| Date | Age | Bishop | Title |
| unknown | 66.0 | Diego Aduarte, O.P. † | Bishop of Nueva Segovia, Philippines |
| unknown | | Georges Dubovsky † | Bishop of Csanád, Hungary |
| unknown | 50.0 | Luis Jiménez, O. de M. † | Bishop of Ugento, Italy |
| unknown | 66.0 | Giulio Masi † | Bishop of Monopoli, Italy |
| unknown | 63.0 | Gerolamo Mezzamico † | Bishop of Trevico, Italy |
| unknown | | Theodorus Pelleoni, O.F.M. Conv. † | Bishop of Montepeloso, Italy |
| unknown | 55.0 | Bernardino Piccoli † | Bishop of Strongoli, Italy |
| unknown | 64.0 | Girolamo Tantucci † | Bishop of Grosseto, Italy |
| 8 Feb | 46.1 | Arcasio Ricci † | Bishop of Gravina (di Puglia), Italy |
| 10 Feb | 59.1 | Charles Bobba de Montferrat † | Bishop of Saint-Jean-de-Maurienne, France |
| 12 Feb | 48.1 | Henri Boivin de Péricard † | Coadjutor Bishop of Avranches, France |
| 27 Feb | 41.1 | Pierre Habert de Montmort † | Bishop of Cahors, France |
| 29 Feb | | Tommaso Brandolini, O.P. † | Bishop of Minori, Italy |
| 2 Mar | | Louis de Claret † | Bishop of Saint-Papoul, France |
| 6 Mar | 65.2 | Antonio Arrigoni, O.F.M. Obs. † | Bishop of Ripatransone, Italy |
| 25 Mar | 70.2 | Claude du Vergier † | Bishop of Lavaur, France |
| 9 Apr | 52.2 | John Roche † | Bishop of Ferns, Ireland |
| 14 Apr | 62.2 | Tiberio Muti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 3 May | 36.3 | Scipion de Villeneuve-Thorenc † | Bishop of Grasse, France |
| 19 May | | Pedro Cifuentes Loarte † | Bishop of Ávila, Spain |
| Jul | 65.5 | Antonio Lambardi † | Titular Archbishop of Nazareth |
| 13 Jul | 70.5 | Alfonso Mesía de Tovar † | Bishop of Astorga, Spain |
| 15 Jul | 65.5 | Nicola Bellolatto † | Bishop of Bisceglie, Italy |
| 19 Jul | | Melchiorre Pirella † | Bishop of Ales e Terralba, Italy |
| 20 Jul | 74.9 | Francisco Verdugo Cabrera † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 3 Aug | 76.5 | Gonzalo de Salazar, O.S.A. † | Bishop of Yucatán (Mérida), México |
| 4 Aug | 52.5 | Thomas de Grace † | Auxiliary Bishop of Liège, Belgium |
| 4 Aug | 63.5 | Lopo de Sequeira Pereira † | Bishop of Guarda, Portugal |
| 20 Aug | 85.8 | Ferdinand de Rye † | Archbishop of Besançon, France |
| 12 Sep | 51.3 | Giovanni Pietro Volpi † | Bishop of Novara, Italy |
| Oct | 63.7 | Sigismondo Gambacorta, C.R.S.A. † | Bishop of Telese o Cerreto Sannita, Italy |
| 2 Oct | 59.7 | Jorge de Melo † | Bishop of Coimbra, Portugal |
| 15 Oct | | Juan de Falces (de Santisteban y Falces), O.S.H. † | Archbishop of Brindisi, Italy |
| 15 Oct | | Jeronim Jeremija Poczapowski † | Bishop of Lutsk and Ostroh (Ukrainian), Ukraine |
| 2 Nov | 67.3 | Giovanni Benini † | Titular Archbishop of Hadrianopolis in Haemimonto |
| 13 Nov | 51.8 | Bartolomeo Frigerio † | Bishop of Venosa, Italy |
| 23 Nov | 66.2 | Franz Seraph von Dietrichstein † | Cardinal, Archbishop of Olomouc (Olmütz), Czechia |
| 12 Dec | 52.6 | Pasquale Grassi † | Bishop of Chioggia, Italy |
| 21 Dec | 57.9 | Antonio Trejo de Sande Paniagua, O.F.M. † | Bishop of Cartagena (en España) |