| Date | Age | Bishop | Title |
| unknown | 66.9 | Paolo Marmarian † | Bishop of Trabzon (Armenian), Turkey |
| 7 Jan | 69.6 | José Ignacio Árciga Ruiz de Chávez † | Archbishop of Michoacán, México |
| 9 Jan | 72.5 | Generoso Mattei † | Bishop of Nepi e Sutri, Italy |
| 16 Jan | 75.8 | Auguste Marchal † | Auxiliary Bishop Emeritus of Bourges, France |
| 17 Jan | 80.0 | Luigi Trombetta † | Cardinal, Secretary of the Congregation of Bishops and Regulars |
| 30 Jan | 59.3 | António Pedro da Costa † | Bishop of Damão, India |
| 1 Feb | 62.4 | Domenico Maria Jacobini † | Cardinal, Vicar General of Roma {Rome}, Italy |
| 3 Feb | 84.1 | Franciscus Antonius Hubertus Boermans † | Bishop of Roermond, Netherlands |
| 5 Feb | 65.4 | Mariano Elvezio Pagliari † | Archbishop of Spoleto, Italy |
| 6 Feb | 65.2 | Uladislao Castellano † | Archbishop of Buenos Aires, Argentina |
| 15 Feb | 71.8 | Raphael de Martinis, C.M. † | Titular Archbishop of Laodicea in Phrygia |
| 2 Mar | 75.8 | Pasquale Maria Jaderosa † | Coadjutor Bishop Emeritus of Sant’Agata de’ Goti, Italy |
| 2 Mar | 72.6 | Łukasz Solecki † | Bishop of Przemyśl, Poland |
| 4 Mar | 74.5 | John Hennessy † | Archbishop of Dubuque, Iowa, USA |
| 5 Mar | 66.3 | Antonio Maria Saeli, C.SS.R. † | Bishop of Mazara del Vallo, Italy |
| 7 Mar | 70.9 | Jorge Montes Solar † | Auxiliary Bishop of Santiago de Chile |
| 12 Mar | 90.9 | Luigi di Canossa † | Cardinal, Bishop of Verona, Italy |
| 16 Mar | 62.1 | Augusto Guidi † | President Emeritus of Pontifical Ecclesiastical Academy, Roman Curia |
| 22 Mar | 79.6 | Franz Adolf Namszanowski † | Vicar Apostolic Emeritus of Germany, Military |
| 26 Mar | 67.1 | Camillo Mazzella, S.J. † | Cardinal, Prefect of the Congregation of Rites |
| 28 Mar | 51.4 | Caietanus Maria de Angelis, O.F.M. Conv. † | Archbishop of Athenai {Athens}, Greece |
| 31 Mar | 75.9 | Miguel León y Garrido † | Bishop of Cuenca, Ecuador |
| 2 Apr | 84.6 | Hermann Gleich † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 11 Apr | 65.8 | Pierre-Emmanuel-Dieudonné Bouvier † | Bishop of Tarentaise, France |
| 15 Apr | 72.7 | Ignazio Łobos † | Auxiliary Bishop of Przemyśl, Poland |
| 22 Apr | 82.1 | Tobias Mullen † | Bishop Emeritus of Erie, Pennsylvania, USA |
| 25 Apr | 73.1 | Manoel dos Santos Pereira † | Bishop of Olinda, Brazil |
| 29 Apr | 55.6 | Angus MacDonald † | Archbishop of Saint Andrews and Edinburgh, Scotland, Great Britain |
| 2 May | 81.3 | Seweryn Tytus Morawski-Dabrowa † | Archbishop of Lviv, Ukraine |
| 4 May | 74.0 | Julian Kuiłovskyi † | Archbishop of Lviv (Ukrainian), Ukraine |
| 5 May | 75.0 | Johann Evangelist Haller † | Cardinal, Archbishop of Salzburg, Austria |
| 10 May | 80.7 | Teofilo Massucci, O.F.M. † | Bishop Emeritus of Syros (e Milos), Greece |
| 23 May | 74.1 | John Vertue (Virtue) † | Bishop of Portsmouth, England, Great Britain |
| 28 May | 76.4 | Bernardo Antonio De Riso, O.S.B. † | Bishop of Catanzaro, Italy |
| 12 Jun | 59.5 | Joseph (James) Rademacher † | Bishop of Fort Wayne, Indiana, USA |
| 13 Jun | 38.3 | Joachim-Pierre Buléon, C.S.Sp. † | Vicar Apostolic of Senegambia, Senegal |
| 13 Jun | 80.0 | William Lanigan † | Bishop of Goulburn, Australia |
| 2 Jul | 45.7 | Laurent Guillon, M.E.P. † | Vicar Apostolic of Southern Manchuria {Manciuria Meridionale}, China |
| 4 Jul | 65.1 | Michael Naughten † | Bishop of Roseau, Dominica, Antilles |
| 7 Jul | 57.7 | St. Antonio Fantosati, O.F.M. † | Vicar Apostolic of Southern Hunan {Hu-Nan Meridionale}, China |
| 9 Jul | 60.8 | St. Francesco Antonio Domenico Fogolla, O.F.M. † | Coadjutor Vicar Apostolic of Northern Shansi {Scian-Si Settentrionale}, China |
| 9 Jul | 66.6 | St. Grégoire Grassi, O.F.M. † | Vicar Apostolic of Northern Shansi {Scian-Si Settentrionale}, China |
| 23 Jul | 54.6 | Charles-Félix Pelvat, M.S.F.S. † | Bishop of Nagpur, India |
| 24 Jul | 49.8 | Jean Louis Mando † | Bishop of Angoulême, France |
| 25 Jul | 59.9 | Ferdinand Hubertus Hamer, C.I.C.M. † | Vicar Apostolic of Southwestern Mongolia {Mongolia Occiduo-Meridionale}, China |
| 25 Jul | 58.9 | Giulio Matteoli † | Bishop of Livorno, Italy |
| 5 Aug | 70.3 | James Augustine Healy † | Bishop of Portland, Maine, USA |
| 11 Aug | 78.0 | Paul-François-Marie de Forges † | Auxiliary Bishop Emeritus of Rennes (-Dol-Saint-Malo), France |
| 11 Aug | 61.3 | Philippus Steiner † | Bishop of Székesfehérvár (Albareale), Hungary |
| 20 Aug | 63.8 | Carlo Maria Borgognini † | Archbishop of Modena (e Nonantola), Italy |
| 20 Aug | 55.1 | Avedis Marcus Turkian † | Bishop of Alep (Armenian), Syria |
| 9 Sep | 81.0 | François Xavier Gouthe-Soulard † | Archbishop of Aix (-Arles-Embrun), France |
| 9 Sep | 46.7 | Theophilus Mayer, M.H.M. † | Auxiliary Bishop of Madras, India |
| 13 Sep | 55.1 | José Ramón Quesada y Gascón † | Bishop of Segovia, Spain |
| 18 Sep | 73.6 | Paolo Giuseppe Maria Serci Serra † | Archbishop of Cagliari, Italy |
| 26 Sep | 80.8 | François-Narcisse Baptifolier † | Bishop of Mende, France |
| 29 Sep | 66.6 | Giacinto Nicolai † | Bishop Emeritus of Ripatransone, Italy |
| 11 Oct | 72.3 | Kornél Hidasy † | Bishop of Szombathely, Hungary |
| 12 Oct | 62.6 | Augustin Chausse, M.E.P. † | Prefect of Kouangtong, China |
| 14 Oct | 58.7 | Luciano Bucci, O.F.M. † | Bishop of Aquino, Sora, e Pontecorvo, Italy |
| 14 Oct | 69.9 | Henri-Joseph Bulté, S.J. † | Vicar Apostolic of Southeastern Chi-Li {Ce-Li Meridio-Orientale}, China |
| 23 Oct | 79.0 | Josyf Sembratowicz (Sembratovyc) † | Archbishop Emeritus of Lviv (Ukrainian), Ukraine |
| 27 Oct | 65.5 | Perfecto Amézquita y Gutiérrez, C.M. † | Bishop of Tlaxcala, México |
| 18 Nov | 57.4 | Domenico Cocchia, O.F.M. Cap. † | Bishop of Ascoli Satriano e Cerignola, Italy |
| 19 Nov | 81.7 | Joseph-Jean-Louis Robert † | Bishop of Marseille, France |
| 24 Nov | 70.9 | Thomas McGivern † | Bishop of Dromore, Ireland |
| 27 Dec | 81.0 | Giovanni Kupelian † | Titular Archbishop of Attalea in Pamphylia |
| 29 Dec | 86.8 | Rudesindo Salvado, O.S.B. † | Abbot of New Norcia, Australia |
| 31 Dec | 69.3 | Jacinto López y Romo † | Archbishop of Guadalajara, Jalisco, México |
| 31 Dec | 66.7 | Macario Sorini † | Bishop Emeritus of Gubbio, Italy |