| Date of Death | Deceased Bishops (70) |
| 1948.01.09 | Bishop of Châlons (France) (1912.12.20 – 1948.01.09) Archbishop ad personam (1947.05.16 – 1948.01.09) |
| 1948.01.14 | Titular Bishop of Sarepta (1937.09.04 – 1948.01.14) |
| 1948.02.01 | Bishop of Oklahoma City–Tulsa (USA) (1930.11.14 – 1948.02.01) |
| 1948.02.09 | Vicar Apostolic emeritus of Diégo-Suarez (Madagascar) (1914.07.25 – 1946.04) |
| 1948.02.14 | Metropolitan Archbishop of Freiburg im Breisgau (Germany) (1932.05.21 – 1948.02.14) |
| 1948.02.16 | Cardinal-Bishop of Ostia (1930.07.09 – 1948.02.16) Cardinal-Bishop of Albano (1915.12.06 – 1948.02.16) Prefect of Sacred Congregation of Ceremonies (1930.07.14 – 1948.02.16) |
| 1948.02.26 | Metropolitan Archbishop of Santiago (Cuba) (1925.03.30 – 1948.02.26) |
| 1948.03.06 | Bishop of Chiavari (Italy) (1917.11.03 – 1948.03.06) Archbishop ad personam (1942.11.21 – 1948.03.06) |
| 1948.03.10 | Vicar Apostolic of Curaçao (Curaçao) (1931.11.13 – 1948.03.10) |
| 1948.03.11 | |
| 1948.03.11 | |
| 1948.03.11 | Bishop of Rapid City (USA) (1930.08.01 – 1948.03.11) |
| 1948.03.15 | Metropolitan Archbishop of Santiago de Compostela (Spain) (1935.08.13 – 1948.03.15) |
| 1948.03.29 | Bishop-Prelate of Beatissima Vergine Maria del Santissimo Rosario (Italy) (1927.12.19 – 1948.03.29) |
| 1948.04.03 | |
| 1948.04.05 | |
| 1948.04.05 | Auxiliary Bishop of Québec (Canada) (1927.06.23 – 1948.04.05) |
| 1948.04.06 | |
| 1948.04.19 | Vicar Apostolic emeritus of Northern Honan 河南北境 (China) (1921.02.23 – 1929.05.07) |
| 1948.05.02 | Vicar Apostolic emeritus of Tananarive (Madagascar) (1928.02.15 – 1947.04.22) |
| 1948.05.02 | Bishop emeritus of Datong 大同 (China) (1946.04.11 – 1947.11.20) |
| 1948.05.05 | |
| 1948.05.11 | |
| 1948.05.13 | Apostolic Exarch of United States of America of the Ruthenians (USA) (1924.05.20 – 1948.05.13) |
| 1948.05.20 | |
| 1948.05.27 | Bishop of Saint-Claude (France) (1926.03.12 – 1948.05.27) Archbishop ad personam (1946.06.06 – 1948.05.27) |
| 1948.05.30 | |
| 1948.06.02 | Vicar Apostolic of Urubamba y Madre de Dios (Peru) (1946.07.14 – 1948.06.02) |
| 1948.06.12 | |
| 1948.06.15 | Metropolitan Archbishop emeritus of Pondicherry (India) (1909.05.11 – 1929.08.16) |
| 1948.07.01 | Archbishop of Petra and Philadelphia of the Greek-Melkites (Jordan) ([1932.05.02] 1933.03.13 – 1948.07.01) |
| 1948.07.06 | Titular Archbishop of Apamea in Syria (1946.05.31 – 1948.07.06) Apostolic Nuncio to Peru (1946.05.31 – 1948.07.06) |
| 1948.07.07 | |
| 1948.07.10 | Auxiliary Bishop of Le Mans (France) (1939.06.10 – 1948.07.10) |
| 1948.07.20 | |
| 1948.07.30 | |
| 1948.08.04 | Cardinal-Bishop of Sabina e Poggio Mirteto (1939.12.11 – 1948.08.04) |
| 1948.08.05 | Bishop of Springfield in Illinois (USA) (1923.11.10 – 1948.08.05) |
