| Date | Age | Bishop | Title |
| unknown | 68.0 | Giovanni Stefano Ajazza † | Bishop of Asti, Italy |
| unknown | 90.0 | Gedeon Brolnicki † | Archbishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus |
| unknown | | Diego de la Calzada † | Auxiliary Bishop Emeritus of Toledo, Spain |
| unknown | | Mario Cossa † | Bishop of Montalcino, Italy |
| unknown | 64.0 | Girolamo Giustiniani, O.P. † | Bishop Emeritus of Chios (Scio), Greece |
| unknown | 54.0 | Lodovico Magio † | Bishop of Lucera, Italy |
| unknown | 69.0 | Fernando Mendoza González † | Bishop of Cuzco, Peru |
| unknown | 59.0 | Vincenzo Querini † | Archbishop of Corfů, Greece |
| Jan | 35.0 | Pierre Dinet † | Coadjutor Bishop-Elect of Mâcon, France |
| 8 Jan | 73.0 | Francisco Sobrino Morillas † | Bishop of Valladolid, Spain |
| 18 Jan | | Stephan von Seiboldsdorf † | Bishop of Freising, Germany |
| 19 Jan | 68.0 | Jacques Turicella, O.F.M. † | Bishop of Marseille, France |
| 14 Feb | 66.0 | Sebastian Breuning † | Auxiliary Bishop of Augsburg, Germany |
| 14 Feb | 73.1 | Juan González de Mendoza, O.S.A. † | Bishop of Popayán, Colombia |
| 14 Feb | 57.8 | Paolo Emilio Sfondrati † | Cardinal, Bishop of Cremona, Italy |
| Mar | 60.1 | Bonaventura Secusio, O.F.M. Obs. † | Bishop of Catania, Italy |
| 7 Mar | | Melchior de Marconnai † | Bishop of Saint-Brieuc, France |
| 13 Mar | | Pierre Aime du Nant de Grilly † | Abbot of Saint-Maurice, Switzerland |
| 21 Mar | 78.2 | Jacques Blaze (Blaes), O.F.M. Obs. † | Bishop of Saint-Omer, France |
| 26 Mar | 75.2 | Coriolano Garzadori † | Bishop Emeritus of Ossero (Osor), Croatia |
| 14 Apr | 75.2 | Giovanni Battista Zuccato † | Bishop Emeritus of Nusco, Italy |
| 24 Apr | 56.3 | Diego de Contreras, O.S.A. † | Archbishop of Santo Domingo, Dominican Republic |
| 5 May | 43.3 | Ramón Ivorra † | Bishop of Perpignan-Elne, France |
| 29 May | 70.4 | Jorge de Quemado (Queimada), O.S.A. † | Auxiliary Bishop of Braga, Portugal |
| Jun | 56.4 | Giuseppe Pisculli, O.F.M. Conv. † | Bishop of Catanzaro, Italy |
| 15 Jun | | Krzysztof Kazimirski † | Bishop of Kyiv (Kijów), Ukraine |
| 10 Aug | 62.6 | Marcantonio Bellini † | Bishop of Bobbio, Italy |
| 19 Aug | 59.9 | Agustín de Carvajal, O.S.A. † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 19 Aug | 54.6 | Vincenzo Periti † | Bishop of Lavello, Italy |
| 22 Aug | 54.6 | Erminio Valenti † | Cardinal, Bishop of Faenza, Italy |
| Sep | | Lucio Fornari † | Bishop of Oria, Italy |
| 1 Sep | 68.6 | Constantino Barradas † | Bishop Emeritus of Săo Salvador da Bahia de Todos os Santos, Brazil |
| 5 Sep | 61.7 | Jacques Davy du Perron † | Cardinal, Archbishop of Sens, France |
| 3 Oct | 60.7 | Paolo Tolosa, C.R. † | Archbishop of Chieti, Italy |
| 7 Oct | | Henri de La Marthonie † | Bishop of Limoges, France |
| 23 Oct | 86.8 | Georg Stobäus von Palmburg † | Bishop of Lavant, Slovenia |
| Nov | 44.8 | Pietro Paolo Miloto † | Bishop of Chioggia, Italy |
| 10 Nov | | Andrés de Santa Maria, O.F.M. Obs. † | Bishop Emeritus of Cochin, India |
| 16 Nov | 59.8 | Ottavio Belmosto (Belmusti) † | Cardinal, Bishop Emeritus of Aleria, France |
| 17 Nov | 50.8 | Gian Alberto Garzoni † | Bishop of Canea (Cydonia, Egée), Greece |
| 17 Nov | | Alfonso Vidal, O.F.M. Obs. † | Bishop of Lipari, Italy |
| 3 Dec | | Stephan Nebelmair † | Auxiliary Bishop of Regensburg, Germany |
| 4 Dec | 72.1 | Dietrich von Fürstenberg † | Bishop of Paderborn, Germany |
| 6 Dec | | Fabio Biondi (Blondus de Montealto) † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 7 Dec | 72.6 | Bernardo de Rojas y Sandoval † | Cardinal, Archbishop of Toledo, Spain |
| 9 Dec | 45.9 | Ehrenfried von Kuenburg † | Bishop of Chiemsee, Germany |
| 22 Dec | 52.9 | Girolamo Pignatelli, C.R. † | Archbishop of Rossano, Italy |