| Date | Age | Bishop | Title |
| unknown | 54.0 | Alexandre-Henri de Chauvigny de Blot † | Bishop of Lombez, France |
| unknown | 58.6 | Louis-François-Alexandre de Jarente de Senas d’Orgeval † | Bishop Emeritus of Orléans, France |
| Jan | 67.2 | Raimondo A. Vecchietti † | Bishop of Colle di Val d’Elsa, Italy |
| 8 Jan | 58.6 | Salvatore Spinelli, O.S.B. † | Archbishop of Salerno, Italy |
| 25 Jan | 80.1 | Tadeusz Teodozy Rostocki, O.S.B.M. † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 28 Jan | 73.4 | José Joaquim Justiniano Mascarenhas Castello Branco † | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 2 Feb | 73.0 | Alessandro Maria Odoardi † | Bishop of Perugia, Italy |
| 20 Feb | 71.2 | Domenico Mancinforte † | Bishop of Faenza, Italy |
| 24 Feb | 84.3 | Jean-Baptiste du Plessis d’Argentré † | Bishop of Sées, France |
| 8 Mar | 84.6 | Juan Domingo González de la Reguera † | Archbishop of Lima, Peru |
| 11 Mar | 65.8 | Edmund Maria Josef Artz von und zu Vasegg † | Auxiliary Bishop of Wien {Vienna}, Austria |
| 22 Mar | 61.4 | Michele Argelati † | Bishop of Terracina, Priverno e Sezze, Italy |
| 29 Mar | 57.4 | Pietro Luigi Rusconi † | Auxiliary Bishop of Cesena, Italy |
| 17 Apr | 62.5 | Mercurio Maria Teresi † | Archbishop of Monreale, Italy |
| 21 Apr | 65.8 | Anton Ferdinand von Rothkirch und Panthen † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 29 Apr | 78.0 | Juan Llano Ponte † | Bishop of Oviedo, Spain |
| 23 May | | Mikolaj Skorodynski † | Bishop of Lviv (Ukrainian), Ukraine |
| 31 May | 78.7 | Matthaeus Franciscus Kertiza † | Bishop of Bosnia, Croatia |
| 17 Jun | 65.5 | Francesco Maria Cioja † | Bishop of Todi, Italy |
| 18 Jun | 69.9 | Kajetan Maria (Ignaz Judas Thaddäus) Reisach, C.R. † | Titular Bishop of Dibon (Dibona) |
| 25 Jun | 71.5 | Mikolaj Duchnowski † | Bishop of Suprasl (Ukrainian), Belarus |
| 5 Jul | 73.7 | Joseph Pierer † | Auxiliary Bishop of Győr (Raab), Hungary |
| 5 Sep | 67.3 | Tomás de Roa y Alarcón † | Bishop of Concepción, Chile |
| 13 Sep | 71.3 | Valentin Philipp Anton Schmidt † | Auxiliary Bishop of Speyer, Germany |
| 28 Sep | 80.8 | Christoph Franz von Buseck † | Bishop of Bamberg, Germany |
| 30 Sep | 76.0 | Jerónimo Gómez de Liñán de la Borda † | Bishop of Cartagena, Colombia |
| 13 Oct | 75.4 | Francisco Isidoro Gutiérrez Vigil † | Bishop of Astorga, Spain |
| 28 Oct | 77.3 | Charles-Auguste Le Quien de La Neufville † | Bishop Emeritus of Acqs (Dax), France |
| 31 Oct | 67.1 | Ignatius Darabanth, O.S.B.M. † | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 5 Nov | 74.2 | Giovanni Andrea Archetti † | Cardinal, Bishop of Ascoli Piceno, Italy |
| 5 Nov | 81.4 | Johann Adam Behr † | Auxiliary Bishop of Bamberg, Germany |
| 5 Nov | 75.8 | Onofrio Maria Gennari † | Bishop of Montemarano, Italy |
| 16 Nov | 80.8 | Jean-Baptiste-Marie Champion de Cicé † | Bishop of Auxerre, France |
| 21 Nov | 70.7 | Victoriano López Gonzalo † | Bishop of Cartagena (en España) |
| 15 Dec | 65.3 | Cayetano Da Annunciação Brandão, T.O.R. † | Archbishop of Braga, Portugal |
| 16 Dec | 75.5 | Johann Nepomuk Augustin von Hornstein zu Hohenstoffen † | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |