| Date | Age | Bishop | Title |
| unknown | 71.2 | Giovanni Battista Conventati, C.O. † | Bishop Emeritus of Terracina, Priverno e Sezze, Italy |
| unknown | 48.8 | Josephus Augustinus Czarnecki † | Titular Bishop of Domitiopolis |
| unknown | | Olivier-Gabriel de Lubières (Nubières) du Bouchet † | Bishop of (Saint-Bernard de) Comminges, France |
| unknown | 69.8 | Carlo Maielli † | Titular Archbishop of Hemesa |
| unknown | 52.0 | Gregorius Sorger † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 17 Jan | 71.6 | Giorgio Spínola † | Cardinal, Cardinal-Bishop of Palestrina |
| 18 Jan | 77.8 | François-Hyacinthe de Ploeuc de Timeur † | Bishop of Quimper, France |
| 29 Jan | 55.4 | Johann Franz Anton von Sirgenstein † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| Feb | 74.5 | Fabio Mancinforte † | Bishop Emeritus of Gubbio, Italy |
| 16 Feb | 79.1 | Jean Vivant † | Auxiliary Bishop of Strasbourg, France |
| 18 Feb | 76.3 | Augusto Antonio Zacco † | Bishop of Treviso, Italy |
| 23 Feb | 75.6 | Jacinto Arana Cuesta † | Bishop of Zamora, Spain |
| Mar | 70.0 | Antonio Pacecco, O.F.M. † | Bishop of Bisceglie, Italy |
| 1 Mar | 70.4 | Giovanni Francesco Maria Tenderini † | Bishop of Civita Castellana e Orte, Italy |
| 5 Mar | 76.4 | Giovanni Todone † | Bishop of Asti, Italy |
| 11 Mar | 44.6 | Alberico Simonetta † | Bishop of Como, Italy |
| 21 Mar | 78.2 | Joseph-Pierre de Castellane † | Bishop of Fréjus, France |
| 21 Mar | 76.2 | Joseph de Révol † | Bishop Emeritus of Oloron (Oloron-Sainte-Marie), France |
| 26 Mar | 63.7 | Cristoforo Palmieri † | Bishop of Sovana (Soana), Italy |
| Apr | | Peter Archdeacon, O.F.M. † | Bishop of Killala, Ireland |
| 28 Apr | | Juan Francisco Antonio de Escandón, C.R. † | Archbishop of Lima, Peru |
| May | | John O’Hart † | Bishop of Achonry, Ireland |
| May | 57.0 | Giuseppe Isidoro Persico † | Bishop of Isernia, Italy |
| 4 May | 64.1 | Domenico Potenza † | Bishop of Montepeloso, Italy |
| 10 May | 73.2 | Carlos Alamán Ferrer † | Bishop of Barbastro, Spain |
| 10 May | 55.0 | José Esteban Noriega, O. Praem. † | Bishop of Solsona, Spain |
| 11 May | 85.4 | Benito Madueño y Ramos † | Auxiliary Bishop of Toledo, Spain |
| 4 Jun | 81.4 | Richard Piers † | Bishop Emeritus of Waterford and Lismore, Ireland |
| 21 Jun | 79.3 | Antoine de Charpin de Genetines † | Bishop Emeritus of Limoges, France |
| 6 Jul | | Emmanuel de Jesus-Maria-Joseph, O.F.M. † | Bishop of Nanking [Nanjing], China |
| 8 Jul | 73.7 | Carlo Colonna † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 18 Jul | 69.2 | Gennaro Scalea † | Bishop of San Severo, Italy |
| 23 Jul | | Peter Mulligan, O.S.A. † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 2 Aug | 71.6 | Carolus Ludovicus Hugo, O. Praem. † | Titular Bishop of Ptolemais in Phoenicia |
| 4 Aug | 74.7 | Réné-François Beauvau de Rivau † | Archbishop of Narbonne, France |
| 4 Aug | 73.3 | Jaime de Mimbela, O.P. † | Bishop of Trujillo, Peru |
| 18 Aug | 82.5 | Juan Álvaro Cienfuegos Villazón, S.J. † | Cardinal, Archbishop Emeritus of Monreale, Italy |
| Sep | 65.2 | Pietro Carlo Benedetti † | Bishop of Spoleto, Italy |
| 4 Sep | | Cayetano Benítez de Lugo, O.P. † | Bishop of Zamora, Spain |
| 5 Sep | 64.2 | Benjamin de L’Isle du Gast † | Bishop of Limoges, France |
| 25 Sep | 82.3 | Vincent-François des Maretz † | Bishop of Saint-Malo, France |
| 27 Sep | 58.7 | Adalbertus von Falkenstein, O.S.B. † | Bishop of Csanád, Hungary |
| 6 Nov | 60.3 | Lucas Sartorius Delmestri von Schönberg † | Bishop of Trieste, Italy |
| 14 Nov | 56.5 | Juan de Galabis, O. Praem. † | Archbishop of Santafé en Nueva Granada, Colombia |
| Dec | | John Armstrong † | Bishop of Down and Connor, Ireland |
| Dec | 51.2 | Joannes Antonius Foscarini † | Archbishop of Corfù, Greece |
| 10 Dec | 60.6 | Jozafat Karp † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 16 Dec | 34.7 | Joannes Ernestus von Harrach † | Bishop of Nitra, Slovakia |
| 26 Dec | 46.8 | Alexander Działyński † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |