| Date | Age | Bishop | Title |
| unknown | 54.3 | Fabiano Abrantowicz, M.I.C. † | Exarch of Harbin [Harbin] (Byzantine), China |
| unknown | | Bartolomeo Bechis, C.M. † | Prefect of Tigrai, Ethiopia |
| unknown | 69.9 | Giuseppe Antonio Ferdinando Bussolari, O.F.M. Cap. † | Archbishop of Modena (e Nonantola), Italy |
| unknown | 77.5 | Nicola Cadi † | Archbishop of Bosra e Hauran (Melkite), Syria |
| unknown | 69.9 | Bernardin Castanié, C.I.M. † | Prefect of Cook Islands, Pacific (Oceania) |
| unknown | 69.1 | Nicolas Charikiopoulos (Harikoupoulos) † | Bishop of Chios (Scio), Greece |
| unknown | 79.7 | Matteo Angelo Filipello † | Bishop of Ivrea, Italy |
| unknown | 77.6 | Thomas P. Gilmartin † | Archbishop of Tuam, Ireland |
| unknown | 63.5 | Pietro Gjura † | Archbishop of Durrës, Albania |
| unknown | 65.3 | Giovanni Francesco Gnidovec, C.M. † | Bishop of Skopje, Macedonia |
| unknown | 71.7 | Paul-Marie-Joseph Julliotte, SS.CC. † | Prefect of Hainan [Hainan], China |
| unknown | 78.2 | Isacco Koudabache † | Archbishop of Urmya {Rezayeh} (Chaldean), Iran |
| unknown | 77.6 | Antonio Laubitz † | Auxiliary Bishop of Gniezno-Poznań, Poland |
| unknown | 74.8 | Giuseppe Maria Leo † | Archbishop of Trani e Barletta (e Nazareth e Bisceglie), Italy |
| unknown | 62.3 | Francis Lisowski † | Bishop of Tarnów, Poland |
| unknown | 76.1 | Giuseppe Lojacono † | Bishop of Ariano, Italy |
| unknown | 47.5 | Bernard Francis Mayer, M.M. † | Prefect of Wuchow [Wuzhou], China |
| unknown | | Romualdo Migliorini, O.S.M. † | Prefect of Swaziland |
| unknown | | Luigi Mohn, M.C.C.I. † | Prefect of Umtata, South Africa |
| unknown | 82.0 | Joseph Aloysius Murphy, S.J. † | Vicar Apostolic Emeritus of British Honduras, Belize |
| unknown | 83.2 | Nicola Piccirilli † | Archbishop of Lanciano (e Ortona), Italy |
| unknown | 67.2 | Luigi Francesco Pierini, O.F.M. † | Archbishop of Sucre, Bolivia |
| unknown | 64.8 | Gastone Antonio Rasneur † | Bishop of Tournai {Doornik}, Belgium |
| unknown | 58.3 | Alberto Romita † | Bishop of Boiano-Campobasso, Italy |
| unknown | 69.0 | Nándor Rott † | Bishop of Veszprém, Hungary |
| unknown | 51.8 | Tomás Antonio Sanmiguel Díaz † | Bishop of San Cristóbal de Venezuela |
| unknown | 52.9 | Gaudenzio Giacinto Stanchi, O.F.M. † | Vicar Apostolic of Changsha [Changsha], China |
| unknown | | Giovanni Starcke, M.S.F. † | Superior of Northern Norway {Norvegia Settentrionale} |
| unknown | 69.7 | Giovanni Stavel † | Auxiliary Bishop of Olomouc, Czech Republic |
| unknown | | Damiano Tcheng † | Prefect of Chaotung [Zhaotong], China |
| unknown | 54.6 | Salvatore van Nuffel, O.S.B. † | Prefect of Northern Transvaal {Transvaal Settentrionale}, South Africa |
| 5 Jan | 72.0 | Bernard O'Kane † | Bishop of Derry, Ireland |
| 10 Jan | 70.1 | Santino Maria da Silva Coutinho † | Archbishop of Maceió, Alagoas, Brazil |
| 20 Jan | 94.1 | Juan Torres Ribas † | Bishop of Menorca, Spain |
| 7 Feb | 57.8 | Bl. Anselmo Polanco y Fonteche, O.S.A. † | Bishop of Teruel (-Albarracín), Spain |
| 10 Feb | 58.6 | Arturo Jara Marquez, S.D.B. † | Vicar Apostolic Emeritus of Magallanes-Islas Malvinas, Chile |
| 10 Feb | 81.7 | Ambrogio Damiano Achille Ratti † | Pope (Roma {Rome}, Italy) |
| 23 Feb | 89.1 | Eugène-Jacques Grellier † | Bishop of Laval, France |
| 3 Mar | 73.7 | Auguste-Maurice Clément † | Bishop of Monaco |
| 3 Mar | 75.0 | Joseph-Lucien Giray † | Bishop Emeritus of Cahors, France |
| 5 Mar | 76.8 | Amando Agostino Bahlmann, O.F.M. † | Prelate of Santarém, Para, Brazil |
| 5 Mar | 57.9 | Filippo Mantini † | Bishop of Cagli e Pergola, Italy |
| 13 Mar | 69.9 | Alban Goodier, S.J. † | Archbishop Emeritus of Bombay, India |
| 20 Mar | 80.4 | Joseph Henry Conroy † | Bishop of Ogdensburg, New York, USA |
| 20 Mar | 63.7 | Bernard Joseph Mahoney † | Bishop of Sioux Falls, South Dakota, USA |
| 1 Apr | 82.4 | Donato Raffaele Sbarretti Tazza † | Cardinal, Secretary of the Congregation of the Holy Office |
