| Bishops (86) | Elected | Consecrated |
 Archbishop Jean-Joseph-Aimé Moussaronformer Metropolitan Archbishop of Albi (France) | 1929.10.09 | 1930.01.06 |
| Archbishop Virgile-Joseph Béguin former Metropolitan Archbishop of Auch (France) | 1929.11.15 | 1930.01.14 |
 Bishop Ivan Latyševskyj (Ukrainian Rite)former Auxiliary Bishop of Ivano-Frankivsk of the Ukrainians (Ukraine) | 1929.11.24 | 1930.01.26 |
 Bishop Jan Remigerformer Auxiliary Bishop of Praha (Czechia) | 1929.12.16 | 1930.02.02 |
 Bishop Leopoldo Díaz y Escuderoformer Bishop of Chilapa (Mexico) | 1929.11.05 | 1930.02.09 |
 Archbishop Eduardo Tonnaformer Metropolitan Archbishop of Izmir (Turkiye) | 1929.11.26 | 1930.02.09 |
 Archbishop Pierre-Guillaume Marque, O.M.I.former Metropolitan Archbishop of Colombo (Sri Lanka) | 1929.12.16 | 1930.02.11 |
 Bishop Antônio Mazzarottoformer Bishop of Ponta Grossa (Brazil) | 1929.12.16 | 1930.02.23 |
 Bishop Paul Wang Wen-cheng (王文成)former Bishop of Shunqing 順慶 (China) | 1929.12.02 | 1930.02.24 |
| Bishop Francis Xavier Wang Ze-pu (Wang Tse-pu) (王澤浦) former Bishop of Wanxian 萬縣 (China) | 1929.12.16 | 1930.02.24 |
 Bishop Franz Joseph Fischerformer Auxiliary Bishop of Rottenburg (Germany) | 1929.12.19 | 1930.02.24 |
 Cardinal Adeodato Giovanni Piazza, O.C.D.former Cardinal-Bishop of Sabina e Poggio Mirteto former Secretary of Sacred Consistorial Congregation | 1930.01.29 | 1930.02.24 |
| Archbishop Giovanni Sismondo former Bishop of Pontremoli (Italy) | 1930.02.06 | 1930.03.09 |
 Archbishop Herman Joseph Meysing, O.M.I.former Metropolitan Archbishop of Bloemfontein (South Africa) | 1929.12.19 | 1930.03.19 |
| Archbishop Carlo Margotti former Metropolitan Archbishop of Gorizia e Gradisca (Italy) | 1930.03.08 | 1930.03.25 |
| Bishop Gaudenzio Binaschi former Bishop of Pinerolo (Italy) | 1930.01.20 | 1930.03.30 |
 Bishop Olaf Offerdahlformer Vicar Apostolic of Norway (Norway) | 1930.03.13 | 1930.04.06 |
 Bishop Edoardo Luigi Antonio Leys, M. Afr.former Vicar Apostolic of Kivu (Congo-Kinshasa) | 1929.12.19 | 1930.04.21 |
| Cardinal Giuseppe Pizzardo former Cardinal-Bishop of Albano former Prefect of Sacred Congregation for Catholic Education | 1930.03.28 | 1930.04.27 |
 Bishop Joseph-Wilfrid Guy, O.M.I.former Bishop of Gravelbourg (Canada) | 1929.12.19 | 1930.05.01 |
 Bishop Augustin-Marie Tardieu, M.E.P.former Vicar Apostolic of Quinhon (Vietnam) | 1929.12.19 | 1930.05.01 |
| Cardinal José Garibi Rivera former Cardinal-Priest of S. Onofrio former Metropolitan Archbishop of Guadalajara (Mexico) | 1929.12.16 | 1930.05.07 |
| Archbishop Gerald C. Murray, C.SS.R. former Bishop of Saskatoon (Canada) former Coadjutor Archbishop of Winnipeg (Canada) | 1930.01.30 | 1930.05.07 |
| Bishop Vicente Camacho y Moya former Bishop of Tabasco (Mexico) | 1930.02.14 | 1930.05.07 |
 Bishop James Patrick O’Collinsformer Bishop of Ballarat (Australia) | 1930.02.11 | 1930.05.11 |
| Bishop Pierre-Henri-Noël Gubbels (顧學德), O.F.M. former Bishop of Yichang 宜昌 (China) | 1930.03.25 | 1930.05.11 |
| Cardinal James Charles McGuigan former Cardinal-Priest of S. Maria del Popolo former Metropolitan Archbishop of Toronto (Canada) | 1930.01.30 | 1930.05.15 |
