| Date | Age | Bishop | Title |
|---|
| unknown | | Ignace Karouth, B.S. † | Archbishop of Tyr (Melkite Greek), Lebanon |
| 2 Jan | 66.1 | Luigi Giamporcaro † | Bishop of Monopoli, Italy |
| 11 Jan | 53.4 | Giuseppe Autelitano † | Bishop of Nusco, Italy |
| 26 Jan | 70.1 | Luigi Maria Parisio (Canisio) † | Archbishop of Gaeta, Italy |
| 27 Jan | 68.0 | Benedetto Terenzio † | Bishop of Trivento, Italy |
| 10 Feb | 65.8 | Giuseppe Carlo Sanguettola † | Bishop of Crema, Italy |
| 11 Feb | 53.1 | Aidan Devereux † | Vicar Apostolic of Cape of Good Hope, Eastern District {Capo de Buona Speranza, Distretto Orientale}, South Africa |
| 13 Feb | 71.8 | Antonio Monforte † | Bishop of Troia, Italy |
| 17 Feb | 72.4 | Gregorio Sánchez y Jiménez (Rubio), O.S.H. † | Bishop of Ávila, Spain |
| 23 Feb | 79.4 | Niccola Berlingeri † | Bishop of Nicastro, Italy |
| 27 Feb | 70.3 | Jerónimo José da Costa Rebelo † | Bishop of Porto, Portugal |
| 31 Mar | 55.3 | Joaquín Fernández Cortina † | Bishop of Sigüenza, Spain |
| 13 Apr | 54.3 | Pietro Niccolò Forti † | Bishop of Pescia, Italy |
| 23 Apr | 73.9 | Josef Anton Salzmann † | Bishop of Basel, Switzerland |
| 27 Apr | 68.4 | Stanislaw Dekowski † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| 2 May | 72.4 | Franz Xavier (Franciszek Ksawery) Luschin (Luszin) † | Archbishop of Gorizia e Gradisca, Italy |
| 5 May | 63.8 | Vincenzo Scarpa † | Bishop-Elect of Belluno e Feltre, Italy |
| 12 May | 77.9 | Luigi Emmanuele Nicolo Lambruschini, B. † | Cardinal, Prefect of the Congregation of (Sacred) Rites |
| 13 May | 68.2 | Vito Angelo Salvemini † | Archbishop of Manfredonia (e Vieste), Italy |
| 17 May | 38.9 | Charles Henry Davis, O.S.B. † | Bishop of Maitland, Australia |
| 24 May | 62.1 | Michele Franchini † | Bishop of Nicotera e Tropea, Italy |
| 15 Jun | 67.3 | Raffaele Fornari † | Cardinal, Prefect of the Congregation for Studies |
| 14 Jul | 66.2 | Mariano Venturi † | Bishop of Veroli, Italy |
| 15 Jul | 70.9 | Franciszek Ignacy Lewiński † | Auxiliary Bishop of Janów Podlaski (Podlaska o Janów), Poland |
| 17 Jul | 78.1 | Thomas Maguire † | Priest of Québec, Canada |
| 21 Jul | 49.4 | José Escolano y Fenoi † | Bishop of Jaén, Spain |
| 28 Jul | 52.3 | Angelo Fusinato † | Bishop of Concordia (Sagittaria), Italy |
| 7 Aug | 68.8 | Antonio Di Macco † | Archbishop of Acerenza e Matera, Italy |
| 8 Aug | 51.0 | Vincenzo Maria Marolda, C.Ss.R. † | Bishop of Capaccio e Vallo della Lucania, Italy |
| 12 Aug | 89.5 | Francisco Ferreira de Azevedo † | Bishop of Goiás, Brazil |
| 18 Aug | 76.7 | Eugenio Mendoza Jara † | Bishop of Cuzco, Peru |
| 19 Aug | 66.2 | Francesco Iavarone † | Bishop of Sant’Agata de’ Goti, Italy |
| 19 Aug | | Francesco Javarone † | Bishop of Acerra, Italy |
| 20 Aug | | Pietro Scialli † | Archbishop Emeritus of Skopje, North Macedonia |
| 23 Aug | 65.3 | Bartol Bozanić † | Bishop of Krk (Veglia), Croatia |
| 31 Aug | 73.9 | Pio Bighi † | Titular Archbishop of Philippi |
| 1 Sep | 35.5 | Nicolas-Michel Krick, M.E.P. † | Prefect of Lhassa, China |
| 7 Sep | 68.6 | Joseph Ferrabian (Farraïan), I.C.P.B. † | Archbishop of Mardin (Armenian), Turkey |
| 9 Sep | 72.3 | Leone Ciampa, O.F.M. Disc. † | Archbishop of Sorrento, Italy |
| 9 Sep | 72.5 | Angelo Mai † | Cardinal, Librarian of the Vatican Library |
| 12 Sep | 53.2 | Edward Barron † | Vicar Apostolic Emeritus of Two Guineas and Senegambia {Guinea Superiore e Inferiore e di Sierra Leone}, Gabon |
| 15 Sep | 88.3 | Pietro Giovanni Zanardi † | Bishop of Guastalla, Italy |
| 19 Sep | 64.0 | Claudio Samuelli † | Bishop of Montepulciano, Italy |
| 20 Sep | 46.6 | Francis Xavier Gartland † | Bishop of Savannah, Georgia, USA |
| 5 Oct | 66.2 | Nicolás Luis Lezo y Garro † | Titular Archbishop of Seleucia in Isauria |
| 13 Oct | 73.6 | Giovanni Maria Visconte Proto, O.S.B. † | Bishop of Cefalù, Italy |
| 21 Oct | 56.4 | Nicolas-Théodore Olivier † | Bishop of Évreux, France |
| 3 Nov | 63.8 | Joseph IX Ragi (Youssef) El-Khazen (Gazeno) † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 7 Nov | 54.0 | José Maria da Silva Torres, O.S.B. † | Coadjutor Bishop Emeritus of Braga, Portugal |
| 14 Nov | 89.4 | Antonio Fernando José de Echánove y Zaldívar † | Archbishop of Tarragona, Spain |
| 15 Nov | 75.6 | Francisco de La Puente, O.P. † | Bishop of Segovia, Spain |
| 24 Nov | 62.9 | José María Yáñez de Montenegro † | Bishop of Cochabamba, Bolivia |
| 26 Nov | 73.5 | Dionisio-Andrea Pasio † | Bishop of Alessandria (della Paglia), Italy |
| 27 Nov | 63.1 | Thomas Lawrence Burgess † | Bishop of Clifton, England, Great Britain |
| 29 Nov | 56.3 | Nicola Rossi † | Bishop of Todi, Italy |
| 10 Dec | 56.8 | Giuseppe Maria Pietro Raffaele Castellani, O.E.S.A. † | Titular Bishop of Porphyreon |
| 17 Dec | 70.0 | José María Luciano Becerra y Jiménez † | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 19 Dec | 76.2 | Giuseppe Riccardi † | Bishop of Boiano, Italy |
| 24 Dec | 58.9 | Damián Gordo Sáez † | Bishop of Tortosa, Spain |
| 29 Dec | 71.9 | Jean-Baptiste Bouvier † | Bishop of Le Mans, France |
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