| Date | Age | Bishop | Title |
| unknown | | Martim Afonso de Melo † | Bishop of Lamego, Portugal |
| unknown | 56.0 | Giovanni Vincenzo Consacco † | Bishop of San Marco (Argentano), Italy |
| unknown | 41.0 | Fabrizio Degli Afflitti † | Bishop of Boiano, Italy |
| unknown | 42.0 | Petrus Federici † | Bishop of Vulturara e Montecorvino, Italy |
| unknown | | Pedro Guerrero † | Bishop of Ugento, Italy |
| unknown | | Maciej Konopacki † | Bishop of Chelmno (Culma, Kulm), Poland |
| unknown | | Giovanni Lippomano † | Bishop Emeritus of Poreč (Parenzo), Croatia |
| unknown | | Urbain de Saint-Gelais de Lansac † | Bishop of (Saint-Bernard de) Comminges, France |
| unknown | | Diego Soria, O.P. † | Bishop of Nueva Segovia, Philippines |
| Jan | 52.0 | Leone Fedeli, O.S.B. † | Bishop of Lavello, Italy |
| 10 Jan | | Christoph Andreas von Spaur † | Bishop of Brixen {Bressanone}, Italy |
| 17 Jan | 55.0 | Felipe Marimón † | Bishop of Ampurias e Civita, Italy |
| 19 Jan | | Giovanni Andrea Caligari † | Bishop of Bertinoro, Italy |
| 31 Jan | | Rutilio Benzoni † | Bishop of Recanati e Loreto, Italy |
| 5 Feb | | Roland de Neuville † | Bishop of Saint-Pol-de-Léon, France |
| 13 Mar | 62.2 | Francisco Terrones del Cańo † | Bishop of León, Spain |
| 31 Mar | | Pedro de Castilho † | Bishop Emeritus of Leiria, Portugal |
| 14 Apr | 70.3 | Giovanni Francesco Leone † | Bishop of Telese o Cerreto Sannita, Italy |
| 7 May | 64.3 | Diego Chaves Casas (de Yepes), O.S.H. † | Bishop of Tarazona, Spain |
| 26 May | | Jean Wischer † | Bishop of Ypres (Ieper), Belgium |
| 27 May | | Decio Caracciolo Rosso † | Archbishop of Bari (-Canosa), Italy |
| 13 Jul | | Ipatij Pociej † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 14 Jul | 60.5 | Maschio Ferracuti † | Bishop of Vieste, Italy |
| 18 Jul | 70.4 | Pierre de Villars (II) † | Archbishop Emeritus of Vienne, France |
| 20 Jul | 48.8 | Heinrich Julius von Braunschweig-Lüneburg † | Former Bishop-Elect of Halberstadt, Germany |
| 22 Jul | | Juan de Labrada, O.P. † | Bishop of Cartagena, Colombia |
| 1 Aug | | Marcello Marchesi † | Bishop of Senj, Croatia |
| 9 Aug | 54.6 | Alessandro Borghi † | Bishop Emeritus of Sansepolcro (Borgo San Sepolcro), Italy |
| 10 Aug | | Sallustio Tarugi † | Archbishop of Pisa, Italy |
| 29 Aug | | Tommaso Calvi † | Bishop of Tropea, Italy |
| 1 Sep | | Galeazzo Moroni † | Bishop of Macerata e Tolentino, Italy |
| 3 Sep | 60.7 | Wolfgang von Hausen † | Bishop of Regensburg, Germany |
| 8 Sep | 73.7 | Ludovico Riva (Ripa) † | Bishop of Terni, Italy |
| 8 Oct | 63.8 | Adrian von Riedmatten (I) † | Bishop of Sion {Sitten}, Switzerland |
| 29 Oct | 52.8 | Lope Velasco Valdivieso † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 1 Nov | 61.3 | Flaminio Piatti † | Cardinal, Cardinal-Priest of Santa Maria della Pace |
| 4 Nov | 66.8 | Cristóbal Rodríguez Juárez (Suárez), O.P. † | Bishop of Arequipa, Peru |
| 26 Nov | 65.9 | Guillaume de Péricard † | Bishop of Evreux, France |
| 16 Dec | | Antonio Gallart Traginer † | Bishop of Vic, Spain |
| 22 Dec | | Stefano Spínola, C.R. † | Bishop of Ventimiglia, Italy |