| Bishops (71) | Elected | Consecrated |
 Cardinal Lev Skrbenský z Hřištěformer Cardinal-Priest of S. Stefano al Monte Celio former Metropolitan Archbishop of Olomouc (Czechia) | 1899.12.14 | 1900.01.06 |
 Bishop Ernest François Geurts (武致中), C.M.former Vicar Apostolic of Yongpingfu 永平府 (China) | 1899.12.14 | 1900.02.04 |
 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 |
 Archbishop Timothy Caseyformer Metropolitan Archbishop of Vancouver (Canada) | 1899.09.30 | 1900.02.11 |
| Bishop Thomas Francis Barry former Bishop of Chatham (Canada) | 1899.09.30 | 1900.02.11 |
 Bishop Henri de Lespinasse de Saune, S.J.former Vicar Apostolic of Tananarive (Madagascar) | 1899.11.22 | 1900.02.18 |
 Bishop Aloys-Joseph-Eugène Arnaudformer Bishop of Fréjus (France) | 1899.12.14 | 1900.02.18 |
| Bishop Louis Olivieri former Bishop of Ajaccio (France) | 1899.12.14 | 1900.02.18 |
 Bishop Paul Basbous (Maronite Rite)former Bishop of Saïdā of the Maronites (Lebanon) | 1900.02.18 | 1900.02.18 |
| Bishop Jules-Louis-Marie de Carsalade du Pont former Bishop of Perpignan–Elne (France) | 1899.12.14 | 1900.02.22 |
| Bishop François-Xavier Schoepfer former Bishop of Tarbes et Lourdes (France) | 1899.12.14 | 1900.02.22 |
| Cardinal François-Virgile Dubillard former Cardinal-Priest of S. Susanna former Metropolitan Archbishop of Chambéry (France) | 1899.12.14 | 1900.02.24 |
| Archbishop Sébastien Herscher former Bishop of Langres (France) | 1899.12.14 | 1900.02.24 |
| Bishop Marie-Jean-Célestin Douais former Bishop of Beauvais (France) | 1899.12.14 | 1900.02.24 |
| Bishop Paul-Emile-Marie-Joseph Henry former Bishop of Grenoble (France) | 1899.12.14 | 1900.02.24 |
 Bishop Francisco Javier Valdés y Noriega, O.E.S.A.former Bishop of Salamanca (Spain) | 1898.03.24 | 1900.02.25 |
| Bishop Isidoro Clemente Gutiérrez (黎克勉), O.P. former Vicar Apostolic of Amoy 廈門 (China) | 1899.08.07 | 1900.03.11 |
| Bishop Louis-Eugène Francqueville former Bishop of Rodez (France) | 1899.12.14 | 1900.03.11 |
 Archbishop Alain Guynot de Boismenu, M.S.C.former Vicar Apostolic of Papua (Papua New Guinea) | 1899.05.23 | 1900.03.18 |
 Archbishop Paul Rubianformer Auxiliary Bishop of the Vicariate of Rome of Roma (Italy) | 1900.02.24 | 1900.03.18 |
| Bishop Jean Louis Mando former Bishop of Angoulême (France) | 1899.12.14 | 1900.03.25 |
| Bishop Bernhard Joseph Doebbing, O.F.M. former Bishop of Sutri (Italy) former Bishop of Nepi (Italy) | 1900.04.01 | 1900.04.22 |
 Bishop Denis O’Donaghueformer Bishop of Louisville (USA) | 1900.02.10 | 1900.04.25 |
| Bishop Stanislas-François Jarlin (林懋德), C.M. former Vicar Apostolic of Beijing 北京 (China) | 1899.12.28 | 1900.04.29 |
| Bishop Ignacio Monterisi former Bishop of Potenza (Italy) former Bishop of Marsico Nuovo (Italy) | 1900.04.19 | 1900.04.29 |
| Archbishop Maurice-Charles-Alfred de Cormont former Bishop of Aire et Dax (France) | 1899.12.14 | 1900.05.01 |
 Bishop John Baptist Cahillformer Bishop of Portsmouth (England) | 1900.03.21 | 1900.05.01 |
| Archbishop Diomede Panici former Secretary of Congregation for Sacred Rites | 1900.04.19 | 1900.05.01 |
| Cardinal Rafael Merry del Val y Zulueta former 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 |
| 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 Raniero Sarnari former Bishop of Macerata (Italy) former Bishop of Tolentino (Italy) | 1900.03.15 | 1900.05.20 |
 Bishop Heinrich Brückformer Bishop of Mainz (Germany) | 1900.03.30 | 1900.05.20 |
| Bishop Benjamin Joseph Keiley former Bishop of Savannah (USA) | 1900.04.02 | 1900.06.03 |
| Archbishop Bertram Orth former Bishop of Victoria (Canada) | 1900.03.24 | 1900.06.10 |
| 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 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 Heinrich Marxformer Auxiliary Bishop of Wrocław (Poland) | 1900.03.11 | 1900.06.24 |
| Bishop Manuel María Cerero y Soler former Bishop of Segorbe (Spain) | 1900.04.19 | 1900.06.29 |
| Bishop Richard Preston former Auxiliary Bishop of Hexham and Newcastle (England) | 1900.03.21 | 1900.07.25 |
| 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 Wilhelm Schneider former Bishop of Paderborn (Germany) | 1900.06.25 | 1900.08.15 |
 Bishop Aquilino Ferreyra y Alvarezformer Auxiliary Bishop of Córdoba (Argentina) | 1899.11.16 | 1900.08.19 |
| Archbishop Augustin Marre, O.C.S.O. former Auxiliary Bishop of Reims (France) | 1900.08.11 | 1900.08.19 |
| Bishop Filemón Cabanillas former Auxiliary Bishop of Córdoba (Argentina) | 1899.11.16 | 1900.08.24 |
| Bishop Joseph-Marie Lavest (羅惠良), M.E.P. former Prefect Apostolic of Guangxi 廣西 (China) | 1900.04.26 | 1900.08.24 |
| Archbishop Henry Moeller former Metropolitan Archbishop of Cincinnati (USA) | 1900.04.06 | 1900.08.25 |
| Bishop Paul-Raphaël Abi-Mourad (Greek-Melkite Rite) former Titular Bishop of Damiata of the Greek-Melkites | 1900.07.02 | 1900.09.02 |
 Bishop André-Marie-Elie Jarosseau, O.F.M. Cap.former Vicar Apostolic of Harar (Ethiopia) | 1900.04.06 | 1900.09.16 |
| Bishop Peter Joseph O’Reilly former Auxiliary Bishop of Peoria (USA) | 1900.06.20 | 1900.09.21 |
 Archbishop Clément Michel Bakhache (Syriac Rite)former Metropolitan Archbishop of Damascus of the Syriacs (Syria) | 1900.09.24 | 1900.09.24 |
| Bishop Francesco Giacci former Bishop of Marsi (Italy) | 1900.09.26 | 1900.10.07 |
| Bishop Próspero París (姚宗李), S.J. former Vicar Apostolic of Nanjing 南京 (China) | 1900.04.06 | 1900.11.11 |
| 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 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 |
| 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 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 Leopoldo Ruiz y Flóres former Metropolitan Archbishop of Morelia (Mexico) | 1900.11.12 | 1900.12.27 |
| 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 |
