbishop of Sardes |
| 10 Apr | 70.3 | Stephen Michael Vincent Ryan, C.M. † | Bishop of Buffalo, New York, USA |
| 22 Apr | 51.6 | Antonio Estalella y Sivilla † | Bishop of Teruel (-Albarracín), Spain |
| 22 Apr | 53.3 | Julian Pełesz † | Bishop of Przemyśl, Sambor, et Sanok (Ruthenian), Poland |
| 25 Apr | 78.2 | Vincenzo Brancia † | Bishop of Ugento, Italy |
| 26 Apr | 81.6 | Giovanni Battista Guttadauro di Reburdone † | Bishop of Caltanissetta, Italy |
| 27 Apr | 83.9 | Giovanni Antonio Benini (Bedini) † | Bishop of Pescia, Italy |
| 7 May | 60.0 | Luigi Galimberti † | Cardinal, Archivist of the Vatican Secret Archives |
| 12 May | 91.2 | Giovanni Cirino † | Auxiliary Bishop of Palermo, Italy |
| 16 May | 67.1 | Ercole Vincento Boffi † | Bishop of Bagnoregio (Bagnorea), Italy |
| 27 May | 81.7 | Pierre-Alfred Grimardias † | Bishop of Cahors, France |
| 31 May | 73.3 | Serafino Corrias † | Bishop of Bisarchio o Bisarcio (Ozieri), Italy |
| 1 Jun | 64.8 | Michał Nowodworski † | Bishop of Płock, Poland |
| 21 Jun | 44.9 | Esteban Sánchez de las Heras, O.P. † | Vicar Apostolic of Amoy, China |
| 23 Jun | | Niccola d’Orgemont, O.S.B. † | Abbot of Montecassino, Italy |
| 8 Jul | 62.9 | Francis Vincent Pesci, O.F.M. Cap. † | Bishop of Allahabad, India |
| 10 Jul | 68.6 | Joseph-Christian-Ernest Bourret, C.O. † | Cardinal, Bishop of Rodez (-Vabres), France |
| 14 Jul | 35.5 | Antonin Guillermain, M. Afr. † | Vicar Apostolic of Northern Victoria Nyanza {Victoria-Nyanza Settentrionale}, Uganda |
| 14 Jul | 69.4 | Raffaele Monaco La Valletta † | Cardinal, Prefect of the Congregation of Ceremonies |
| 15 Jul | 60.4 | Antônio Maria Corrêa de Sá e Benevides † | Bishop of Mariana, Brazil |
| Aug | 51.7 | Emilio Alfonso Todisco Grande † | Bishop of Nusco, Italy |
| 1 Aug | 55.0 | Augustus Berlucca † | Titular Bishop of Helenopolis in Bithynia |
| 4 Aug | 52.3 | Théodore-Herman Rutjes, C.I.C.M. † | Vicar Apostolic of Eastern Mongolia {Mongolia Orientale}, China |
| 10 Aug | 54.5 | Jeremiah O’Sullivan † | Bishop of Mobile, Alabama, USA |
| 12 Aug | 57.9 | Ludovic-Henri-Marie-Ixile Julien-Laferrière † | Bishop of Constantine (-Hippone), Algeria |
| 13 Aug | 86.6 | Bonifacio Antonio Toscano † | Bishop Emeritus of Nueva Pamplona, Colombia |
| 15 Aug | 82.8 | Patrick Duggan † | Bishop of Clonfert, Ireland |
| 14 Sep | 74.5 | Francisco Melitón Vargas y Gutiérrez † | Bishop of Tlaxcala, México |
| 16 Sep | 86.6 | Francesco Gallo † | Bishop of Avellino, Italy |
| 19 Sep | 62.7 | Martin Marty, O.S.B. † | Bishop of Saint Cloud, Minnesota, USA |
| 1 Oct | 40.7 | Pietro Strobino † | Vicar Apostolic of Cape of Good Hope, Eastern District {Capo de Buona Speranza, Distretto Orientale}, South Africa |
| 9 Oct | 80.7 | Gaetano de Ruggiero † | Cardinal, Cardinal-Deacon of Santa Maria in Cosmedin |
| 20 Oct | 71.3 | Manuel María León González y Sánchez † | Bishop of Jaén, Spain |
| 22 Oct | 70.5 | Johannes Christian Roos † | Archbishop of Freiburg im Breisgau, Germany |
| 30 Oct | 73.7 | Gustav Adolf von Hohenlohe-Schillingsfürst † | Cardinal, Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} |
| 8 Nov | 66.9 | Eugenio Biffi, P.I.M.E. † | Bishop of Cartagena, Colombia |
| 24 Nov | 63.9 | William Fitzgerald † | Bishop of Ross, Ireland |
| 16 Dec | 67.4 | Jean-Pierre Boyer † | Cardinal, Archbishop of Bourges, France |
| 18 Dec | 59.0 | Alphonsus M. H. Joosten, O.P. † | Vicar Apostolic of Curaçao, Netherlands Antilles, Antilles |
| 19 Dec | 89.9 | James Lynch, C.M. † | Bishop of Kildare and Leighlin, Ireland |
| 21 Dec | 81.4 | Vincenzo Leone Sallua, O.P. † | Titular Archbishop of Chalcedon |
| 30 Dec | 69.8 | Édouard-Charles Fabre † | Archbishop of Montréal, Québec, Canada |