| Date | Age | Bishop | Title |
| unknown | | Giovanni Calloch, C.S.Sp. † | Prefect of Oubangui Chari, Central African Republic |
| unknown | | Giuseppe Rose, O.M.I. † | Prefect of Pilcomayo, Paraguay |
| 1 Jan | 77.9 | Denis Joseph O’Connell † | Bishop Emeritus of Richmond, Virginia, USA |
| 2 Jan | 56.1 | Josef Bombera † | Titular Bishop of Hieropolis |
| 4 Jan | 76.5 | Johannes Baptist Rößler (Roessler) † | Bishop of Sankt Pölten, Austria |
| 5 Jan | 65.1 | Nicasio Arellano, O.P. † | Vicar Apostolic Emeritus of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 13 Jan | 48.8 | Francisco Antonio Granadillo † | Bishop of Valencia en Venezuela |
| 15 Jan | | Gregorio Giorgio Sciahin † | Archbishop Emeritus of Homs (-Hama-Nabk) (Syrian), Syria |
| 16 Jan | 67.9 | Julián de Diego y García Alcolea † | Archbishop of Santiago de Compostela, Spain |
| 24 Jan | 68.1 | Luis Javier Muñoz y Capurón, S.J. † | Archbishop of Guatemala |
| 26 Jan | 58.2 | Agostinho Francisco Benassi † | Bishop of Niterói (Nictheroy), Brazil |
| 27 Jan | 55.8 | Bl. Jerzy Bolesław Matulewicz-Matulaitis, M.I.C. † | Bishop Emeritus of Vilnius, Lithuania |
| 29 Jan | 62.6 | António Alves Ferreira † | Bishop of Viseu, Portugal |
| 29 Jan | 78.6 | Andrea Caron † | Archbishop Emeritus of Genova, Italy |
| 29 Jan | 68.4 | Charles O’Sullivan † | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| 11 Feb | 73.0 | Stanisław Kazimierz Zdzitowiecki † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 16 Feb | 69.6 | Vittorio Amedeo Ranuzzi de’ Bianchi † | Cardinal, Bishop Emeritus of Recanati e Loreto, Italy |
| 22 Feb | 74.0 | Heinrich Joeppen † | Bishop Emeritus of Germany, Military |
| 26 Feb | 83.1 | John Rooney † | Vicar Apostolic Emeritus of Cape of Good Hope, Western District {Capo di Buona Speranza, Distretto Occidentale}, South Africa |
| 18 Mar | 63.4 | William Thomas B. Russell † | Bishop of Charleston, South Carolina, USA |
| 18 Mar | 84.4 | Leopold Schuster † | Bishop of Seckau, Austria |
| 22 Mar | 73.8 | John Francis Regis Canevin † | Bishop Emeritus of Pittsburgh, Pennsylvania, USA |
| 22 Mar | 87.6 | Robert John Seton † | Titular Archbishop of Heliopolis in Phoenicia |
| 22 Mar | 79.7 | Amilcare Tonietti † | Bishop Emeritus of Montalcino, Italy |
| 28 Mar | 74.0 | Joseph-Médard Émard † | Archbishop of Ottawa, Ontario, Canada |
| 2 Apr | 68.5 | Ottokár Prohászka † | Bishop of Székesfehérvár (Albareale), Hungary |
| 6 Apr | 53.2 | James Downey, C.M. † | Coadjutor Bishop of Ossory, Ireland |
| 14 Apr | 85.1 | Joseph Hoare † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 9 May | 66.8 | Imre Bjelik † | Bishop Emeritus of Austria, Military |
| 12 May | 59.0 | Auguste Gauthier, M.E.P. † | Vicar Apostolic of Pakhoi [Beihai], China |
| 17 May | 71.7 | Émile-Jean Seghers † | Bishop of Gent {Ghent, Gand}, Belgium |
| 20 May | 71.9 | John Joseph O’Connor † | Bishop of Newark, New Jersey, USA |
| 6 Jun | 84.7 | Alfred-Jules Mélisson † | Bishop Emeritus of Blois, France |
| 9 Jun | 66.2 | Daniel Mary Gorman † | Bishop of Boise City, Idaho, USA |
| 16 Jun | 61.5 | José Juan de Jésus Herrera y Piña † | Archbishop of Monterrey, Nuevo León, México |
| 19 Jun | 64.4 | Ludovico Antomelli, O.F.M. † | Bishop of Lodi, Italy |
| 19 Jun | 75.2 | Angelo Portelli, O.P. † | Auxiliary Bishop of Malta |
| 23 Jun | 59.4 | Charles-François Lasne, C.M. † | Coadjutor Vicar Apostolic of Fort-Dauphin, Madagascar |
| 26 Jun | 77.2 | Michele Zezza di Zapponeta † | Archbishop Emeritus of Napoli {Naples}, Italy |
| 28 Jun | 73.8 | Louis Humbrecht † | Archbishop of Besançon, France |
