| Date | Age | Bishop | Title |
| unknown | | Salvador Donos Rodríguez † | Vicar General of Valparaíso, Chile |
| unknown | 52.4 | Román Lovera † | Bishop of Mérida, Venezuela |
| 4 Jan | 72.4 | Adrianus Godschalk † | Bishop of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 9 Jan | 68.3 | Odon Thibaudier † | Archbishop of Cambrai, France |
| 12 Jan | 86.0 | Salvatore Magnasco † | Archbishop of Genova, Italy |
| 14 Jan | 83.5 | Henry Edward Manning † | Cardinal, Archbishop of Westminster, England, Great Britain |
| 14 Jan | 75.5 | Giovanni Simeoni † | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 19 Jan | 76.3 | Charles-Louis Gay † | Auxiliary Bishop Emeritus of Poitiers, France |
| 19 Jan | 82.6 | Vincenzo Tizzani, C.R.L. † | Bishop Emeritus of Terni, Italy |
| 21 Jan | 77.8 | Luigi Maria Aguilar, B. † | Archbishop of Brindisi, Italy |
| 26 Jan | 70.3 | Jean-Pierre-François Laforce-Langevin † | Bishop Emeritus of Rimouski (St. Germain of), Québec, Canada |
| Feb | 58.1 | Carmelo Ciotola † | Bishop of Lucera, Italy |
| 2 Feb | 61.6 | Paolo Giuseppe Palma, C.P. † | Archbishop of Bucarest {Bucureşti}, Romania |
| 7 Feb | 70.4 | Édouard-Joseph Bélin † | Bishop of Namur {Namen}, Belgium |
| 17 Feb | 56.4 | Heinrich Feiten † | Auxiliary Bishop of Trier, Germany |
| 20 Feb | 68.3 | Joseph-Maxence Péronne † | Bishop of Beauvais (-Noyon-Senlis), France |
| 21 Feb | 63.9 | Giustino Puletti † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 22 Feb | 81.3 | Francesco Gandolfi † | Bishop Emeritus of Tarquinia e Civitavecchia, Italy |
| 22 Feb | 64.1 | Bernard Hermann Koeckemann, SS.CC. † | Vicar Apostolic of Sandwich Islands, Hawaii, USA |
| 22 Feb | 69.8 | Cassien-Léonard de Peretti † | Auxiliary Bishop of Ajaccio, France |
| 23 Feb | 67.4 | Gaspard Mermillod † | Cardinal, Bishop Emeritus of Lausanne et Genève, Switzerland |
| 24 Feb | 84.2 | Ágoston Roskoványi † | Bishop of Nitra, Slovakia |
| 1 Mar | 75.9 | Jean-Baptiste-Marie-Simon Jacquenet † | Bishop of Amiens, France |
| 15 Mar | 80.6 | Francesco Benassi † | Bishop Emeritus of Guastalla, Italy |
| 16 Mar | 72.7 | William Smith † | Archbishop of Saint Andrews and Edinburgh, Scotland, Great Britain |
| 21 Mar | 62.5 | Giovanni Battista Antonio Bartolomeo Marcellino Berardi, O.C.D. † | Coadjutor Vicar Apostolic of Verapoly, India |
| 6 Apr | 80.3 | Tomás Belestá y Cambeses † | Bishop of Zamora, Spain |
| 21 Apr | 64.3 | Alessio Maria Biffoli, O.S.M. † | Bishop of Fossombrone, Italy |
| 25 Apr | 56.8 | Paul-François Puginier, M.E.P. † | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 1 May | 54.2 | Andrés Chinchón, O.P. † | Vicar Apostolic of Amoy, China |
| 19 May | 66.4 | Celestino (Raffaele) Zini, Sch. P. † | Archbishop of Siena, Italy |
| 26 May | 70.1 | Jean-Joseph Marchal † | Archbishop of Bourges, France |
