| Newly Elected Bishops (70) | Elected | Consecrated |
 Bishop Emilio Jiménez Pérezformer Titular Bishop of Anthedon former Apostolic Administrator of Barbastro (Spain) | 1918.01.04 | 1918.04.07 |
 Archbishop Carmelo Patanéformer Archbishop of Catania (Italy) | 1918.01.11 | 1918.02.17 |
 Bishop Benedito Paulo Alves de Souzaformer Bishop of Espírito Santo (Brazil) | 1918.01.28 | 1918.04.21 |
| Bishop Jonas de Araújo Batinga former Bishop of Penedo (Brazil) | 1918.01.28 | 1918.07.14 |
 Cardinal Georges-François-Xavier-Marie Grenteformer Cardinal-Priest of S. Bernardo alle Terme former Archbishop-Bishop of Le Mans (France) | 1918.01.30 | 1918.04.17 |
| Bishop Agostino Migliore former Bishop of Monopoli (Italy) | 1918.02.02 | 1918.03.10 |
 Bishop Daniel Mary Gormanformer Bishop of Boise City (USA) | 1918.02.06 | 1918.05.01 |
| Archbishop Joseph-Lucien Giray former Bishop of Cahors (France) | 1918.02.15 | 1918.05.01 |
| Archbishop Helvécio Gomes de Oliveira, S.D.B. former Metropolitan Archbishop of Mariana (Brazil) | 1918.02.15 | 1918.08.15 |
| Cardinal Francesco Marchetti Selvaggiani former Cardinal-Bishop of Ostia former Cardinal-Bishop of Frascati former Prefect of Sacred Congregation of Ceremonies former President of Pontifical Commission for Sacred Archaeology former Archpriest of Papal Archbasilica of Saint John Lateran former Vicar General for the Vicariate of Rome of Roma (Italy) former Secretary of Supreme Sacred Congregation of the Holy Office | 1918.02.16 | 1918.04.14 |
 Archbishop Luigi Francesco Pierini, O.F.M.former Metropolitan Archbishop of Sucre (Bolivia) | 1918.02.20 | 1918.05.30 |
 Bishop Gilberto Fuenzalida Guzmánformer Bishop of Concepción (Chile) | 1918.02.20 | 1918.06.07 |
| Bishop Carlos Silva Cotapos former Bishop of Talca (Chile) | 1918.02.20 | 1918.06.07 |
| Bishop Luis Antonio Castro Alvarez, SS.CC. former Bishop of San Carlos de Ancud (Chile) former Auxiliary Bishop of Santiago (Chile) | 1918.02.21 | 1918.06.02 |
| Bishop Matteo Múgica y Urrestarazu former Bishop of Vitoria (Spain) | 1918.02.22 | 1918.05.20 |
| Bishop Giorgio Giovanni Elli former Bishop of Squillace (Italy) | 1918.02.23 | 1918.05.06 |
 Bishop Denis Hallinanformer Bishop of Limerick (Ireland) | 1918.03.10 | 1918.03.10 |
 Archbishop William Haydenformer Archbishop of Hobart (Australia) | 1918.03.13 | 1918.09.08 |
 Bishop Jan Pacificus Bos, O.F.M. Cap.former Vicar Apostolic of Dutch Borneo (Indonesia) | 1918.03.13 | 1918.11.17 |
| Bishop Joseph Wilfrid Dwyer former Bishop of Wagga Wagga (Australia) | 1918.03.14 | 1918.10.13 |
 Bishop Joseph-Fructueux Bourgain (卜恩佑), M.E.P.former Vicar Apostolic of Ningyuanfu 寧遠府 (China) | 1918.03.31 | 1918.11.10 |
 Cardinal Wilhelmus Marinus van Rossum, C.SS.R.former Cardinal-Priest of S. Croce in Gerusalemme former Prefect of Sacred Congregation of the Propagation of the Faith former President of Pontifical Commission for Biblical Studies | 1918.04.25 | 1918.05.19 |
| Archbishop Thomas Joseph Walsh former Metropolitan Archbishop of Newark (USA) | 1918.05.10 | 1918.07.25 |
 Bishop Daniel Hermida Ortegaformer Bishop of Cuenca (Ecuador) | 1918.05.12 | 1919.11.09 |
| Bishop Gabriel Llompart y Jaume Santandreu former Bishop of Mallorca (Spain) | 1918.05.17 | 1918.09.15 |
| Bishop Marcial López y Criado former Bishop of Cádiz (Spain) | 1918.05.18 | 1918.10.20 |
 Bishop George Henry Bennettformer Bishop of Aberdeen (Scotland) | 1918.06.18 | 1918.08.01 |
| Archbishop Stefano Corbini former Bishop of Foligno (Italy) | 1918.06.18 | 1918.08.04 |
| Bishop Giuseppe Signore former Bishop of Telese (Italy) | 1918.06.20 | 1918.08.24 |
| Venerable Archbishop Giovanni Jacono former Bishop of Caltanissetta (Italy) | 1918.07.02 | 1918.09.08 |
 Bishop Jean-Baptiste Castanier (ジャン・バティスト・カスタニエ), M.E.P.former Bishop of Osaka 大阪 (Japan) | 1918.07.06 | 1918.08.29 |
| Archbishop John Timothy McNicholas, O.P. former Metropolitan Archbishop of Cincinnati (USA) | 1918.07.18 | 1918.09.08 |
| Bishop Christopher Edward Byrne former Bishop of Galveston (USA) | 1918.07.18 | 1918.11.10 |
| Archbishop Arthur Jerome Drossaerts former Metropolitan Archbishop of San Antonio (USA) | 1918.07.18 | 1918.12.08 |