| 1948.08.08 | |
| 1948.08.25 | Assessor of Sacred Congregation for the Oriental Churches (1941 – 1948.08.25) |
| 1948.08.25 | |
| 1948.08.27 | Titular Archbishop of Tyana (1927.05.24 – 1948.08.27) Apostolic Nuncio to Ireland (1929.11.27 – 1948.08.27) |
| 1948.08.28 | Bishop emeritus of São Tomé de Meliapor (India) (1933.12.04 – 1937.04.10) |
| 1948.08.29 | |
| 1948.09.08 | Archbishop-Bishop emeritus of Yokohama 横浜 (Japan) (1937.11.09 – 1940.09.18) |
| 1948.09.10 | Bishop of Shanghai 上海 (China) (1946.04.11 – 1948.09.10) |
| 1948.09.12 | Bishop emeritus of Litoměřice (Czechia) (1931.10.22 – 1947.03.10) |
| 1948.09.16 | Cardinal-Priest of Ss. Vitale, Valeria, Gervasio e Protasio (1946.02.22 – 1948.09.16) Metropolitan Archbishop of Tarragona (Spain) (1944.03.29 – 1948.09.16) |
| 1948.09.17 | Cardinal-Priest of S. Prassede (1930.07.03 – 1948.09.17) Bishop emeritus of Volterra (Italy) (1920.04.22 – 1923.06.07) Superior General of Congregation of the Missionaries of Saint Charles Borromeo (Scalabrinians) (1930 – 1948.09.17) Secretary of Sacred Consistorial Congregation (1930.07.04 – 1948.09.17) |
| 1948.09.20 | Bishop of Sioux City (USA) (1920.03.08 – 1948.09.20) |
| 1948.09.21 | |
| 1948.09.26 | Vicar Apostolic emeritus of Mogadishu (Somalia) (1927.12.22 – 1930.08) |
| 1948.09.30 | Bishop emeritus of Amazonas (Brazil) (1925.05.01 – 1941.03.22) |
| 1948.10.12 | Vicar Apostolic emeritus of Gold Coast (Ghana) (1925.02.13 – 1932.11.14) |
| 1948.10.17 | Metropolitan Archbishop emeritus of Dubuque (USA) (1930.01.17 – 1946.11.11) |
| 1948.10.22 | Cardinal-Priest of S. Maria della Pace (1927.12.22 – 1948.10.22) Metropolitan Archbishop of Warszawa (Poland) (1946.06.13 – 1948.10.22) Metropolitan Archbishop of Gniezno (Poland) (1926.06.24 – 1948.10.22) |
| 1948.10.23 | Auxiliary Bishop of Venezia (Italy) (1929.05.31 – 1948.10.23) |
| 1948.10.27 | Bishop of Edmundston (Canada) (1945.05.31 – 1948.10.27) |
| 1948.10.28 | |
| 1948.10.31 | |
| 1948.11.04 | Vicar Apostolic emeritus of Kenya (Kenya) (1909.07.15 – 1925.12) Superior General emeritus of Consolata Missionaries (1926.02.16 – 1929.01.11) |
| 1948.11.27 | Vicar Apostolic of Bùi Chu (Vietnam) (1936.06.17 – 1948.11.27) |
| 1948.12.16 | |
| 1948.12.20 | Bishop of Chengdu 成都 (China) (1946.04.11 – 1948.12.20) |
| 1948.12.22 | Bishop of Nitra (Slovakia) (1920.11.13 – 1948.12.22) Archbishop ad personam (1944.05.11 – 1948.12.22) |
| 1948.12.27 | Vicar Apostolic of Marruecos (Morocco) (1926.07.17 – 1948.12.27) |
| 1948.12.27 | |
| 1948.12.28 | Vicar Apostolic emeritus of Kimberley in Western Australia (Australia) (1922.12.01 – 1928) |
| 1948.12.28 | |
| 1948.12.31 | Vicar Apostolic emeritus of Northern Burma (Myanmar) (1906.08.18 – 1929.06.27) |
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