| Date | Age | Bishop | Title |
| unknown | 77.3 | Georges Augustin Bar-Chino (Barshino, Barscinu) † | Bishop of Salmas {Shahpour} (Chaldean), Iran |
| unknown | 49.6 | Gustavo Leonardo de Battice † | Coadjutor Bishop Emeritus of Gent {Ghent, Gand}, Belgium |
| unknown | | Etienne-Jean Kaynaia † | Bishop of Zaku (Chaldean), Iraq |
| 1 Jan | 74.3 | Pedro Payo y Piñeiro, O.P. † | Archbishop of Manila, Philippines |
| 13 Jan | 63.0 | Flaviano Simoneschi † | Bishop Emeritus of Terracina, Priverno e Sezze, Italy |
| 17 Jan | 84.2 | Etienne Marilley † | Bishop Emeritus of Lausanne et Genève, Switzerland |
| 22 Jan | 43.7 | Mathurin Picarda, C.S.Sp. † | Vicar Apostolic of Senegambia, Senegal |
| 27 Jan | 63.5 | Henri-Abel Mortier † | Bishop of Digne, France |
| 27 Jan | 73.5 | João Pereira Bothelho de Amaral y Pimentel † | Bishop of Angra, Portugal |
| 4 Feb | 70.6 | John MacDonald † | Bishop of Aberdeen, Scotland, Great Britain |
| 9 Feb | 76.5 | Jean-Baptiste-François Pitra, O.S.B. † | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 12 Feb | 85.7 | Vincenzo Bisceglia † | Bishop of Termoli, Italy |
| 25 Feb | 80.8 | Carlo Sacconi † | Cardinal, Prefect of the Congregation of Ceremonies |
| 8 Mar | 74.2 | Joachim-Hyacinthe Gonin, O.P. † | Archbishop of Port of Spain, Trinidad and Tobago, Antilles |
| 13 Mar | 66.5 | Joseph Franz von Weckert † | Bishop of Passau, Germany |
| 19 Mar | 65.5 | Johannes Henricus Schaap, C.SS.R. † | Vicar Apostolic of Dutch Guyana-Suriname, Suriname, Antilles |
| 20 Mar | 38.5 | Elia Hranilović † | Bishop of Križevci (Kreutz) (Križevci), Croatia |
| 21 Mar | 82.9 | William Bernard Ullathorne, O.S.B. † | Bishop Emeritus of Birmingham, England, Great Britain |
| 31 Mar | 58.3 | Pierre-Noël-Joseph Foucard, M.E.P. † | Prefect of Kuamsi, China |
| 5 Apr | 74.8 | Celestino Matteo Fissore † | Archbishop of Vercelli, Italy |
| 8 Apr | 58.3 | José Telésphor Paúl y Vargas, S.J. † | Archbishop of Santafé en Nueva Granada, Colombia |
| 13 Apr | 76.2 | Johannes Bernard Brinkmann † | Bishop of Münster, Germany |
| 25 Apr | 72.0 | Antonio La Scala † | Bishop of San Severo, Italy |
| 27 Apr | 64.6 | Domenico Mignanti † | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 1 May | 63.2 | Andrew Higgins † | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| 12 May | 67.2 | Pietro Garga † | Auxiliary Bishop of Novara, Italy |
| 15 May | 74.8 | János Pauer † | Bishop of Székesfehérvár (Albareale), Hungary |
| 17 May | 40.4 | Louis-Hippolyte-Aristide Raguit, M.E.P. † | Vicar Apostolic of Manchuria {Manciuria}, China |
| 22 May | 68.5 | Giuseppe Maria Cotellessa † | Bishop of Lucera, Italy |
| 22 May | | Peter Power † | Bishop of Waterford and Lismore, Ireland |
| 30 May | 72.3 | Gaetano Lironi † | Bishop of Assisi, Italy |
| 19 Jun | 54.3 | Vincenzo Bracco † | Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 28 Jun | 73.9 | Jakob Ignaz Maximilian Stepišnik (Stepischnegg) † | Bishop of Lavant, Slovenia |
| 2 Jul | 41.4 | Hendrik-Karel Lambrecht † | Bishop of Gent {Ghent, Gand}, Belgium |
| 10 Jul | 76.9 | Joseph Projectus Machebeuf (Macheboeuf) † | Bishop of Denver, Colorado, USA |
| 3 Aug | 89.5 | Louis-Eugène Regnault † | Bishop of Chartres, France |
| 6 Aug | 80.2 | Guglielmo Massaia, O.F.M. Cap. † | Cardinal, Vicar Apostolic Emeritus of Galla, Ethiopia |
| 9 Aug | 77.0 | Sándor Bonnaz † | Bishop of Csanád, Hungary |
| 10 Aug | 57.8 | Alfred-François Fleury-Hottot † | Bishop of Bayonne, France |
| 14 Aug | 59.6 | Giuseppe Ingami † | Bishop of Orvieto, Italy |
| 16 Aug | 76.8 | Aimé-Victor-François Guilbert † | Cardinal, Archbishop of Bordeaux, France |
| 26 Aug | 68.5 | Aleksander Kazimierz Gintowt-Dziewaltowski † | Archbishop of Mohilev, Belarus |
| 1 Sep | 77.1 | Francis Kelly † | Bishop of Derry, Ireland |
| 7 Sep | 68.8 | Elia Bianchi † | Titular Archbishop of Nicosia |
| 16 Sep | 80.7 | James Ryan † | Coadjutor Bishop of Killaloe, Ireland |
| 23 Sep | 60.0 | Placido Maria Schiaffino, O.S.B. † | Cardinal, Prefect of the Congregation of the Index |
| 26 Sep | 82.8 | Marie-Jean-François Allard, O.M.I. † | Vicar Apostolic Emeritus of Natal, South Africa |
| 26 Sep | 74.8 | Concetto Focaccetti † | Bishop Emeritus of Acquapendente, Italy |
| 26 Sep | 57.6 | Colin Grant † | Bishop of Aberdeen, Scotland, Great Britain |
| 28 Sep | 64.1 | George Porter, S.J. † | Archbishop of Bombay, India |
| 29 Sep | 71.2 | Agustín de Jesús Torres y Hernandez, C.M. † | Bishop of Tulancingo, Hidalgo, México |
| 9 Oct | 73.7 | Antonius von Steichele † | Archbishop of München und Freising {Munich}, Germany |
| 14 Nov | 83.1 | Joseph Freusberg † | Auxiliary Bishop of Paderborn, Germany |
| 7 Dec | 68.8 | John Tuigg † | Bishop of Pittsburgh, Pennsylvania, USA |
| 13 Dec | 82.0 | Filippo de Simone † | Bishop of Nicotera e Tropea, Italy |
| 14 Dec | 72.3 | Cölestin Joseph Ganglbauer, O.S.B. † | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 16 Dec | 64.9 | Luigi Martucci † | Bishop of Penne e Atri, Italy |