| Newly Elected Bishops (56) | Elected | Consecrated |
 Cardinal Donato Sbarrettiformer Cardinal-Bishop of Sabina e Poggio Mirteto former Secretary of Supreme Sacred Congregation of the Holy Office | 1900.01.09 | 1900.02.04 |
 Bishop Denis O’Donaghueformer Bishop of Louisville (USA) | 1900.02.10 | 1900.04.25 |
 Bishop Clemente Coltelli (郭德禮), O.F.M.former Vicar Apostolic of Northern Shaanxi 陝西北境 (China) | 1900.02.15 | 1900.06.17 |
 Bishop Paul Basbous (Maronite Rite)former Bishop of Saïdā of the Maronites (Lebanon) | 1900.02.18 | 1900.02.18 |
 Archbishop Paul Rubianformer Auxiliary Bishop of the Vicariate of Rome of Roma (Italy) | 1900.02.24 | 1900.03.18 |
 Bishop Heinrich Marxformer Auxiliary Bishop of Wrocław (Poland) | 1900.03.11 | 1900.06.24 |
| Bishop Raniero Sarnari former Bishop of Macerata (Italy) former Bishop of Tolentino (Italy) | 1900.03.15 | 1900.05.20 |
 Bishop John Baptist Cahillformer Bishop of Portsmouth (England) | 1900.03.21 | 1900.05.01 |
| Bishop Richard Preston former Auxiliary Bishop of Hexham and Newcastle (England) | 1900.03.21 | 1900.07.25 |
 Archbishop Bertram Orthformer Bishop of Victoria (Canada) | 1900.03.24 | 1900.06.10 |
 Bishop Heinrich Brückformer Bishop of Mainz (Germany) | 1900.03.30 | 1900.05.20 |
| Bishop Bernhard Joseph Doebbing, O.F.M. former Bishop of Sutri (Italy) former Bishop of Nepi (Italy) | 1900.04.01 | 1900.04.22 |
| Bishop Benjamin Joseph Keiley former Bishop of Savannah (USA) | 1900.04.02 | 1900.06.03 |
| Archbishop Henry Moeller former Metropolitan Archbishop of Cincinnati (USA) | 1900.04.06 | 1900.08.25 |
 Bishop André-Marie-Elie Jarosseau, O.F.M. Cap.former Vicar Apostolic of Harar (Ethiopia) | 1900.04.06 | 1900.09.16 |
| Bishop Próspero París (姚宗李), S.J. former Vicar Apostolic of Nanjing 南京 (China) | 1900.04.06 | 1900.11.11 |
 Cardinal Rafael Merry del Val y Zuluetaformer Cardinal-Priest of S. Prassede former President of Sacred Congregation of the Reverend Basilica of Saint Peter former Archpriest of Papal Basilica of Saint Peter former Secretary of Supreme Sacred Congregation of the Holy Office | 1900.04.09 | 1900.05.06 |
| Bishop Ignacio Monterisi former Bishop of Potenza (Italy) former Bishop of Marsico Nuovo (Italy) | 1900.04.19 | 1900.04.29 |
| Archbishop Diomede Panici former Secretary of Congregation for Sacred Rites | 1900.04.19 | 1900.05.01 |
| Cardinal Domenico Serafini, O.S.B. Subl. former Cardinal-Priest of S. Cecilia former Archbishop of Spoleto (Italy) former Prefect of Sacred Congregation of the Propagation of the Faith | 1900.04.19 | 1900.05.06 |
| Cardinal Angelo Maria Dolci former Cardinal-Bishop of Palestrina former Archpriest of Papal Basilica of Saint Mary Major | 1900.04.19 | 1900.05.13 |
| Bishop Tito Maria Cucchi former Bishop of Senigallia (Italy) | 1900.04.19 | 1900.05.13 |
| Bishop Domenico Pugliatti former Bishop of Bova (Italy) | 1900.04.19 | 1900.05.13 |
 Bishop Károly Emmánuel de Csákyformer Bishop of Vác (Hungary) | 1900.04.19 | 1900.06.17 |
| Bishop Henry Regis Granjon former Bishop of Tucson (USA) | 1900.04.19 | 1900.06.17 |
| Bishop Manuel María Cerero y Soler former Bishop of Segorbe (Spain) | 1900.04.19 | 1900.06.29 |
| Bishop Giuseppe Paderi former Bishop of Ogliastra (Italy) | 1900.04.19 | 1900.07.29 |
| Bishop Wenceslao Sangüesa y Guía former Bishop of Cuenca (Spain) | 1900.04.19 | 1900.08.05 |
 Bishop Fidel Olivas Escuderoformer Bishop of Ayacucho (Peru) | 1900.04.19 | 1900.08.15 |
| Bishop Joseph-Marie Lavest (羅惠良), M.E.P. former Prefect Apostolic of Guangxi 廣西 (China) | 1900.04.26 | 1900.08.24 |
| Bishop Théotime Matthieu Verhaehen (德希聖), O.F.M. former Vicar Apostolic of Southwestern Hupeh 湖北南境 (China) | 1900.04.27 | 1900.11.11 |
| Bishop Peter Joseph O’Reilly former Auxiliary Bishop of Peoria (USA) | 1900.06.20 | 1900.09.21 |
| Bishop Wilhelm Schneider former Bishop of Paderborn (Germany) | 1900.06.25 | 1900.08.15 |
| Bishop Paul-Raphaël Abi-Mourad (Greek-Melkite Rite) former Titular Bishop of Damiata of the Greek-Melkites | 1900.07.02 | 1900.09.02 |
 Bishop Luis María Benziger, O.C.D.former Bishop of Quilon (India) | 1900.07.17 | 1900.11.18 |
 Archbishop Martín Tritschler y Córdobaformer Metropolitan Archbishop of Yucatán (Mexico) | 1900.07.28 | 1900.11.18 |
 Archbishop Augustin Marre, O.C.S.O.former Auxiliary Bishop of Reims (France) | 1900.08.11 | 1900.08.19 |
| Bishop Herman Joseph Alerding former Bishop of Fort Wayne (USA) | 1900.08.30 | 1900.11.30 |
| Bishop Rómulo Betancourt y Torres former Bishop of Campeche (Mexico) | 1900.08.31 | 1900.11.30 |
 Archbishop Clément Michel Bakhache (Syriac Rite)former Metropolitan Archbishop of Damascus of the Syriacs (Syria) | 1900.09.24 | 1900.09.24 |
 Bishop José María Villalbaformer Bishop of Antioquía (Colombia) | 1900.09.25 | ? |
| Bishop Francesco Giacci former Bishop of Marsi (Italy) | 1900.09.26 | 1900.10.07 |
| Bishop Jean-Marie Crochet former Bishop of Nagpur (India) | 1900.10.25 | 1901.02.10 |
 Archbishop Lazare Miediaformer Metropolitan Archbishop of Shkodrë (Albania) | 1900.11.10 | 1901.01.20 |
| Archbishop Leopoldo Ruiz y Flóres former Metropolitan Archbishop of Morelia (Mexico) | 1900.11.12 | 1900.12.27 |
| Archbishop Paolo Jacuzio former Metropolitan Archbishop of Sorrento (Italy) | 1900.12.17 | 1900.12.21 |
| Bishop Sabbatino Giani former Bishop of Livorno (Italy) | 1900.12.17 | 1900.12.21 |
| Bishop Antonio Maria Jannotta former Bishop of Sora (Italy) former Bishop of Pontecorvo (Italy) former Bishop of Aquino (Italy) | 1900.12.17 | 1900.12.23 |
| Archbishop Natale Bruni former Metropolitan Archbishop of Modena (Italy) former Abbot nullius of Nonantola (Italy) | 1900.12.17 | 1900.12.27 |
| Bishop Josef Medard Kohl, O.S.B. former Auxiliary Bishop of Esztergom (Hungary) | 1900.12.17 | 1900.12.27 |
| Bishop Anatol Novak former Bishop of Przemyśl (Poland) | 1900.12.17 | 1900.12.30 |
| Bishop Vincenzo Scozzoli former Bishop of Rimini (Italy) | 1900.12.17 | 1900.12.31 |
| Bishop Filippo Genovese former Titular Bishop of Sarepta | 1900.12.17 | 1901.01.03 |
 Saint Archbishop Józef Bilczewskiformer Metropolitan Archbishop of Lviv (Ukraine) | 1900.12.17 | 1901.01.20 |
 Bishop Antonio José Gomes Cardosoformer Bishop of São Paulo de Loanda (Angola) | 1900.12.17 | 1901.03.25 |
| Bishop Giuliano Cabras former Auxiliary Bishop of Sassari (Italy) | 1900.12.17 | 1901.06.09 |
