| Date | Age | Bishop | Title |
|---|
| unknown | | Choukri Aroutin † | Bishop of Alep [Beroea, Halab] (Maronite), Syria |
| unknown | 78.9 | Pietro Silvio di Gennaro † | Bishop of Venosa, Italy |
| unknown | | Michel El-Khazen † | Titular Bishop of Caesarea in Palaestina |
| unknown | 53.2 | Franciszek Alojzy Junosza Gzowski † | Auxiliary Bishop of Vilnius, Lithuania |
| unknown | | Jean-Simon Kemo † | Archbishop of Seert (Chaldean), Turkey |
| unknown | | Louis François Radel † | Prefect of French Guiana-Cayenne, Antilles |
| 1 Jan | 68.7 | Giuseppe Maria Pilo, O. Carm. † | Bishop of Ales e Terralba, Italy |
| 22 Jan | 70.6 | Antoni Wacław Betański † | Bishop of Przemyśl, Poland |
| 29 Jan | 54.8 | Manuel de Vasconcellos Pereira † | Bishop of Lamego, Portugal |
| 2 Feb | 85.1 | Ubaldo Baldassini, B. † | Bishop of Jesi, Italy |
| 3 Feb | 64.0 | Josip Galjuf (Gallyuff) † | Bishop of Zagreb (Agram), Croatia |
| 4 Feb | 81.0 | Lazzaro Vladagni † | Archbishop of Bar (Antivari), Montenegro |
| 8 Feb | 57.0 | Giovanni Antioco Serra Urru (Sisra) † | Bishop of Galtelli-Nuoro (Galtelly Nori), Italy |
| 8 Mar | 54.5 | Antonio Paramo Somoza † | Bishop-Elect of Lugo, Spain |
| 15 Mar | 75.2 | Alexandre Lascaris de Vintimille † | Bishop of Toulon, France |
| 18 Mar | 77.4 | Fabio Maria Palumbo, C.R. † | Bishop of Conversano, Italy |
| 24 Mar | 82.3 | Giovanni Battista Jacobini † | Bishop of Veroli, Italy |
| 29 Mar | 52.1 | Andrea Benedetto Ganassoni, O.S.B. † | Bishop of Feltre, Italy |
| 7 Apr | 69.5 | Benedetto Pucilli † | Bishop of Terracina, Priverno e Sezze, Italy |
| 9 Apr | 67.1 | Ferdinand Christoph von Waldburg-Zeil † | Bishop of Chiemsee, Germany |
| 11 Apr | 73.3 | Fernando de Sousa e Silva † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 20 May | 77.9 | Giuseppe Tomaso de Rossi † | Bishop of Alessandria (della Paglia), Italy |
| 20 Jun | 58.8 | John Butler, S.J. † | Former Bishop-Elect of Limerick, Ireland |
| 30 Jun | 78.3 | Giovanni Girolamo Gradenigo, C.R. † | Archbishop of Udine, Italy |
| 6 Jul | | Andrew Donnellan † | Bishop of Clonfert, Ireland |
| 12 Jul | 41.9 | Angelin (Joseph Jakob) Geiselmayer, O.C.D. † | Vicar Apostolic of Great Mogul (Mughals), India |
| 31 Jul | 75.5 | Antonio Branciforte Colonna † | Cardinal, Bishop of Agrigento (Girgenti), Italy |
| 8 Aug | 59.6 | Paolo Maurizio Caissotti, C.O. † | Bishop of Asti, Italy |
| 8 Aug | 65.4 | Angel Molinos, O.P. † | Bishop of Zamora, Spain |
| 20 Aug | 82.8 | Niccola Maria Calcagnini † | Bishop of Cittŕ Ducale, Italy |
| 7 Sep | 69.4 | Giuseppe Maria Carafa, C.R. † | Bishop Emeritus of Mileto, Italy |
| 10 Sep | 44.3 | José (Joseph) Cariati (Kariattil) † | Archbishop of Cranganore (Angamala), India |
| 24 Sep | 64.8 | Francesco d’Afflitto † | Bishop of Lettere (-Gragnano), Italy |
| 25 Sep | 71.6 | Giacinto Sardi † | Bishop of Aquino e Pontecorvo, Italy |
| Oct | 55.4 | Johann Anton Miocevich † | Bishop of Trogir (Traů), Croatia |
| 15 Oct | 74.9 | Bernardo Antonio Calderón Lázaro † | Bishop of Osma, Spain |
| 17 Oct | 80.9 | Isidoro Sánchez de Luna, O.S.B. † | Archbishop Emeritus of Salerno, Italy |
| 19 Oct | 86.7 | Nicholas Sweetman † | Bishop of Ferns, Ireland |
| 29 Oct | 58.8 | John Carpenter † | Archbishop of Dublin, Ireland |
| 30 Oct | 66.0 | Matej Frantisek von Chorinsky † | Bishop of Brno, Czechia |
| Nov | 58.8 | Simon Quinn † | Coadjutor Bishop of Cloyne and Ross, Ireland |
| 19 Nov | 79.6 | Gaetano Galbato † | Auxiliary Bishop of Messina, Italy |
| 19 Nov | 57.9 | André Teixeira Palha † | Bishop of Faro {Algarve}, Portugal |
| Dec | 62.1 | Mateo Joaquin Rubio de Arevalo † | Bishop of Cebu, Philippines |
| 2 Dec | 77.9 | James O’Fallon † | Bishop of Elphin, Ireland |
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