| Date | Age | Bishop | Title |
| unknown | 76.4 | Girolamo Aprile e Benso † | Bishop of Piazza Armerina, Italy |
| unknown | | [Ignatius George V Sayar] † | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 15 Jan | 66.1 | Francesco Colangelo, C.O. † | Bishop of Castellammare di Stabia, Italy |
| 18 Jan | 60.8 | Giuseppe-Maria Lais † | Bishop of Ferentino, Italy |
| 28 Jan | 63.8 | Thomas Penswick † | Vicar Apostolic of Northern District, England, Great Britain |
| 30 Jan | 71.1 | Pedro Inguanzo Rivero † | Cardinal, Archbishop of Toledo, Spain |
| 6 Feb | 68.0 | Adam Michal Prażmowski † | Bishop of Płock, Poland |
| 7 Feb | 77.0 | Alexis Saussol † | Bishop of Sées {Séez}, France |
| 16 Feb | 36.1 | Johann Nepomuk Fortner, C.Ss.R. † | Vicar Apostolic of Sofia e Plovdiv, Bulgaria |
| 17 Feb | 63.7 | Antonio Podestá † | Bishop of Saluzzo, Italy |
| 18 Feb | 87.8 | Carlo Maria Rosini † | Bishop of Pozzuoli, Italy |
| 6 Mar | 79.7 | Bernhard Boll, O. Cist. † | Archbishop of Freiburg im Breisgau, Germany |
| 20 Mar | 76.9 | Claude-Joseph-Judith-François-Xavier de Sagey † | Bishop Emeritus of Tulle, France |
| 26 Mar | 80.3 | Gregorio Ceruelo de la Fuente † | Bishop of Oviedo, Spain |
| 27 Mar | 67.8 | François-Antoine Arbaud † | Bishop of Gap, France |
| 29 Mar | 79.4 | Giuseppe de Nobili † | Archbishop of Lucca, Italy |
| 17 Apr | 47.4 | Jean-Pierre-Marie Cadalen † | Bishop of Saint-Flour, France |
| 20 Apr | 75.6 | Jean-Charles-Richard Dancel † | Bishop of Bayeux, France |
| 25 May | 72.9 | [François Étienne] † | Bishop Emeritus of [Vaucluse (Constitutional), France] |
| 7 Jun | 76.4 | Patrick MacMahon (McMahon) † | Bishop of Killaloe, Ireland |
| 14 Jun | 76.6 | Lodovico Loschi † | Bishop of Piacenza, Italy |
| 11 Jul | 73.3 | James Yorke Bramston † | Vicar Apostolic of London District, England, Great Britain |
| 11 Jul | 73.8 | Jan Chrzciciel Louis Masclet, O.M. † | Auxiliary Bishop of Minsk, Belarus |
| 19 Jul | 68.4 | Jean-Louis Anne Madelain Lefebvre de Cheverus † | Cardinal, Archbishop of Bordeaux, France |
| 20 Jul | | Basilios Elias Khalil, B.S. † | Bishop of Saïda (Melkite Greek), Lebanon |
| 22 Jul | 81.4 | Nicolo Navoni † | Archbishop of Cagliari, Italy |
| 25 Jul | 82.5 | Andrea Lucibello † | Bishop Emeritus of Aquino, Sora, e Pontecorvo, Italy |
| 30 Jul | 59.5 | Benito Lascano y Castillo † | Bishop of Córdoba (Tucumán), Argentina |
| 8 Aug | 71.8 | Giovanni Giuseppe Antonio Cavalleri, O.F.M. Cap. † | Bishop of Bobbio, Italy |
| 11 Aug | 84.2 | Rainieri Alliata † | Archbishop of Pisa, Italy |
| 11 Aug | 72.7 | Alexandre-Charles-Louis-Rose de Lostanges-Saint-Alvère † | Bishop of Périgueux, France |
| 12 Aug | | Paul Galata † | Archbishop of Durrës (Durazzo), Albania |
| 15 Aug | 69.1 | Ignatz Albert (Joseph Ignatz Alexius) von Riegg, O.E.S.A. † | Bishop of Augsburg, Germany |
| 28 Aug | 67.9 | Diego Martínez Carlón y Teruel † | Bishop of Jaén, Spain |
| 5 Sep | 54.9 | Ferdynand Maria von Chotek † | Archbishop of Olomouc, Czechia |
| 7 Sep | 42.9 | Jean-Baptiste Auvergne † | Titular Archbishop of Iconium |
| 14 Sep | 84.5 | Luigi Bottiglia Savoulx † | Cardinal, Prefect of the Apostolic Signatura |
| 26 Sep | 60.3 | Joseph von Hohenzollern-Hechingen † | Bishop of Warmia (Ermland), Poland |
| 3 Oct | 72.7 | Louis-Charles-Auguste Hébert, M.E.P. † | Vicar Apostolic of Madurai and Coromandel Coast, India |
| 19 Oct | 64.1 | Justo de Santa María de Oro y Albarracín, O.P. † | Bishop of San Juan de Cuyo, Argentina |
| 2 Nov | 92.1 | Giuseppe Capecelatro † | Archbishop Emeritus of Taranto, Italy |
| 8 Nov | 57.8 | Francesco Iovinelli, C.M. † | Bishop of Bovino, Italy |
| 11 Nov | 76.6 | Josef Ludwig Alois von Hommer † | Bishop of Trier, Germany |
| 19 Nov | 74.4 | Antoine Rochaix † | Bishop of Tarentaise, France |
| 23 Nov | 69.7 | Giuseppe Maria (Carlo) Velzi, O.P. † | Cardinal, Bishop of Corneto (Tarquinia) e Montefiascone, Italy |
| 26 Nov | 59.6 | Antonio Perchiacca † | Bishop of Trivento, Italy |
| 27 Nov | 83.2 | Joachim Tasbasian † | Archbishop of Mardin (Armenian), Turkey |
| 30 Dec | 76.8 | Angelico Lorenzo Nicolas Méstria, O.F.M. Cap. † | Bishop of Ugento, Italy |