| 2 Jul | 61.8 | Joseph Gaudentius Anderson † | Auxiliary Bishop of Boston, Massachusetts, USA |
| 7 Jul | 79.5 | Laurent Marie Étienne Monnier † | Bishop of Troyes, France |
| 10 Jul | 62.8 | Juan Plaza y García † | Bishop of Santander, Spain |
| 11 Jul | 81.7 | Ottavio Cagiano de Azevedo † | Cardinal, Chancellor of the Apostolic Chancery |
| 15 Jul | 68.7 | Johann Raffl † | Bishop of Brixen {Bressanone}, Italy |
| 17 Jul | 85.6 | Martin-Hubert Rutten † | Bishop of Liège, Belgium |
| 23 Jul | 56.1 | João Borges Quintão, C.M. † | Former Bishop-Elect of Santa Caterina, Brazil |
| 25 Jul | 75.1 | János Csernoch † | Cardinal, Archbishop of Esztergom, Hungary |
| 1 Aug | 81.6 | Giuseppe Schirò † | Titular Archbishop of Neocaesarea in Ponto |
| 1 Aug | 77.1 | Antonio Ramón Silva † | Archbishop of Mérida, Venezuela |
| 4 Aug | 55.8 | Settimio Quadraroli † | Bishop of Teramo, Italy |
| 8 Aug | 48.9 | Adalbert Schmücker, O.F.M. † | Vicar Apostolic of Tsinanfu, China |
| 19 Aug | 75.4 | Primo Bianchi † | Archbishop Emeritus of Durrës (Durazzo), Albania |
| 23 Aug | 51.3 | José Lopes Leite de Faria † | Bishop of Bragança e Miranda, Portugal |
| 24 Aug | 84.3 | François-Xavier Schoepfer † | Bishop of Tarbes et Lourdes, France |
| 25 Aug | 68.6 | Enrique Reig y Casanova † | Cardinal, Archbishop of Toledo, Spain |
| 7 Sep | 73.8 | Augustin Marre, O.C.S.O. † | Auxiliary Bishop Emeritus of Reims, France |
| 14 Sep | 69.1 | Giuseppe Gandolfi † | Bishop of Jesi, Italy |
| 21 Sep | 70.1 | Pio Gaetano Secondo Stella † | Auxiliary Bishop of Montevideo, Uruguay |
| 7 Oct | 83.4 | Bernardino Nozaleda y Villa, O.P. † | Archbishop Emeritus of Valencia, Spain |
| 8 Oct | 65.0 | Peter James Muldoon † | Bishop of Rockford, Illinois, USA |
| 11 Oct | 76.4 | Franz Anton von Henle † | Bishop of Regensburg, Germany |
| 14 Oct | 47.0 | Philippe Zhao Huai-yi (Tchao) † | Vicar Apostolic of Süanhwafu, China |
| 20 Oct | 78.2 | Jakob Klunder † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| 22 Oct | 67.9 | Apollonio Maggio † | Bishop of Ascoli Piceno, Italy |
| 22 Oct | 70.9 | Patrick Joseph O’Donnell † | Cardinal, Archbishop of Armagh, Ireland |
| 29 Oct | 74.0 | Jeremiah James Harty † | Bishop of Omaha, Nebraska, USA |
| 30 Oct | 63.7 | Joseph Freri † | Titular Bishop of Constantia in Arabia |
| 5 Nov | 59.7 | Louis Petit, A.A. † | Archbishop Emeritus of Athenai {Athens}, Greece |
| 8 Nov | 57.7 | Roberto Julio Colombo, O.F.M. Cap. † | Prelate of São José do Grajaú, Brazil |
| 9 Nov | 69.2 | William Miller, O.M.I. † | Vicar Apostolic Emeritus of Transvaal, South Africa |
| 9 Nov | 71.1 | Gennaro Trama † | Bishop of Lecce, Italy |
| 12 Nov | 69.3 | Alessandro Lualdi † | Cardinal, Archbishop of Palermo, Italy |
| 14 Nov | 77.1 | Damaso Pio de Bono † | Bishop Emeritus of Caltagirone, Italy |
| 23 Nov | 67.5 | Patrick Richard Heffron † | Bishop of Winona, Minnesota, USA |
| 26 Nov | 60.2 | Giovanni Vincenzo Bonzano † | Cardinal, Apostolic Delegate Emeritus to United States of America |
| 29 Nov | 39.7 | Sebastian Großrubatscher (Grossrubatscher), O.F.M. † | Prefect of Lingling [Yungchow], China |
| 5 Dec | 46.5 | Silverio Velasco Pérez † | Apostolic Administrator of Ciudad Rodrigo, Spain |
| 11 Dec | 82.2 | Donato Velluti Zati di San Clemente † | Bishop Emeritus of Pescia, Italy |
| 24 Dec | 50.8 | Béchara Richard Chémali † | Archbishop of Damas (Maronite), Syria |
| 24 Dec | 82.9 | Thomas Fennelly † | Archbishop Emeritus of Cashel (-Emly), Ireland |
| 29 Dec | 74.3 | Thomas-Paul-Henri Lemonnier † | Bishop of Bayeux (-Lisieux), France |
| 31 Dec | 51.9 | Antonio Álvaro y Ballano † | Bishop of Zamora, Spain |