| 2 Apr | 68.7 | Vicente Castellanos y Núñez † | Bishop Emeritus of Tulancingo, Hidalgo, México |
| 8 Apr | 43.3 | Louis Perera, O.M.I. † | Bishop-Elect of Chilaw, Sri Lanka |
| 10 Apr | 81.0 | Joseph Damian Schmitt † | Bishop of Fulda, Germany |
| 14 Apr | 62.3 | Josef Mutschlechner † | Vicar Apostolic Emeritus of Brixen {Bressanone}, Italy |
| 18 Apr | 76.1 | José Américo Orzali † | Archbishop of San Juan de Cuyo, Argentina |
| 23 Apr | 76.1 | Domenico Mariani † | Cardinal, President of the Administration of the Patrimony of the Apostolic See |
| 9 May | 66.2 | Henryk Ignacy Przeździecki † | Bishop of Siedlce, Poland |
| 12 May | 82.1 | Isidore-Marie-Victor Douceré, S. M. † | Vicar Apostolic of New Hebrides {Isole Nouve Ebridi}, Vanuatu, Pacific (Oceania) |
| 16 May | 48.1 | Luis Calixto Leiva Charry † | Bishop of Barranquilla, Colombia |
| 16 May | 75.1 | Alexis Lemaître, M. Afr. † | Archbishop of Carthage, Tunisia |
| 18 May | 56.3 | Emile Barthès † | Auxiliary Bishop of Albi (-Castres-Lavaur), France |
| 5 Jun | 50.6 | Firmin Lamy † | Bishop of Langres, France |
| 28 Jun | 66.7 | Andrew Killian † | Archbishop of Adelaide, Australia |
| 6 Jul | 73.5 | Osvaldo Waller, S.M.A. † | Prefect Emeritus of Eastern Nigeria {Nigeria Orientale} |
| 17 Jul | 59.3 | Henri-Jean Houbaut † | Bishop of Bayonne (-Lescar e Oloron), France |
| 20 Jul | 81.0 | Timothy J. Corbett † | Bishop Emeritus of Crookston, Minnesota, USA |
| 20 Jul | 76.9 | Augustin Henninghaus, S.V.D. † | Vicar Apostolic Emeritus of Southern Shantung {Scian-Ton Meridionale}, China |
| 24 Jul | 67.1 | Eduardo José Herberhold, O.F.M. † | Bishop of Ilhéus, Baia, Brazil |
| 25 Jul | 87.6 | Eduard Baron von der Ropp † | Archbishop of Mohilev, Belarus |
| 8 Aug | 78.8 | Isaac-Jesu-Yab Khoudabache (Koudabache) † | Archbishop of Urmya {Rezayeh} (Chaldean), Iran |
| 17 Aug | 74.8 | Henry Lécroart, S.J. † | Vicar Apostolic Emeritus of Sienhsien [Xianxian], China |
| 11 Sep | 63.3 | Pablo Alegría Iriarte, O.A.R. † | Vicar Apostolic of Casanare, Colombia |
| 13 Sep | 72.2 | Angelo Maria Dolci † | Cardinal, Apostolic Nuncio Emeritus to Romania |
| 20 Sep | 83.9 | Louis Joseph Napoléon Paul Bruchési † | Archbishop of Montréal, Québec, Canada |
| 29 Sep | 65.2 | Joseph-François-Marie Julliot † | Bishop Emeritus of Les Gonaïves, Haïti |
| 1 Oct | 69.0 | François David (Daoud) † | Bishop of Amadiyah (Chaldean), Iraq |
| 2 Oct | 67.3 | George William Mundelein † | Cardinal, Archbishop of Chicago, Illinois, USA |
| 2 Oct | 68.2 | Norbert-Georges-Pierre Rousseau † | Bishop of Le Puy-en-Velay, France |
| 2 Oct | 68.8 | Augustus John Schwertner † | Bishop of Wichita, Kansas, USA |
| 7 Oct | 64.8 | Joseph-Jean-Baptiste Hallé † | Bishop of Hearst, Ontario, Canada |
| 8 Oct | 71.4 | Jean Castel † | Bishop of Tulle, France |
| 11 Oct | 70.0 | Joseph Wilfrid Dwyer † | Bishop of Wagga Wagga, Australia |
| 14 Oct | 64.0 | Odilon Fages, O.S.F.S. † | Vicar Apostolic of Orange River, South Africa |
| 25 Oct | 79.2 | Francis Edward Joseph Mostyn † | Archbishop of Cardiff, Wales, Great Britain |
| 1 Nov | 64.8 | René-Pierre Mignen † | Archbishop of Rennes (, Dol, e Saint-Malo), France |
| 5 Nov | 51.7 | Eli-Antoine Durand † | Bishop of Montauban, France |
| 14 Nov | 65.9 | Laurence William Youens † | Bishop of Northampton, England, Great Britain |
| 23 Nov | 69.6 | Auguste Declercq, C.I.C.M. † | Vicar Apostolic of Kasaï Superiore, Congo (Dem. Rep.) |
| 30 Nov | 65.0 | Leopoldo Lara y Torres † | Bishop Emeritus of Tacámbaro, Michoacán, México |
| 4 Dec | | Souleyman Kutchouk Ousta † | Auxiliary Bishop of Babylon {Babilonia} (Chaldean), Iraq |
| 7 Dec | 82.6 | Jean-Pierre-Alexandre Marcou, M.E.P. † | Vicar Apostolic Emeritus of Phát Diêm, Viêt Nam |
| 14 Dec | 62.9 | Rafael Otón Castro Jiménez † | Archbishop of San José de Costa Rica |
| 19 Dec | 70.3 | Emile-Fernand Sauvant, M. Afr. † | Vicar Apostolic Emeritus of Bamako, Mali |