| Date | Age | Bishop | Title |
| unknown | 67.0 | Giacomo Abrahamo, O.A.O.C. † | Bishop of Gazireh (Gezira) (Chaldean), Turkey |
| unknown | 76.9 | Filippo Bacciu † | Bishop of Bisarchio o Bisarcio, Italy |
| unknown | 59.6 | Leonardo Baumbach, C.P. † | Bishop of Nicopoli, Bulgaria |
| unknown | 74.2 | Benedetto Bonazzi, O.S.B. † | Archbishop of Benevento, Italy |
| unknown | 75.0 | Benedetto Bonnazzi † | Archbishop of Benevento, Italy |
| unknown | | Pietro Cotel, C.S.Sp. † | Prefect of Oubangui Chari, Central African Republic |
| unknown | 68.6 | Pancrazio Giorgi † | Bishop of Segni, Italy |
| unknown | 83.0 | Giovanni Graziani † | Bishop of Todi, Italy |
| unknown | 48.9 | Stefano Israelian † | Bishop of Karput (Armenian), Turkey |
| unknown | 69.9 | Michele Kaciadurian † | Bishop of Melitene degli Armeni |
| unknown | 59.0 | Michele Malche † | Bishop of Gazireh (Gezira) (Syrian), Turkey |
| unknown | | Matteo Neyens, M.S.C. † | Prefect of Nuova Guinea Olandese, Indonesia |
| unknown | 77.1 | Lorenzo Passerini † | Patriarch of Antiochia {Antioch}, Syria |
| unknown | 70.0 | Raffaele Presutti, O.F.M. Cap. † | Vicar Apostolic of Arabia, Yemen |
| unknown | 70.5 | Gustavo Provveduti † | Abbot of San Martino al Monte Cimino, Italy |
| unknown | 70.8 | Bonaventura Quintarelli † | Bishop of Rieti, Italy |
| unknown | | Giovanni Maria Riesa (Riera), O.P. † | Bishop of Guayaquil, Ecuador |
| unknown | 65.3 | Andrea Sarti † | Bishop of Pistoia-Prato, Italy |
| unknown | | Bruno Schinxe, M.S.C. † | Vicar Apostolic of Marshall Islands, Pacific (Oceania) |
| unknown | 64.2 | Camillo Tiberio † | Bishop of Diano-Teggiano, Italy |
| unknown | 59.0 | John Tohill † | Bishop of Down and Connor, Ireland |
| unknown | 64.4 | Rocco Francesco Vucic † | Bishop of Senj (-Modruš), Croatia |
| unknown | | Domenico Wagenaar, M.H.M. † | Prefect of Kafiristan e Kashmir, Pakistan |
| unknown | 73.5 | Carlo Gustavo Walravens † | Bishop of Tournai {Doornik}, Belgium |
| 29th Century | 72.8 | Longin Żarnowiecki † | Auxiliary Bishop of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine |
| 1 Jan | 69.3 | Henri-Louis-Prosper Bougoin † | Bishop of Périgueux (-Sarlat), France |
| 20 Jan | 75.0 | Thomas Martin Aloysius Burke † | Bishop of Albany, New York, USA |
| 6 Feb | 86.1 | Edward Gilpin Bagshawe, C.O. † | Bishop Emeritus of Nottingham, England, Great Britain |
| 7 Feb | 60.6 | Scipione Tecchi † | Cardinal, Pro-Prefect of the Congregation of Rites |
| 15 Feb | 75.8 | Josef Kahn † | Bishop Emeritus of Gurk, Austria |
| 21 Feb | 78.4 | Edward Likowski † | Archbishop of Gniezno-Poznań, Poland |
| 21 Feb | 54.6 | Gregorio Ignazio Romero † | Auxiliary Bishop of Buenos Aires, Argentina |
| 23 Feb | 56.1 | Pedro Juan Campins y Barceló † | Bishop of Mallorca, Spain |
| 24 Feb | 53.1 | Leonida Mapelli † | Bishop of Borgo San Donnino, Italy |
| 28 Feb | 66.9 | Marie-Jean-Célestin Douais † | Bishop of Beauvais (-Noyon-Senlis), France |
| 5 Mar | 55.6 | Rudolf Hittmair † | Bishop of Linz, Austria |
| 11 Mar | 73.1 | John Joseph Grimes, S. M. † | Bishop of Christchurch, New Zealand |
| 14 Mar | 59.6 | Joseph John Fox † | Bishop Emeritus of Green Bay, Wisconsin, USA |
| 15 Mar | 72.1 | Luigi Finoja † | Bishop Emeritus of Catanzaro, Italy |
| 18 Mar | 74.0 | Francesco Paolo Carrano † | Archbishop of Trani e Barletta (e Nazareth e Bisceglie), Italy |
