| Date | Age | Bishop | Title |
| unknown | | Petrus Ferreux † | Titular Bishop of Zabulon |
| unknown | 45.0 | Isaias Popović, O.S.B.M. † | Vicar Apostolic Emeritus of Valachia (Križevci), Croatia |
| unknown | | Charles Tiernan (Mac Tighearnain) † | Vicar Apostolic of Ardagh (and Clonmacnois), Ireland |
| 6 Jan | 57.9 | Giuseppe Sallustio Fadulfi † | Bishop of Ascoli Piceno, Italy |
| 14 Jan | 64.0 | Federico Caccia † | Cardinal, Archbishop of Milano {Milan}, Italy |
| 26 Jan | 66.1 | Miguel Pontich, O.F.M. † | Bishop of Gerona, Spain |
| Feb | 65.5 | Bernardin Marchese † | Bishop of Sarsina, Italy |
| 1 Feb | 62.0 | Manuel Fernández de Santa Cruz y Sahagún † | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 1 Feb | | Diego Petra † | Archbishop of Sorrento, Italy |
| 18 Feb | 60.0 | Giovanni Giacomo Cavallerini † | Cardinal, Cardinal-Priest of San Bartolomeo all’Isola |
| 4 Mar | 70.1 | György Fenessy † | Bishop of Eger, Hungary |
| 7 Mar | 47.1 | Juan Morillo Velarde † | Archbishop of Sassari, Italy |
| 9 Mar | 47.1 | Manuel Plácido de Quirós de Porras, O.S.B. † | Bishop of Antequera, Oaxaca, México |
| 20 Mar | 84.2 | Charles Montecatini † | Titular Archbishop of Chalcedon |
| Apr | 83.2 | Giacomo Circio † | Bishop of Sant’Agata de’ Goti, Italy |
| Apr | 64.2 | Francesco Maria Giannotti † | Bishop of Segni, Italy |
| 6 May | 60.1 | Henri de Barillon † | Bishop of Luçon, France |
| 11 May | 67.0 | Giovanni Ferrari † | Bishop of Aquino, Italy |
| 19 May | 68.6 | Jean-Ferdinand Van Beughem † | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 25 May | 77.3 | Miguel de Fuentes Blas y Altossano, O. Cist. † | Bishop of Lugo, Spain |
| 13 Jun | 72.2 | Juan Tomás de Rocaberti, O.P. † | Archbishop of Valencia, Spain |
| 9 Jul | 78.7 | Jean Antoine Blavier, O.F.M. Conv. † | Auxiliary Bishop Emeritus of Liège, Belgium |
| 18 Jul | 60.5 | Marco Antonio Contestabile † | Bishop of Bova, Italy |
| 19 Jul | 82.2 | Giovanni Delfino † | Cardinal, Patriarch of Aquileia, Italy |
| 8 Aug | 58.6 | José Martínez del Villar † | Bishop of Barbastro, Spain |
| 19 Aug | 69.4 | José Sáenz de Aguirre, O.S.B. † | Cardinal, Cardinal-Priest of Santa Maria sopra Minerva |
| 20 Aug | 76.6 | Jan Małachowski † | Bishop of Kraków, Poland |
| 23 Aug | 71.6 | Miguel Jeronimo Fuenbuena, O.P. † | Bishop of Albarracin, Spain |
| 30 Aug | 64.6 | Sebastiano Milazzi (Milati), O.S.B. † | Bishop of Lavello, Italy |
| Sep | 76.8 | Giacomo Porrata † | Bishop of Noli, Italy |
| 7 Sep | 67.4 | Manuel de Moura Manuel † | Bishop of Miranda (do Douro), Portugal |
| 19 Sep | 45.9 | Alfonso Aguilar Fernández de Córdoba † | Cardinal, Cardinal-Priest |
| 26 Sep | 73.7 | Manuel de Mollinedo Angulo † | Bishop of Cuzco, Peru |
| Oct | 55.9 | Giuseppe Rodoero † | Bishop of Acerra, Italy |
| 6 Oct | 69.7 | Giuseppe Nicola Gilberti † | Bishop Emeritus of Teano, Italy |
| Nov | 70.3 | Lelio Ardizzone † | Bishop of Casale Monferrato, Italy |
| 11 Nov | 64.8 | Agustín Antonio de Arellano, O.S.A. † | Archbishop of Brindisi, Italy |
| Dec | 63.9 | Leonardo Balsarini † | Bishop Emeritus of Chios (Scio), Greece |
| Dec | 71.1 | Cesare Ugolini † | Bishop of Grosseto, Italy |
| Dec | 65.9 | Angelo Veniero (Venerius) † | Bishop of Tinos and Mykonos, Greece |
| 22 Dec | 71.6 | Michelangelo Mattei † | Titular Patriarch of Antiochia {Antioch} |
| 31 Dec | 57.2 | Giulio Dalla Rosa † | Bishop of Borgo San Donnino, Italy |