| Date | Age | Bishop | Title |
| unknown | | Gaspare Borghi (Burgi) † | Bishop of Penne e Atri, Italy |
| unknown | | Rodrigo Cárdenas, O.P. † | Bishop of Nueva Segovia, Philippines |
| unknown | | Stanisław Czuryło † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| unknown | | Edmund Dempsey, O.P. † | Bishop of Leighlin, Ireland |
| unknown | 43.0 | Louis de Fortia-Montréal † | Bishop of Carpentras, France |
| unknown | 55.0 | Antonio Sarmiento de Luna y Enríquez † | Bishop of Sigüenza, Spain |
| unknown | | Salvatore Mulas Pirella † | Bishop of Alghero, Italy |
| unknown | | Benedetto Rocci, O. Carm. † | Bishop of Nusco, Italy |
| unknown | | Antonio de San Gregorio, O.F.M. † | Bishop-Elect of Nueva Caceres, Philippines |
| 24 Jan | 65.1 | Johann Flugi † | Bishop of Chur, Switzerland |
| 26 Jan | | Diego García de Trasmiera † | Bishop of Zamora, Spain |
| 30 Jan | 59.6 | Dietrich Adolf von der Reck † | Bishop of Paderborn, Germany |
| 10 Feb | | Pierre Nivelle † | Bishop of Luçon, France |
| 11 Feb | | Adam Kos † | Bishop of Chelmno (Culma, Kulm), Poland |
| 9 Mar | 58.7 | Jules Raymond (Giulio Raimondo) Mazarin (Mazzarino) † | Cardinal, Cardinal-Deacon |
| 9 Mar | | Jerzy Karol Zawisza † | Bishop of Vilnius, Lithuania |
| 11 Mar | 64.2 | Gilles Boutault † | Bishop of Evreux, France |
| 25 Mar | 76.2 | John O’Cullenan † | Bishop of Raphoe, Ireland |
| Apr | 51.3 | Agustín Muñoz Sandoval † | Bishop of Cuzco, Peru |
| 4 Apr | | Juan Francisco Arnaldo Isasi † | Bishop of Puerto Rico (Porto Rico) |
| 13 Apr | 68.9 | Bernardo Caballero Paredes † | Bishop of Oviedo, Spain |
| 15 May | 72.4 | Jacques Raoul de La Guibourgère † | Bishop of La Rochelle, France |
| 24 May | 47.7 | Simeone Difnico † | Bishop of Feltre, Italy |
| Jul | 84.5 | Luca Cellesi † | Bishop of Martirano (Martoranum), Italy |
| 8 Jul | 57.5 | Cristofor Segni † | Titular Archbishop of Thessalonica |
| 9 Jul | 79.9 | Francesco Paolucci † | Cardinal, Prefect of the Congregation of the Council |
| 16 Jul | 66.5 | Alvise Marcello, C.R.S. † | Bishop of Pula (Pola), Croatia |
| Aug | 56.6 | Silvestro D’Afflitto, C.R. † | Bishop of Lucera, Italy |
| 22 Aug | | Francisco Díaz de Cabrera † | Bishop of Salamanca, Spain |
| 27 Aug | | Francis Kirwan † | Bishop of Killala, Ireland |
| Sep | | Pietro Paolo Pinto, O.F.M. † | Bishop of Fondi (Fundi), Italy |
| 2 Sep | 43.7 | William Ballantine † | Prefect of Scotland, Great Britain |
| 13 Sep | 69.1 | Johann Balthasar Liesch von Hornau † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 16 Sep | 53.7 | Jacobus de la Torre † | Vicar Apostolic of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 16 Sep | | Jacobus de Turre (Turrius) † | Coadjutor Vicar Apostolic of Batavia (Holland Mission), Netherlands |
| 17 Sep | | Giovanni Battista Barducci † | Bishop of San Miniato, Italy |
| 19 Sep | 64.7 | Dionisio de Cimbrón, O. Cist. † | Bishop of Concepción, Chile |
| Oct | 65.8 | Juan Vallejo † | Bishop of Astorga, Spain |
| 3 Oct | | Girolamo Codebò † | Bishop of Reggio Emilia, Italy |
| 16 Oct | 62.8 | Amico Panici † | Bishop of Recanati e Loreto, Italy |
| 6 Nov | | Alessandro Piccolomini † | Bishop of Chiusi, Italy |
| 9 Nov | | Giacomo Giordano † | Bishop of Lacedonia, Italy |
| 10 Nov | 67.6 | Bernardino Spada † | Cardinal, Bishop of Palestrina, Italy |
| Dec | 74.9 | Savino Florian, O.F.M. † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
| 1 Dec | 68.8 | Franz Wilhelm von Wartenberg † | Cardinal, Bishop of Regensburg, Germany |