| Date of Death | Deceased Bishops (75) |
| 1957.01.05 | |
| 1957.01.06 | Bishop of Sankt Gallen (Switzerland) ([1938.09.20] 1938.09.26 – 1957.01.06) |
| 1957.01.10 | Metropolitan Archbishop emeritus of Santiago (Cuba) (1916.04.17 – 1925.01.16) |
| 1957.01.13 | Vicar Apostolic of Limón (Costa Rica) (1938.02.10 – 1957.01.13) |
| 1957.01.14 | Bishop of Sacramento (USA) (1929.01.04 – 1957.01.14) |
| 1957.01.27 | |
| 1957.01.28 | Bishop emeritus of Split (Croatia) (1923.06.06 – 1954.05.09) Bishop emeritus of Makarska (Croatia) (1923.06.06 – 1954.05.09) |
| 1957.01.28 | Apostolic Exarch of Istanbul of the Greeks (Turkiye) (1932.06.11 – 1957.01.28) |
| 1957.02.07 | Bishop emeritus of Nicosia (Italy) (1913.05.15 – 1942.07.01) |
| 1957.02.15 | Vicar Apostolic of Fernando Poo (Equatorial Guinea) (1935.06.18 – 1957.02.15) |
| 1957.02.23 | Bishop emeritus of Lafayette in Louisiana (USA) (1918.07.18 – 1956.03.13) |
| 1957.03.05 | Bishop emeritus of Nueva Pamplona (Colombia) (1916.06.04 – 1956.05.29) |
| 1957.03.10 | |
| 1957.03.22 | |
| 1957.03.27 | |
| 1957.03.28 | Titular Bishop of Theudalis (1955.03.25 – 1957.03.28) |
| 1957.04.06 | |
| 1957.04.08 | Cardinal-Priest of S. Maria in Trastevere (1929.10.28 – 1957.04.08) Metropolitan Archbishop of Sevilla (Spain) (1937.09.14 – 1957.04.08) |
| 1957.04.17 | Bishop emeritus of Sansepolcro (Italy) (1911.11.27 – 1953.10.25) |
| 1957.04.17 | |
| 1957.04.22 | Metropolitan Archbishop of Avignon (France) (1928.10.03 – 1957.04.22) |
| 1957.04.25 | |
| 1957.05.02 | |
| 1957.05.05 | Bishop emeritus of Nocera de’ Pagani (Italy) (1936.11.23 – 1951.08.07) |
| 1957.05.09 | |
| 1957.05.12 | |
| 1957.05.17 | |
| 1957.05.21 | |
| 1957.05.25 | Bishop emeritus of Caltanissetta (Italy) (1921.03.18 – 1956.10.02) |
| 1957.05.27 | Bishop emeritus of Yongping 永平 (China) (1946.04.11 – 1948.03.06) |
| 1957.06.04 | |
| 1957.06.08 | Vicar Apostolic emeritus of Taiku 대구 (South Korea) (1938.12.13 – 1942.10.25) |
| 1957.06.09 | Vicar Apostolic emeritus of Dutch Guyana–Suriname (Suriname) (1911.09.05 – 1946.02.08) |
| 1957.06.10 | |
| 1957.06.16 | |
| 1957.06.17 | |
| 1957.06.24 | |
| 1957.07.01 | |
| 1957.07.04 | Archbishop emeritus of Canberra and Goulburn (Australia) (1948.02.05 – 1953.11.16) |
| 1957.07.04 | Vicar Apostolic emeritus of Curaçao (Curaçao) (1948.11.11 – 1956.12.09) |
| 1957.07.06 | Vicar Apostolic emeritus of Fort-Dauphin (Madagascar) (1933.01.08 – 1953) |
| 1957.07.18 | Bishop of Cerignola (Italy) (1946.06.22 – 1957.07.18) Bishop of Ascoli Satriano (Italy) (1946.06.22 – 1957.07.18) |
| 1957.08.19 | Vicar Apostolic emeritus of Mwanza (Tanzania) (1929.03.18 – 1948.06.13) |
