| Date | Age | Bishop | Title |
|---|
| unknown | 75.0 | Giuseppe Graziosi † | Auxiliary Bishop of Palestrina, Italy |
| unknown | | Pierre Le Labousse † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| unknown | 63.6 | Gioacchino Maria Mancusi (Mancuso) † | Archbishop of Conza, Italy |
| unknown | 71.0 | Louis-Hector-Honoré-Maxime de Sabran † | Bishop of Laon, France |
| 11 Jan | 57.2 | Giovanni Battista Canaveri, C.O. † | Bishop of Vercelli, Italy |
| 23 Jan | 80.2 | Leonardo Antonelli † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 27 Jan | 89.9 | Donato de’ Liguori † | Bishop of Venafro, Italy |
| 13 Feb | 83.9 | Francesco Maria Locatelli † | Cardinal, Bishop of Spoleto, Italy |
| 18 Feb | 75.0 | Marie-Charles-Isidore de Mercy † | Archbishop of Bourges, France |
| 1 Mar | 78.4 | Pedro Nolasco Mora Mora, O. de M. † | Bishop of Solsona, Spain |
| 4 Mar | 66.1 | Arnaud-Antoine Garnault, M.E.P. † | Vicar Apostolic of Siam, Thailand |
| 19 Mar | 82.3 | Antoine-Eléonore-Léon Le Clerc de Juigné † | Archbishop Emeritus of Paris, France |
| 20 Mar | 72.1 | Charles Erskine of Kellie † | Cardinal, Deacon of Roma {Rome}, Italy |
| 21 Mar | 73.1 | Ippolito Antonio Vincenti Mareri † | Cardinal, Cardinal-Bishop of Sabina |
| Apr | 79.0 | Filippo d’Aprile † | Bishop of Melfi e Rapolla, Italy |
| 1 Apr | 74.2 | James Louis O’Donel, O.F.M. Obs. † | Vicar Apostolic Emeritus of Newfoundland, Canada |
| 8 Apr | 79.2 | José Antonio Martínez de Aldunate † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 15 Apr | 67.1 | Francisco José de Souza Lima † | Auxiliary Bishop of Braga, Portugal |
| May | 73.2 | Antonio Rossi † | Bishop of Veroli, Italy |
| 1 May | 82.9 | Filippo López y Rojo, C.R. † | Archbishop Emeritus of Palermo, Italy |
| 11 Jun | 74.9 | [André Constant], O.P. † | Bishop Emeritus of [Lot-et-Garonne (Constitutional), France] |
| 22 Jun | 72.1 | Ferenc Miklósy † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 2 Jul | 73.1 | Miklós Milassin, O.F.M. Obs. † | Bishop of Székesfehérvár (Albareale), Hungary |
| 9 Jul | 65.6 | Felipe Peláez Caunedo † | Bishop of Lugo, Spain |
| 15 Jul | 62.1 | Florijan Korsak † | Auxiliary Bishop of Lutsk and Ostroh (Ukrainian), Ukraine |
| 15 Jul | 75.9 | Seignelay (Charles) Colbert (Cuthbert) de Castle Hill † | Bishop of Rodez, France |
| 23 Jul | 78.8 | Giuseppe Corrado Panzini † | Bishop of Ugento, Italy |
| 24 Jul | 88.5 | Juan Manuel Moscoso y Peralta † | Archbishop of Granada, Spain |
| 28 Jul | 61.8 | Cyprian Odyniec, S.J. † | Auxiliary Bishop of Mohilev, Belarus |
| 20 Aug | 63.4 | Bernardo Maria (Hercules Antonio Vincent) Carenzoni, O.S.B. † | Bishop of Feltre, Italy |
| 27 Aug | 44.6 | Antoine Casimir Libère de Stockem † | Auxiliary Bishop of Liège, Belgium |
| 1 Sep | 89.6 | Lorenzo Potenza † | Bishop of Sarno, Italy |
| 12 Sep | 82.2 | Antonín Theodor Colloredo von Wallsee und Mels † | Cardinal, Archbishop of Olomouc, Czechia |
| 9 Oct | 78.5 | Filippo Casoni † | Cardinal, Secretary Emeritus of the Secretariat of State |
| 15 Oct | 82.1 | George Hay † | Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 17 Nov | | Kapriel Garulian (Ghadroul-Avkadian) † | Bishop of Alep (Armenian), Syria |
| 22 Nov | 62.2 | Pedro Luis Blanco † | Bishop of León, Spain |
| Dec | 78.2 | Bartolomé Antonio Fernández Sobrado, O.F.M. Cap. † | Bishop of Ceuta, Spain |
| 21 Dec | 69.7 | Orazio della Torre † | Bishop of Mazara del Vallo, Italy |
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