| Date | Age | Bishop | Title |
| unknown | | Giovanni Battista Chiappe † | Bishop of Nocera Umbra, Italy |
| 12 Jan | 66.6 | Johann Philipp Reichsgraf von Waldendorff † | Archbishop of Trier, Germany |
| 6 Feb | 85.1 | Jean-Baptiste de Champflour † | Bishop of Mirepoix, France |
| 1 Mar | 64.2 | Teodor Kazimierz Czartoryski † | Bishop of Poznań, Poland |
| 5 Mar | 77.8 | João da Madre de Deus Seixas da Fonseca Borges, O.S.B. † | Titular Bishop of Areopolis |
| 7 Apr | | Miguel Cilieza y Velasco † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 23 Apr | | Nicola Sanchez de Luna † | Bishop of Nola, Italy |
| 7 Jun | 55.2 | José Patricio de la Cuesta Velarde † | Bishop of Sigüenza, Spain |
| 29 Jun | 67.5 | Enrichetto Virginio (Raffale Francesco) Natta, O.P. † | Cardinal, Bishop of Alba (Pompea), Italy |
| 5 Aug | 72.8 | Francisco Borrull Ramón † | Bishop of Tortosa, Spain |
| 20 Aug | 69.6 | Joseph Ignaz Philipp Landgraf von Hessen-Darmstadt † | Bishop of Augsburg, Germany |
| 15 Sep | 93.7 | Juan Manuel Jeronimo de Romaní y Carrillo † | Bishop of Cuzco, Peru |
| 8 Dec | 48.4 | Francisco Antonio de la Riva Mazo † | Archbishop of Santafé en Nueva Granada, Colombia |
| 21 Dec | 72.0 | Pedro Zamorana Romezal † | Bishop of Durango, Durango, México |
| 30 Dec | 74.1 | Pedro Agustín Morell de Santa Cruz y Lora † | Bishop of Santiago de Cuba |