| 19 Mar | 82.5 | Antonio Agliardi † | Cardinal, Chancellor of the Apostolic Chancery |
| 27 Mar | 69.0 | Jean-Marie-Léon Dizien † | Bishop of Amiens, France |
| 31 Mar | 59.1 | Jacques-Louis Monestès † | Bishop of Dijon, France |
| 9 May | 66.6 | Charles Henry Colton † | Bishop of Buffalo, New York, USA |
| 10 May | 71.6 | Lawrence Scanlan † | Bishop of Salt Lake, Utah, USA |
| 11 May | 69.2 | Camillus Paul Maes † | Bishop of Covington, Kentucky, USA |
| 18 May | 52.4 | António Moutinho † | Bishop of Portalegre, Portugal |
| Jun | 48.2 | Ibrahim Addai-Scher † | Bishop of Seert (Chaldean), Turkey |
| 6 Jun | 56.9 | Jean-Charles Arnal du Curel † | Bishop of Monaco |
| 11 Jun | 46.2 | Bl. Ignatius (Shoukrallah) Maloyan † | Archbishop of Mardin (Armenian), Iraq |
| 15 Jun | 59.8 | Louis Philip Adélard Langevin, O.M.I. † | Archbishop of Saint-Boniface, Manitoba, Canada |
| 6 Jul | 68.6 | John O'Reilly † | Archbishop of Adelaide, Australia |
| 8 Jul | 76.2 | Heinrich Vollmar † | Bishop Emeritus of Germany, Military |
| 10 Jul | 60.7 | James Edward Quigley † | Archbishop of Chicago, Illinois, USA |
| 21 Jul | 51.2 | Frederick Linneborn, C.S.C. † | Bishop of Dacca, Bangladesh |
| Aug | 79.5 | Boghos Bédros (Paul Peter) XII Sabbaghian † | Patriarch Emeritus of Cilicia (Armenian), Lebanon |
| 3 Aug | 49.7 | André-Maurice Bovet † | Bishop of Lausanne et Genève, Switzerland |
| 4 Aug | 74.5 | Marie-Julien Dunand, M.E.P. † | Vicar Apostolic of Northwestern Szechwan {Se-Ciuen Settentrionale-Occidentale}, China |
| 6 Aug | 54.7 | Edward Kozlowski † | Auxiliary Bishop of Milwaukee, Wisconsin, USA |
| 7 Aug | 68.8 | Juan Bautista Castro † | Archbishop of Caracas, Santiago de Venezuela |
| 10 Aug | 62.3 | Isidoro Clemente Gutiérrez, O.P. † | Vicar Apostolic of Amoy, China |
| 14 Aug | 70.2 | Richard A. Sheehan † | Bishop of Waterford and Lismore, Ireland |
| 19 Aug | 74.1 | Eugène-Louis Kleiner, M.E.P. † | Bishop Emeritus of Mysore, India |
| 19 Aug | 80.7 | Serafino Vannutelli † | Cardinal, Prefect of the Congregation of Ceremonies |
| 3 Sep | 83.6 | Kolos Ferenc Vaszary, O.S.B. † | Cardinal, Archbishop Emeritus of Esztergom, Hungary |
| 13 Sep | 64.2 | Augustin-François Baslé, M.E.P. † | Bishop of Mysore, India |
| 14 Sep | 69.9 | François-Théophile-Zotique Racicot † | Auxiliary Bishop of Montréal, Québec, Canada |
| 15 Sep | 62.3 | Benedetto Lorenzelli † | Cardinal, Prefect of the Roman Curia - Other |
| 16 Sep | 73.5 | Adolphe-Casimir David † | Auxiliary Bishop of Montpellier (, Lodève, Béziers, Agde, e Saint-Pons-de-Thomières), France |
| 16 Sep | 77.7 | Joseph Higgins † | Bishop of Ballarat, Australia |
| 18 Sep | 68.1 | Thomas James Conaty † | Bishop of Monterey-Los Angeles, California, USA |
| 26 Sep | 58.8 | Bernard Thomas Edward Clark, O.F.M. Cap. † | Bishop of Port Victoria o Seychelles |
| 11 Nov | 78.6 | John Cuthbert Hedley, O.S.B. † | Bishop of Newport, Wales, Great Britain |
| 26 Nov | 74.8 | Franziskus von Sales Bauer † | Cardinal, Archbishop of Olomouc, Czech Republic |
| 28 Nov | 79.7 | Clovis-Nicolas-Joseph Catteau † | Bishop of Luçon, France |
| 28 Nov | 70.5 | John Stariha † | Bishop Emeritus of Lead, South Dakota, USA |
| 9 Dec | 75.3 | Luís Raimundo da Silva Brito † | Archbishop of Olinda, Brazil |
| 18 Dec | 73.5 | Narcisse Zéphirin Lorrain † | Bishop of Pembroke, Ontario, Canada |
| 20 Dec | 76.3 | Edmond-Frédéric Fuzet † | Archbishop of Rouen, France |