| Bishop Jules Benjamin Jeanmard former Bishop of Lafayette in Louisiana (USA) | 1918.07.18 | 1918.12.08 |
 Bishop Władysław Krynickiformer Bishop of Włocławek (Poland) | 1918.07.29 | 1918.11.10 |
| Bishop Adalberto Stanislao Owczarek former Auxiliary Bishop of Włocławek (Poland) | 1918.07.29 | 1918.11.10 |
| Archbishop Stanisław Gall former Military Vicar of Poland (Poland) former Auxiliary Bishop of Warszawa (Poland) | 1918.07.29 | 1918.11.17 |
 Bishop Adolf Peter Szelazekformer Bishop of Lutsk (Ukraine) | 1918.07.29 | 1918.11.24 |
 Archbishop Romuald Jałbrzykowskiformer Metropolitan Archbishop of Vilnius (Lithuania) | 1918.07.29 | 1918.11.30 |
| Bishop Paweł Franciszek Kubicki former Auxiliary Bishop of Sandomierz (Poland) | 1918.07.29 | 1918.12.01 |
 Bishop Nicolás De Carloformer Bishop of Resistencia (Argentina) | 1918.08.02 | 1919.03.30 |
| Bishop Jean Castel former Bishop of Tulle (France) | 1918.08.03 | 1918.10.09 |
 Patriarch Luigi Barlassinaformer Patriarch of Jerusalem (Palestine) | 1918.08.09 | 1918.09.08 |
 Bishop Charles-Joseph Nicolas, S.M.former Vicar Apostolic of Fiji Island (Fiji) | 1918.08.12 | 1919.02.02 |
 Bishop Pierre Rossillon, M.S.F.S.former Bishop of Vizagapatam (India) | 1918.08.22 | 1919.05.07 |
 Bishop Nicolás Gonzalez Pérez, C.M.F.former Vicar Apostolic of Fernando Poo (Equatorial Guinea) | 1918.08.24 | 1918.11.30 |
 Bishop Thomas Broderick, S.M.A.former Vicar Apostolic of Northern Nigeria (Nigeria) | 1918.08.24 | 1918.12.08 |
 Bishop Auguste De Clercq, C.I.C.M.former Vicar Apostolic of Kasaï Supérieur (Congo-Kinshasa) | 1918.08.24 | 1919.01.12 |
 Bishop François-Joseph Dantin, M.S.former Vicar Apostolic of Antsirabé (Madagascar) | 1918.08.24 | 1919.08.05 |
| Archbishop Bolesław Twardowski former Metropolitan Archbishop of Lviv (Ukraine) | 1918.09.14 | 1919.01.12 |
| Bishop Marian Leon Fulman former Bishop of Lublin (Poland) | 1918.09.24 | 1918.11.17 |
| Bishop Henryk Ignazio Przezdziecki former Bishop of Siedlce (Poland) | 1918.09.24 | 1918.11.17 |
| Archbishop Pietro Mankowski former Bishop of Kamyanets-Podilskyi (Ukraine) | 1918.09.24 | 1918.12.01 |
| Bishop Eduard Graf O’Rourke former Bishop of Gdańsk (Poland) | 1918.09.29 | 1918.12.15 |
 Bishop Ernst Karl Jakob Seydlformer Auxiliary Bishop of Wien (Austria) | 1918.09.30 | 1918.11.30 |
| Blessed Archbishop Jurgis Matulaitis-Matulevicius, M.I.C. former Bishop of Vilnius (Lithuania) former Superior General of Congregation of Marian Fathers of the Immaculate Conception of the Blessed Virgin Mary (Marian Fathers) | 1918.10.23 | 1918.12.01 |
| Archbishop Giuseppe Lojacono former Bishop of Ariano (Italy) | 1918.11.04 | 1919.01.12 |
| Cardinal Santiago Luis Copello former Cardinal-Priest of S. Lorenzo in Damaso former Metropolitan Archbishop of Buenos Aires (Argentina) former Chancellor of Apostolic Chancery | 1918.11.08 | 1919.03.30 |
 Bishop Sofronio Hacbang y Gaborniformer Bishop of Calbayog (Philippines) | 1918.11.08 | 1919.06.08 |
| Bishop Adolfo Giuseppe Jelowicki former Auxiliary Bishop of Lublin (Poland) | 1918.11.09 | 1919.03.23 |
| Bishop Louis Termier former Bishop of Tarentaise (France) | 1918.11.29 | 1919.05.01 |
| Cardinal Enrique Pla y Deniel former Cardinal-Priest of S. Pietro in Montorio former Metropolitan Archbishop of Toledo (Spain) | 1918.12.04 | 1919.06.08 |
| Archbishop Zacarías Martínez Núñez, O.E.S.A. former Metropolitan Archbishop of Santiago de Compostela (Spain) | 1918.12.04 | 1919.06.15 |
| Bishop Antônio José dos Santos, C.M. former Bishop of Assis (Brazil) | 1918.12.13 | 1919.10.19 |
| Bishop Joseph Francis McGrath former Bishop of Baker City (USA) | 1918.12.21 | 1919.03.25 |
| Bishop Edmond Heelan former Bishop of Sioux City (USA) | 1918.12.21 | 1919.04.08 |
| Archbishop Antonio Torrini former Archbishop of Lucca (Italy) | 1918.12.23 | 1919.03.19 |
| Archbishop Augusto Curi former Metropolitan Archbishop of Bari e Canosa (Italy) | 1918.12.23 | 1919.03.25 |
| Archbishop Crescencio Errázuriz Valdivieso former Metropolitan Archbishop of Santiago (Chile) | 1918.12.30 | 1919.01.12 |