| 1957.08.23 | Cardinal-Deacon of S. Giorgio in Velabro (1936.06.18 – 1957.08.23) Librarian of Vatican Apostolic Library (1936.06.18 – 1957.08.23) Archivist of Vatican Secret Archives (1936.06.18 – 1957.08.23) |
| 1957.08.29 | Bishop emeritus of Tournai (Belgium) (1940.01.24 – 1945.07.08) |
| 1957.08.30 | Vicar Apostolic of San Gabriel de la Dolorosa del Marañón (Peru) (1936.06.03 – 1957.08.30) |
| 1957.09.01 | Bishop of Miarinarivo (Madagascar) (1955.09.14 – 1957.09.01) |
| 1957.09.12 | |
| 1957.09.13 | Metropolitan Archbishop emeritus of Dubuque (USA) (1946.11.11 – 1954.12.02) |
| 1957.09.15 | Bishop emeritus of Trapezus of the Armenians (Turkiye) (1911.08.27 – 1928.07.01) |
| 1957.09.17 | Titular Archbishop of Colonia in Armenia (1936.07.24 – 1957.09.17) |
| 1957.09.21 | Bishop emeritus of Tianjin 天津 (China) (1946.04.11 – 1951.06.14) |
| 1957.09.29 | Vicar Apostolic emeritus of Northern Katanga (Congo-Kinshasa) (1935.06.18 – 1949) |
| 1957.10.04 | Vicar Apostolic emeritus of Northern Hunan 湖南北境 (China) (1911.09.18 – 1917.03) |
| 1957.10.08 | Bishop emeritus of Mantova (Italy) (1928.11.16 – 1954.09.08) |
| 1957.10.18 | Auxiliary Bishop of Hildesheim (Germany) (1949.09.10 – 1957.10.18) |
| 1957.10.21 | |
| 1957.10.25 | Bishop of Montpellier (France) (1949.02.24 – 1957.10.25) |
| 1957.10.25 | Bishop emeritus of Satu Mare (Romania) (1930.10.16 – 1939.12.15) Bishop emeritus of Oradea Mare (Romania) (1930.10.16 – 1939.12.15) |
| 1957.10.27 | |
| 1957.10.30 | Bishop of Saïdā of the Maronites (Lebanon) (1919.02.23 – 1957.10.30) |
| 1957.10.31 | Bishop emeritus of Alghero (Italy) (1914.08.05 – 1938.10.08) |
| 1957.11.02 | Patriarchal Vicar of Antioch of the Syriacs (Lebanon) (1933.05.18 – 1957.11.02) |
| 1957.11.07 | Superior General emeritus of Congregation of the Passion (Passionists) (1926 – 1931.03.23) |
| 1957.11.07 | Apostolic Exarch of Greece of the Greeks (Greece) (1932.06.11 – 1957.11.07) |
| 1957.11.20 | Bishop of Lafayette in Indiana (USA) (1944.11.11 – 1957.11.20) |
| 1957.11.27 | Auxiliary Bishop of Ivano-Frankivsk of the Ukrainians (Ukraine) (1929.11.24 – 1957.11.27) |
| 1957.11.27 | Auxiliary Bishop of Kielce (Poland) (1935.12.16 – 1957.11.27) |
| 1957.11.30 | Cardinal-Bishop of Sabina e Poggio Mirteto (1949.03.14 – 1957.11.30) Secretary of Sacred Consistorial Congregation (1948.10.01 – 1957.11.30) |
| 1957.12.04 | |
| 1957.12.07 | Bishop emeritus of Pontremoli (Italy) (1930.02.06 – 1954.09.30) |
| 1957.12.24 | President emeritus of Pontifical Commission for Russia (1926.02.11 – 1934.03.31) |
| 1957.12.25 | Vicar Apostolic of San Jorge (Colombia) (1950.03.12 – 1957.12.25) |
| 1957.12.26 | Bishop of Dunedin (New Zealand) (1920.04.22 – 1957.12.26) |
| 1957.12.27 | Bishop of Oklahoma City–Tulsa (USA) (1948.02.01 – 1957.12.27) |
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