| Date | Age | Bishop | Title |
|---|
| unknown | 50.8 | Gregorio Maria Fistilli † | Bishop Emeritus of Capaccio, Italy |
| unknown | 75.2 | Miguel Orozco † | Bishop-Elect of La Paz, Bolivia |
| unknown | 86.2 | Antonio Sánchez Matas, O.F.M. Obs. † | Bishop Emeritus of La Paz, Bolivia |
| 6 Jan | 71.0 | Angelo Maria Scanzano † | Bishop of Castellammare di Stabia, Italy |
| 7 Jan | 81.4 | Filippo Cattani † | Bishop of Reggio Emilia, Italy |
| 17 Jan | 46.0 | Edward Maginn † | Coadjutor Bishop of Derry, Ireland |
| 18 Jan | 67.8 | Juan Antonio Ignacio Fernández Peña y Angulo † | Archbishop of Caracas, Santiago de Venezuela |
| 19 Jan | 33.5 | David Walsh † | Bishop of Cloyne and Ross, Ireland |
| 26 Jan | 52.2 | Filippo de’ Conti Curoli † | Bishop of Rieti, Italy |
| 28 Jan | 64.6 | António de Santo Ilídio da Fonseca e Silva, O.S.B. † | Priest of Order of Saint Benedict |
| 31 Jan | 72.9 | Jean-François de Hercé † | Bishop Emeritus of Nantes, France |
| Feb | 50.9 | Nicola Abrate † | Apostolic Administrator of Terni, Italy |
| 16 Feb | 71.6 | Giovanni Battista Rossi † | Bishop of Pistoia e Prato, Italy |
| 17 Feb | 57.0 | Daniel-Victor Manglard † | Bishop of Saint-Dié, France |
| 18 Feb | 72.3 | Thomas Walsh † | Vicar Apostolic of London District, England, Great Britain |
| 24 Feb | 78.5 | Jules-François de Simony † | Bishop Emeritus of Soissons (-Laon), France |
| 4 Mar | 73.8 | Pietro Ostini † | Cardinal, Prefect of the Congregation of the Council |
| 5 Mar | 46.9 | Alois Josef Schrenk † | Archbishop of Praha {Prague}, Czechia |
| 15 Mar | 74.4 | Giuseppe Gasparo Mezzofanti † | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 21 Mar | 72.5 | Agustín Lorenzo Varela Temes † | Bishop of Salamanca, Spain |
| 24 Mar | 76.2 | Pedro Martínez de San Martín † | Bishop of Barcelona, Spain |
| 27 Mar | 59.8 | Juan Manuel de Irrizarri y Peralta † | Auxiliary Bishop of México, Federal District |
| 29 Mar | 72.2 | Juan Fernández de Sotomayor y Picón † | Bishop of Cartagena, Colombia |
| Apr | 62.0 | Martino Caliendi † | Bishop of Montefeltro, Italy |
| 4 Apr | 61.6 | Jean-Jacques Fayet † | Bishop of Orléans, France |
| 6 Apr | 68.8 | William Crolly † | Archbishop of Armagh, Ireland |
| 7 May | 51.5 | André-Joseph Guitton † | Bishop of Poitiers, France |
| 3 Jun | 61.6 | Tommaso Pasquale Gizzi † | Cardinal, Secretary Emeritus of the Secretariat of State |
| 18 Jun | 43.0 | William Barber Tyler † | Bishop of Hartford, Connecticut, USA |
| 23 Jun | 74.6 | José Hilarión de Etura y Cevallos (Ceballos), O.P. † | Auxiliary Bishop of San Juan de Cuyo, Argentina |
| 29 Jul | 66.5 | Casimiro Albano Pereira de la Cruz † | Priest of Santiago de Chile |
| 6 Sep | 78.6 | Nicolás Joaquín de Arteta y Calisto † | Archbishop of Quito, Ecuador |
| 7 Sep | 66.6 | James Keating † | Bishop of Ferns, Ireland |
| 17 Sep | 86.5 | Pietro Angelo Luigi Pacifico Grati, O.S.M. † | Titular Bishop of Callinicum |
| 23 Sep | 90.4 | Antoine de Pons de La Grange † | Bishop of Moulins, France |
| 16 Oct | 69.1 | Jakob Joseph Wandt † | Bishop of Hildesheim, Germany |
| 29 Oct | 84.2 | Alessandro Berrettini † | Bishop of Teramo, Italy |
| 30 Nov | 77.9 | Giovanni Alessandro Muzi † | Bishop of Città di Castello, Italy |
| 1 Dec | 37.9 | Alexandre-Hippolyte-Xavier Monnet, C.S.Sp. † | Vicar Apostolic of Madagascar, Madagascar |
| 8 Dec | 85.3 | Paul Louis Joseph D’Hautpoul † | Bishop Emeritus of Cahors, France |
| 10 Dec | 69.4 | Sebastiano Soldati † | Bishop of Treviso, Italy |
| 15 Dec | 63.7 | José María Arriaga † | Bishop of Chachapoyas, Peru |
| 19 Dec | 36.1 | Pierre Nicolaus Lavaissière, C.M. † | Vicar Apostolic of Chekiang {Ce-Kiam}, China |
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