| Date | Age | Bishop | Title |
| unknown | 61.0 | Giovanni Battista Arnaldi † | Archbishop of Spoleto, Italy |
| unknown | 61.9 | Gaetano Carletti † | Bishop of Rieti, Italy |
| unknown | 65.8 | Giovanni-Benedetto Folicaldi † | Bishop of Faenza, Italy |
| unknown | 71.7 | Francisco de Paul García Peláez † | Archbishop of Guatemala |
| unknown | | John Michael Marzewski † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| unknown | 68.4 | Antonio Novasconi † | Bishop of Cremona, Italy |
| unknown | 72.1 | Cesare Agostino Sajeva † | Bishop of Piazza Armerina, Italy |
| 13 Jan | 69.1 | Antonio Maria Cagiano de Azevedo † | Cardinal, Prefect Emeritus of the Congregation of the Council |
| 17 Jan | 79.3 | Clément Villecourt † | Cardinal, Bishop Emeritus of La Rochelle (-Saintes), France |
| 18 Jan | 65.2 | Giuseppe Singlau † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 10 Mar | 38.2 | Luigi Ambrosi † | Prefect of Hong Kong [Xianggang], China |
| 13 Mar | | József Lonovics † | Archbishop of Kalocsa, Hungary |
| 20 Mar | 58.6 | Fernando de la Puente y Primo de Rivera † | Cardinal, Archbishop of Burgos, Spain |
| 11 Apr | 73.6 | Jean-Aimé de Levezou de Vezins † | Bishop of Agen, France |
| 12 Apr | 52.2 | Ottokar Maria von Attems † | Bishop of Seckau, Austria |
| 16 Apr | 70.2 | John Timon, C.M. † | Bishop of Buffalo, New York, USA |
| 3 May | 56.0 | Leopold Pelldram † | Bishop of Trier, Germany |
| 11 May | 46.8 | Peter Joseph Lavialle † | Bishop of Louisville, Kentucky, USA |
| 25 May | 83.9 | Jacopo De’ Foretti † | Bishop of Chioggia, Italy |
| Jun | 67.5 | Juan Calienes, O.F.M. † | Bishop of Arequipa, Peru |
| 20 Jun | 48.2 | José María de Jesús Yerovi Pintado, O.F.M. † | Coadjutor Archbishop of Quito, Ecuador |
| 21 Jun | 47.5 | John Kilduff † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 24 Jun | 74.9 | Ignác Fábry † | Bishop of Košice, Slovakia |
| 15 Jul | 61.4 | Joseph-Isidore Godelle, M.E.P. † | Vicar Apostolic of Pondicherry, India |
| 1 Aug | 52.0 | Annetto Casolani † | Vicar Apostolic of Central Africa {Africa Centrale}, Sudan |
| 7 Aug | 77.5 | Benedetto D’Acquisto † | Archbishop of Monreale, Italy |
| 11 Aug | 62.1 | Lodovico Altieri † | Cardinal, Prefect of the Roman Curia - Other |
| 14 Aug | | Georges-Pierre de Natali † | Bishop of Diarbekir (Amida) (Chaldean), Turkey |
| 16 Aug | 84.4 | Joseph Ambrosius Geritz † | Bishop of Warmia (Ermland), Poland |
| 25 Aug | 79.8 | Pierre-Flavien Turgeon † | Archbishop of Québec, Canada |
| 7 Sep | 73.6 | Alexandru Şterca Şuluţiu de Kerpenyes † | Archbishop of Făgăraş şi Alba Iulia (Romanian), Romania |
| 16 Sep | 37.5 | Vicente Ferrer Carreras, O.P. † | Coadjutor Vicar Apostolic of Fo-Kien, China |
| 30 Sep | 54.5 | Fedele Bufarini † | Bishop Emeritus of Comacchio, Italy |
| 22 Oct | 72.9 | José María Riofrío y Valdivieso † | Archbishop of Quito, Ecuador |
| 27 Oct | 73.3 | Paolo Giovanni Bertolozzi † | Bishop of Montalcino, Italy |
| 7 Nov | 78.9 | Roberto Giovanni F. Roberti † | Cardinal, Priest of the Roman Curia - Other |
| 10 Nov | 62.2 | Vincenzo Cima † | Auxiliary Bishop of Split-Makarska (Spalato-Macarska), Croatia |
| 2 Dec | 72.1 | Giuseppe Bofondi † | Cardinal, Cardinal-Deacon of S. Cesareo in Palatio |
| 4 Dec | 75.1 | Engelbert Sterckx † | Cardinal, Archbishop of Mechelen, Belgium |
| 5 Dec | 41.9 | José María Covarrubias y Mejía † | Bishop of Antequera, Oaxaca, México |
| 19 Dec | 85.0 | Giuseppe Ugolini † | Cardinal, Priest of the Roman Curia - Other |
| 28 Dec | 59.0 | M. Le Helloco † | Prefect Emeritus of Iles Saint-Pierre et Miquelon |