| Date | Age | Bishop | Title |
| unknown | 53.1 | Francesco Saverio Saggese † | Bishop of Montepeloso, Italy |
| 16 Jan | 84.5 | Georges-Gaspard-Alexis de Plan des Augiers † | Bishop of Die, France |
| 11 Feb | 71.8 | Agustín Vázquez Varela, O. Cist. † | Bishop of Solsona, Spain |
| 13 Feb | 68.3 | Gabino Valladares Mejía, O. Carm. † | Bishop of Barcelona, Spain |
| 19 Feb | 66.4 | Etienne-Charles de Loménie de Brienne † | Cardinal, Archbishop of Sens, France |
| 9 Mar | 67.2 | Franz Joseph Sigismund von Roggenbach † | Bishop of Basel, Switzerland |
| 13 Mar | 70.7 | Miguel António Barreto de Meneses † | Bishop Emeritus of Miranda (do Douro), Portugal |
| 13 Mar | 66.5 | Johann Baptist Joseph Gobel † | Auxiliary Bishop Emeritus of Basel, Switzerland |
| 17 Apr | 67.4 | Andrés José Barco Espinosa † | Bishop of Salamanca, Spain |
| 9 May | 56.1 | Józef Kazimierz Kossakowski † | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 10 May | 30.8 | Pierre-François-Martial de Loménie † | Coadjutor Archbishop of Sens, France |
| 20 May | 53.5 | Charles-François Bailly de Messein † | Coadjutor Bishop of Québec, Canada |
| 26 May | 77.8 | Wilhelm von Alhaus, O.S.C. † | Auxiliary Bishop of Münster, Germany |
| Jun | 74.3 | Gaetano Maria Capece, C.R. † | Bishop of Pozzuoli, Italy |
| 1 Jun | 59.1 | Johann Leopold von Hay † | Bishop of Hradec Králové, Czech Republic |
| 4 Jun | 64.9 | José Fernández Díaz de la Madrid, O.F.M. † | Bishop of Quito, Ecuador |
| 13 Jun | 61.4 | Filippo Lancellotti † | Cardinal, Cardinal-Deacon |
| 25 Jun | 79.4 | Jean-Olivier Briand † | Bishop Emeritus of Québec, Canada |
| 28 Jun | 66.9 | Ignacy Jakub Massalski † | Bishop of Vilnius, Lithuania |
| Jul | 63.1 | Fernando Cardiñanos, O.F.M. † | Bishop of Comayagua, Honduras |
| 7 Jul | 69.9 | Lothar Breidbach zu Bürresheim, O.S.B. † | Auxiliary Bishop of Fulda, Germany |
| 25 Jul | 67.3 | Charles-François-SIméon de Saint-Simon de Vermandois de Rouvroy de Sandricourt † | Bishop of Agde, France |
| 5 Aug | 66.6 | Gregorio Antonio Maria Salviati † | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 12 Aug | 57.8 | Michal Jerzy Poniatowski † | Archbishop of Gniezno, Poland |
| 14 Aug | 70.6 | Anne-François-Victor Le Tonnelier de Breteuil † | Bishop of Montauban, France |
| 15 Aug | 85.0 | François Mattei † | Patriarch of Alexandria {Alessandria} |
| 19 Aug | 60.2 | José Joaquín Granados y Gálvez, O.F.M. † | Bishop of Durango, México |
| 2 Sep | 89.2 | Jean Baptiste D’Orliè De Saint Innocent, C.R.S.A. † | Bishop of Pinerolo, Italy |
| 14 Sep | 55.9 | Johann Joseph Schüller von Ehrenthal † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 17 Sep | 71.8 | Benoit-Antoine Doria † | Bishop of Ajaccio, France |
| 15 Oct | 64.3 | Giovanni Battista Brancaccio † | Bishop of Ostuni, Italy |
| 25 Oct | 56.3 | Theodor von Brabeck, O.S.B. † | Bishop-Elect of Corvey, Germany |
| 25 Oct | | Hugh MacMullan † | Bishop of Down and Connor, Ireland |
| 26 Oct | 64.1 | Felix Willem Antonius Brenart † | Bishop of Brugge {Bruges}, Belgium |
| 26 Oct | 73.7 | Joannes Maria Antonius dall’Ostia † | Bishop of Arbe (Rab), Croatia |
| 28 Oct | 68.9 | Giovanni Benedetto Maria Ciuran (Civran) † | Bishop of Chioggia, Italy |
| 2 Nov | 79.4 | François-Joachim de Pierres de Bernis † | Cardinal, Archbishop of Albi, France |
| 6 Nov | 68.6 | Roque Martín Merino † | Bishop of Teruel, Spain |
| 10 Nov | 58.7 | Philippus Antonius Buffa, O.F.M. Conv. † | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 20 Nov | 59.0 | Cándido Manuel de Torrijos Riguerra, O.P. † | Bishop of Mérida, Venezuela |
| 2 Dec | | Athanase IV Jaouhar (Jawhar) † | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria |
| 2 Dec | 65.5 | Antonius Joannes Josephus Lucovich † | Bishop of Novigrad (Cittanova), Croatia |
| 6 Dec | | Stephanus Autandil † | Titular Archbishop of Tiflis |
| 6 Dec | 61.1 | Giuseppe Maria Beneventi, O.F.M. Conv. † | Bishop of Muro Lucano, Italy |
| 10 Dec | 71.3 | Esteban Lorenzo de Tristán y Esmenota † | Bishop of Guadalajara, Jalisco, México |
| 22 Dec | 65.9 | Guillaume-Louis du Tillet † | Bishop of Orange, France |
| 26 Dec | 68.7 | Angelo Maria Zuccari † | Bishop of Capaccio, Italy |
| 27 Dec | 54.2 | Alfonso Marsili † | Archbishop of Siena, Italy |