| Date | Age | Bishop | Title |
|---|
| unknown | | António Freire Gameiro de Sousa † | Bishop of Aveiro, Portugal |
| unknown | 79.0 | Tommaso Mancini † | Bishop of Città della Pieve, Italy |
| unknown | 59.4 | Niccolò Marcacci † | Bishop of Arezzo, Italy |
| unknown | 87.4 | Filippo Paini † | Bishop of Sulmona, Italy |
| unknown | | Ignazio Andrea Sambiase † | Archbishop of Conza, Italy |
| unknown | 73.7 | Pasquale Sansone † | Bishop of Ischia, Italy |
| unknown | 58.0 | Francesco Pio Santi † | Bishop of Sovana-Pitigliano, Italy |
| unknown | 71.0 | Lorenzo Suarez de Cantillana † | Bishop of Paraguay |
| unknown | 73.1 | Anselmo Maria Toppi † | Bishop of Termoli, Italy |
| 6 Jan | 79.0 | Jean Jacques (Johann Jakob) Lantz † | Auxiliary Bishop of Strasbourg, France |
| 8 Jan | 62.7 | Francisco Ignacio Iñigo Angulo † | Bishop of Osma, Spain |
| 22 Jan | 70.1 | Francisco Javier Cabrera Velasco † | Bishop of Avila, Spain |
| 23 Jan | 75.4 | François-Gaspard de Jouffroy de Gonssans † | Bishop of Le Mans, France |
| 26 Jan | 74.8 | Carlo Rezzonico (Jr.) † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 2 Feb | 67.1 | Feliciano Alonso, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 9 Feb | 62.5 | Giovanni Archinto † | Cardinal, Cardinal-Bishop of Sabina |
| 11 Feb | 63.4 | John Geddes † | Coadjutor Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 15 Feb | 61.0 | Giuseppe Gioacchino Lovera † | Bishop of Saluzzo, Italy |
| 17 Feb | 71.6 | Alexandre da Silva Pedrosa Guimarães † | Bishop Emeritus of Macau, China |
| 22 Feb | 58.1 | Johann Baptist Lachenbauer, O. Cr. † | Bishop of Brno, Czech Republic |
| 24 Feb | 68.1 | Giovanni Andrea Serrao † | Bishop of Potenza, Italy |
| 7 Mar | 78.5 | Bartolomeu Manoel Mendes dos Reis † | Bishop Emeritus of Mariana, Brazil |
| 8 Mar | 58.7 | Paolo Pozzuoli † | Bishop of Sant’Agata de’ Goti, Italy |
| 15 Apr | 64.9 | Yves-Alexandre de Marbeuf † | Archbishop of Lyon, France |
| 17 Apr | 73.3 | Jose Martinez Palomino y Lopez de Lorena † | Bishop of Foreign Diocese |
| 7 May | 70.5 | Gennaro Clemente Francone † | Bishop Emeritus of Gaeta, Italy |
| 15 May | 64.4 | Jules-Basile Ferron de La Ferronnays † | Bishop of Lisieux, France |
| 31 May | 65.5 | Félix Rico Rico † | Bishop of Teruel, Spain |
| 21 Jul | 70.0 | Manuel Ferrer y Figueredo † | Bishop of Málaga, Spain |
| 17 Aug | 62.6 | Baltazar Jaime Martínez de Compañón † | Archbishop of Santafé en Nueva Granada, Colombia |
| 29 Aug | 81.7 | Giovanni Angelico Braschi † | Pope (Roma {Rome}, Italy) |
| 16 Sep | 77.3 | Felipe José de Tres-Palacios y Verdeja † | Bishop of San Cristobal de la Habana, Cuba |
| 9 Oct | 57.9 | Pierre-Joseph-Georges Pigneau de Béhaine, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 23 Oct | 72.7 | József Batthyány † | Cardinal, Archbishop of Esztergom, Hungary |
| 30 Oct | 72.7 | José da Avé-Maria Leite da Costa e Silva † | Bishop of Angra, Portugal |
| Nov | 55.5 | Juan Antonio Tamayo, O.S. † | Titular Bishop of Botrys |
| 13 Nov | 59.9 | Carmine Fimiani † | Bishop of Nardò, Italy |
| 18 Nov | 77.0 | Carlo Giuseppe Morozzo † | Bishop of Fossano, Italy |
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