| Date | Age | Bishop | Title |
| unknown | 74.0 | Vincentius Cavaselice † | Bishop of Carinola (Calina), Italy |
| unknown | | Jan Karol Czolański † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| unknown | 53.0 | Gennaro De Andrea † | Bishop of Mottola (Motula), Italy |
| unknown | | Francisco de la Trinidad Arrieta, O.P. † | Bishop of Santa Marta, Colombia |
| unknown | | Henri de Lorraine-Guise † | Archbishop Emeritus of Reims, France |
| unknown | | Biagio Mazzella, O.P. † | Bishop of Sant’Agata de’ Goti, Italy |
| unknown | | Cipriano Medina, O.P. † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| unknown | 61.0 | Carlo Filippo Mei, B. † | Bishop of Bisignano, Italy |
| unknown | | Juan Pastor, O.M. † | Bishop of Crotone (Cotrone), Italy |
| unknown | 60.0 | Giovanni Battista Penna, O.S.A. † | Bishop of Bisceglie, Italy |
| unknown | 58.0 | Vincentius Saporiti † | Bishop of Nebbio, France |
| unknown | 77.0 | Prospero Spínola † | Bishop of Luni e Sarzana, Italy |
| unknown | 78.0 | Filippo Visconti, O.S.A. † | Bishop of Catanzaro, Italy |
| unknown | 57.0 | Gabriel Vázquez Saavedra y Rojas † | Bishop of Coria, Spain |
| 26 Jan | 80.2 | Carlo Maranta † | Bishop of Tropea, Italy |
| 27 Jan | 14.5 | Karl Joseph von Österreich † | Bishop-Elect of Passau, Germany |
| 2 Feb | 71.2 | Johannes Markus von Aldringen † | Bishop of Seckau, Austria |
| 13 Feb | | Donato Pascasio, O.S.B. † | Bishop of Trevico, Italy |
| 21 Feb | | Fernando Andrade Castro † | Bishop of Jaén, Spain |
| 9 Mar | 64.2 | Giovanni Battista Barsotti † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 15 Mar | | Louis d’Estaing † | Bishop of Clermont, France |
| Apr | 69.1 | Pedro Carrillo y Acuña † | Archbishop of Santiago de Compostela, Spain |
| 3 Apr | 60.0 | Otto Friedrich von Buchheim (Puchheim) † | Bishop of Ljubljana, Slovenia |
| 7 Apr | | Giacomo Carafa † | Archbishop of Rossano, Italy |
| 14 Apr | | Raphaël de Bologne † | Bishop of Digne, France |
| 17 Apr | | Franciscus Suarez, O. Carm. † | Bishop of Memphis, Egypt |
| 20 Apr | 53.3 | Jacques Montrouge † | Bishop of Saint-Flour, France |
| 3 May | 53.5 | Ludwik Stempkowski † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 30 Jun | 66.5 | Louis Doni d’Attichy, O.M. † | Bishop of Autun, France |
| 8 Jul | | Giovanni Pellejo, O.F.M. Conv. † | Bishop of Grosseto, Italy |
| 13 Jul | | Diego de Tejada y la Guardia † | Archbishop of Burgos, Spain |
| Aug | 67.6 | Franciscus Manola † | Bishop of Korčula (Curzola, Cursola), Croatia |
| 8 Aug | 71.9 | Francesco Maria Spinola, C.R. † | Bishop of Savona, Italy |
| 16 Aug | | Ascanio de Gasperis † | Bishop of Marsi, Italy |
| 28 Aug | | Lorenzo de Sotomayor, O.S. † | Bishop of Zamora, Spain |
| 10 Sep | 85.7 | Giovanni Battista Scanaroli (Scannaroli) † | Titular Bishop of Sidon |
| 25 Sep | | Francesco Perotti † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 10 Oct | 43.8 | Rodolfo Dulcino † | Bishop of Squillace, Italy |
| Nov | 68.8 | Jerónimo Salas Malo de Esplugas † | Bishop of Albarracin, Spain |
| Dec | | Anselmo Dandini † | Bishop of Cervia, Italy |
| Dec | 62.9 | Francesco Gisulfo e Osorio † | Bishop of Agrigento (Girgenti), Italy |
| 7 Dec | 77.9 | Tommaso Carafa † | Bishop of Capaccio, Italy |