| 28 May | 58.4 | Patrick Thomas O’Reilly † | Bishop of Springfield, Massachusetts, USA |
| 15 Jun | 65.3 | Jacques-Théodore Lamarche † | Bishop of Quimper [Cornouailles](-Léon), France |
| 26 Jun | 72.8 | Augusto Theodoli † | Cardinal, Cardinal-Deacon of Santa Maria della Scala |
| 4 Jul | 56.0 | Antonio Maria De Pol † | Bishop of Vicenza, Italy |
| 8 Jul | 69.3 | Francesco Battaglini † | Cardinal, Archbishop of Bologna, Italy |
| 11 Jul | 54.0 | Francesco Maria Imparati, O.F.M. † | Archbishop of Acerenza e Matera, Italy |
| 17 Jul | 76.8 | Giuseppe D’Annibale † | Cardinal, Prefect of the Congregation for Indulgences and Relics |
| 31 Jul | 72.2 | Ioan Vancea (Vancsa) † | Archbishop of Făgăraş şi Alba Iulia (Romanian), Romania |
| 3 Aug | 68.9 | Christophe-Etienne Bonjean, O.M.I. † | Archbishop of Colombo, Sri Lanka |
| 6 Aug | 47.6 | Federico Federici † | Bishop of Foligno, Italy |
| 20 Aug | 78.9 | Friedrich Egon von Fürstenberg † | Cardinal, Archbishop of Olomouc, Czech Republic |
| 23 Aug | 70.8 | Luciano Saracani, O.F.M. † | Bishop Emeritus of Poggio Mirteto, Italy |
| 8 Sep | 66.8 | Thomas Timothy O’Mahony † | Auxiliary Bishop of Toronto, Ontario, Canada |
| 8 Sep | 58.6 | Alexis Riccaz, M.S.F.S. † | Bishop of Nagpur, India |
| 11 Sep | 62.7 | Augusto Antonio Vicentini † | Archbishop of L’Aquila, Italy |
| 16 Sep | 63.6 | Edward Henry Howard † | Cardinal, Bishop of Frascati, Italy |
| 22 Sep | 83.6 | Giuseppe de’ Bianchi Dottula † | Archbishop of Trani e Barletta (e Nazareth e Bisceglie), Italy |
| 29 Sep | 69.9 | François-Jean-Marie Laouënan, M.E.P. † | Archbishop of Pondicherry, India |
| Oct | 88.7 | Pawel Rzewuski † | Auxiliary Bishop-Elect of Warszawa {Warsaw}, Poland |
| 13 Oct | 67.4 | Vincenzo Gregorio Berchialla, O.M.V. † | Archbishop of Cagliari, Italy |
| 27 Oct | 63.7 | Josef Jan Hais † | Bishop of Hradec Králové, Czech Republic |
| 29 Oct | 63.1 | Domenico Pio Rossi, O.P. † | Bishop of Concordia (Sagittaria), Italy |
| 9 Nov | 59.0 | Giovanni Battista Paolucci † | Bishop of Viterbo e Tuscania, Italy |
| 13 Nov | 32.5 | Stanislas Henri Verjus, M.S.C. † | Coadjutor Vicar Apostolic of New Guinea |
| 17 Nov | 79.2 | Paolo Pinna † | Bishop of Ampurias e Tempio, Italy |
| 20 Nov | 64.1 | Edmond-Joseph Dumont † | Bishop Emeritus of Tournai {Doornik}, Belgium |
| 25 Nov | 67.1 | Charles-Martial Allemand-Lavigerie † | Cardinal, Archbishop of Alger, Algeria |
| Dec | 75.2 | Pedro María Lagüera y Menezo † | Bishop of Osma, Spain |
| 12 Dec | 74.0 | Tommaso Mesmer † | Bishop of Terracina, Priverno e Sezze, Italy |
| 18 Dec | 67.9 | François Laurencin † | Apostolic Administrator of Guadeloupe et Basse-Terre, Guadeloupe, Antilles |
| 23 Dec | 85.8 | Rambaldo Magagnini † | Bishop of Jesi, Italy |
| 25 Dec | 71.2 | Jules François Lecoq † | Bishop of Nantes, France |