| Date | Age | Bishop | Title |
| unknown | 58.1 | Francisco de Paula Campo y Pérez † | Bishop of Comayagua, Honduras |
| 3 Jan | | William O’Higgins † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 4 Jan | 72.1 | Francisco Javier Rodríguez y Obregón † | Bishop of Badajoz, Spain |
| 7 Jan | 73.2 | Giacomo Traversi † | Bishop Emeritus of Segni, Italy |
| 20 Jan | 55.0 | Melchior Ferdinand Joseph von Diepenbrock † | Cardinal, Bishop of Wrocław (Breslau), Poland |
| 29 Jan | 47.5 | Luigi Guglielmi † | Bishop of Verona, Italy |
| 3 Feb | 44.1 | Jean-Joseph-Jean-Baptiste Ferréol, M.E.P. † | Vicar Apostolic of Corea |
| 11 Feb | 69.3 | Carlos Laborda Clau † | Bishop of Palencia, Spain |
| 27 Feb | 62.6 | Stefano Pavlovic-Lucic † | Bishop of Kotor (Cattaro), Montenegro |
| 8 Mar | 71.5 | Francesco Agnini † | Bishop of Luni, Sarzana e Brugnato, Italy |
| 9 Mar | 82.6 | Domingo de Silos Santiago Apollinario Moreno, O.S.B. † | Bishop of Cádiz, Spain |
| 13 Mar | 48.7 | Bernardo (Philip) Pontanova, O.C.D. † | Titular Bishop of Tanis |
| 14 Mar | 75.8 | Vinzenz Eduard Milde † | Archbishop of Wien {Vienna}, Austria |
| 17 Mar | 76.2 | Diego de Aranda y Carpinteiro † | Bishop of Guadalajara, Jalisco, México |
| 31 Mar | 83.3 | Maximilian Joseph Gottfried Sommerau Beeckh † | Cardinal, Archbishop of Olomouc, Czech Republic |
| 4 Apr | 61.5 | Jan Kanty Dąbrowski † | Auxiliary Bishop of Gniezno e Poznań, Poland |
| 19 Apr | 81.0 | José Jorge de Torres y Estans † | Bishop of Nueva Pamplona, Colombia |
| 22 Apr | 48.0 | Etienne-Raymond Albrand, M.E.P. † | Vicar Apostolic of Kuiceu, China |
| 10 May | 82.9 | Ferdinando Maria Pignatelli, C.R. † | Cardinal, Archbishop of Palermo, Italy |
| 7 Jun | 66.3 | Joseph Norbert Provencher † | Bishop of Saint-Boniface, Manitoba, Canada |
| 16 Jun | 56.3 | Pietro Antonio Garibaldi † | Titular Archbishop of Myra |
| 23 Jun | 56.1 | Giacomo Luigi Brignole † | Cardinal, Official of the Roman Curia - Other |
| 27 Jun | 42.5 | Guillaume Maria Douarre, S.M. † | Vicar Apostolic of Nouvelle-Calédonie, New Caledonia, Pacific (Oceania) |
| 24 Jul | 52.3 | Guillaume-Clément Masson, M.E.P. † | Coadjutor Vicar Apostolic of Southern Tonking {Tonkino Meridionale}, Viet Nam |
| 25 Jul | 51.3 | Jorge de Viteri y Ungo † | Bishop of Nicaragua |
| 3 Aug | 70.6 | Benedetto Denti, O.S.B. † | Bishop of Caltagirone, Italy |
| 23 Aug | 61.6 | Laurent Thomas Choa (Sho'a) † | Archbishop of Kerkūk (Chaldean), Iraq |
| 22 Sep | 81.7 | José Manuel Plaza de la Tejera, O.F.M. † | Bishop of Cuenca, Ecuador |
| 5 Oct | 59.4 | Joseph Dittrich † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 9 Oct | 52.8 | Josephus Gregorius Hagi † | Bishop of Garin (Erzerum) (Armenian) |
| 2 Nov | 66.3 | Costanzo-Michele Fea † | Bishop of Alba (Pompea), Italy |
| 3 Dec | 58.6 | Giovanni Niccolò Tanari (Tanara) † | Titular Patriarch of Antiochia {Antioch} |
| 9 Dec | 88.9 | Jean-François de Saunhac-Belcastel † | Bishop of Perpignan-Elne, France |
| 10 Dec | 53.7 | Manuel José Mosquera y Arboleda † | Archbishop of Santafé en Nueva Granada, Colombia |