| Date | Age | Bishop | Title |
| unknown | 61.7 | Gaspare Barletta † | Bishop of Venosa, Italy |
| unknown | 62.7 | Giuseppe Cacace † | Bishop of Monopoli, Italy |
| unknown | | Basile Jelghaf † | Archbishop of Beirut {Bairut} (Melkite Greek), Lebanon |
| unknown | 52.0 | Josyf Lepkovskyj † | Bishop of Smoleńsk (Ukrainian), Russian Federation |
| unknown | 74.6 | Giovan Filippo Leonardo Vitetta † | Bishop of Castellaneta, Italy |
| Jan | 80.6 | Gaspar Negri † | Bishop of Poreč (Parenzo), Croatia |
| 11 Jan | 69.6 | Jan Dominik Łopaciński † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 24 Jan | | Daniel O’Kearney † | Bishop of Limerick, Ireland |
| 1 Feb | 79.6 | Filip Felicjan Wołodkowicz (Volodkovyc), O.S.B.M. † | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 4 Feb | 81.0 | Adam Wojna Orański † | Auxiliary Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 8 Feb | 63.0 | Adam Dwertitsch (Dvertisch) † | Auxiliary Bishop of Wien {Vienna}, Austria |
| 8 Feb | 53.1 | Ermenold Piesport, O.S.B. † | Auxiliary Bishop of Fulda, Germany |
| 9 Feb | 50.5 | Pedro Ángel de Espiñeira, O.F.M. Obs. † | Bishop of Concepción, Chile |
| 16 Feb | 63.3 | Giuseppe de Rossi † | Archbishop of Brindisi, Italy |
| 1 Mar | 73.5 | Anton Ludovico Antinori, C.O. † | Archbishop Emeritus of Acerenza e Matera, Italy |
| 6 Mar | 71.2 | Francisco Pallás y Faro, O.P. † | Vicar Apostolic of Fukien (Kuiceu), China |
| 14 Mar | 45.3 | Francesco Lucerna Rorengo di Rorà † | Archbishop of Torino {Turin}, Italy |
| 21 Mar | 65.5 | Juan Lorenzo Irigoyen Dutari † | Bishop of Pamplona, Spain |
| 24 Mar | 79.2 | Daniel O’Reilly † | Bishop of Clogher, Ireland |
| 25 Mar | 57.1 | Francesco Ignazio Guiso † | Bishop of Ampurias e Civita, Italy |
| 14 Apr | | Emanuello Rao-Torres † | Prelate of Santa Lucia del Mela, Italy |
| 18 Apr | 78.2 | Stanislaus Wykowski † | Auxiliary Bishop of Przemyśl, Poland |
| 22 Apr | 73.0 | Guglelmo Camaldari † | Archbishop of Rossano, Italy |
| 5 May | 63.2 | Scipione Ardoino Alcontres, C.R. † | Archbishop of Messina, Italy |
| 7 May | 100.3 | Peter O’Donnellan † | Bishop of Clonfert, Ireland |
| 11 May | 77.1 | Armand Bazin de Bezons † | Bishop of Carcassonne, France |
| 23 May | 69.7 | Heinrich Joseph von Nitschke † | Auxiliary Bishop of Bamberg, Germany |
| 24 May | 64.4 | Govaart-Geeraard van Eersel † | Bishop of Gent {Ghent, Gand}, Belgium |
| 26 May | 52.9 | Diego Genovesi † | Bishop of Squillace, Italy |
| 26 May | 78.4 | Eugene (Owen) Geoghegan † | Coadjutor Bishop of Meath, Ireland |
| 28 May | 67.5 | Anton Maria Martin von Stegner † | Auxiliary Bishop of Wien {Vienna}, Austria |
| Jun | 80.6 | Pietro Antonio Zuccheri † | Bishop of Krk (Veglia), Croatia |
| 8 Jun | 74.3 | Filippo Mornati † | Bishop of Nepi e Sutri, Italy |
| 14 Jun | 78.7 | Michele Maria Capece Galeota, C.R. † | Archbishop Emeritus of Capua, Italy |
| Jul | 84.2 | Francesco Guidi † | Archbishop of Pisa, Italy |
| 1 Jul | 68.1 | Carlo Gagliardi † | Bishop of Muro Lucano, Italy |
| 9 Jul | 59.9 | Nicola Pugliesi † | Archbishop Emeritus of Dubrovnik (Ragusa), Croatia |
| 12 Jul | 53.9 | Antoni Adam Młodowski-Struś, O.S.B.M. † | Bishop of Volodymyr (Włodzimierz) et Brėst (Ukrainian) |
| 9 Aug | 64.5 | Felice Antonio Bianchi † | Auxiliary Bishop of Modena, Italy |
| 18 Aug | 92.6 | Augustine Cheevers, O.S.A. † | Bishop of Meath, Ireland |
| 3 Sep | 73.8 | Antonio De Cumis † | Bishop of Catanzaro, Italy |
| 19 Sep | 86.6 | Francisco Mendo Trigoso † | Bishop of Viseu, Portugal |
| 30 Sep | 70.9 | Domenico Poltri † | Bishop of San Miniato, Italy |
| 1 Oct | 70.1 | Gaetano Fantuzzi † | Cardinal, Cardinal-Priest of San Pietro in Vincoli |
| 3 Dec | 90.8 | Thomas Fabiani † | Bishop of Belcastro, Italy |
| 3 Dec | 72.4 | James Grant † | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 10 Dec | 78.9 | Theophilus MacCartan † | Bishop of Down and Connor, Ireland |
| 26 Dec | 72.8 | John Joseph Hornyold † | Vicar Apostolic of Midland District, England, Great Britain |
| 31 Dec | 82.6 | Leopold Maria Joseph von Spaur † | Bishop of Brixen {Bressanone}, Italy |