 Archbishop Nikolay Avtonomovformer Titular Archbishop of Ratiaria | (1945.10.06) | 1930.05.18 ▼ |
 Archbishop Antonio García y Garcíaformer Metropolitan Archbishop of Valladolid (Spain) | 1930.02.05 | 1930.05.25 |
| Archbishop Terence Bernard McGuire former Archbishop of Canberra and Goulburn (Australia) | 1930.02.12 | 1930.05.25 |
| Archbishop Johannes Baptist Geisler former Bishop of Brixen (Italy) | 1930.04.02 | 1930.05.25 |
 Bishop James Edwin Cassidyformer Bishop of Fall River (USA) | 1930.03.21 | 1930.05.27 |
| Archbishop Federico Melendro Gutiérrez (梅耿光), S.J. former Metropolitan Archbishop of Anqing 安慶 (China) | 1930.02.14 | 1930.06.01 |
| Bishop Antonius Hilfrich former Bishop of Limburg (Germany) | 1930.03.31 | 1930.06.05 |
 Archbishop Johannes Henricus Gerardus Jansenformer Metropolitan Archbishop of Utrecht (Netherlands) | 1930.04.11 | 1930.06.05 |
| Bishop Tommaso Berutti (柏露梯), S.J. former Vicar Apostolic of Bengbu 蚌埠 (China) | 1929.12.19 | 1930.06.08 |
| Bishop Emiliano José Lonati, O.F.M. Cap. former Bishop-Prelate of São José do Grajaú (Brazil) | 1930.01.10 | 1930.06.08 |
| Bishop Dennis P. O’Connor former Bishop of Peterborough (Canada) | 1930.01.30 | 1930.06.11 |
 Bishop François O’Rourke, S.M.A.former Vicar Apostolic of Bight of Benin (Nigeria) | 1930.03.27 | 1930.06.15 |
| Archbishop Joseph Henry Leo Schlarman former Bishop of Peoria (USA) former Archbishop ad personam | 1930.04.19 | 1930.06.17 |
| Cardinal Carlo Salotti former Cardinal-Bishop of Palestrina former Prefect of Congregation for Sacred Rites | 1930.06.30 | 1930.07.06 |
 Bishop Franciszek-Piotr Bučys, M.I.C.former Superior General of Congregation of Marian Fathers of the Immaculate Conception of the Blessed Virgin Mary (Marian Fathers) | 1930.07.03 | 1930.07.06 |
 Bishop Jean Saint-Pierreformer Auxiliary Bishop of Carthage (Tunisia) | 1930.05.28 | 1930.07.15 |
| Bishop José María Alcaráz y Alenda former Bishop of Badajoz (Spain) | 1930.03.13 | 1930.07.20 |
| Archbishop Vahan Kitchourian (Armenian Rite) former Archbishop of Istanbul of the Armenians (Turkiye) | 1930.05.03 | 1930.07.20 |
| Cardinal Marcello Mimmi former Cardinal-Bishop of Sabina e Poggio Mirteto former President of Pontifical Commission for Latin America former President of Commission of Cardinals for the Shrine of Pompeii former Secretary of Sacred Consistorial Congregation | 1930.06.30 | 1930.07.25 |
 Bishop Augstín Barrere, F.M.I.former Bishop of Tucumán (Argentina) | 1930.01.16 | 1930.08.03 |
 Bishop Kidanè-Maryam Cassà (Eritrean Rite)former Ordinary of Eritrea of the Eritreans (Eritrea) | 1930.07.04 | 1930.08.03 |
| Venerable Archbishop Augusto Bertazzoni former Bishop of Potenza (Italy) former Bishop of Marsico Nuovo (Italy) former Archbishop ad personam | 1930.06.30 | 1930.08.15 |
 Archbishop Edgard Aristide Maranta, O.F.M. Cap.former Metropolitan Archbishop of Dar-es-Salaam (Tanzania) | 1930.03.27 | 1930.08.17 |
| Archbishop Paulin-Joseph-Justin Albouy (沈士杰), M.E.P. former Metropolitan Archbishop of Nanning 南寧 (China) | 1930.03.27 | 1930.08.24 |
| Bishop Jean Cuvelier, C.SS.R. former Vicar Apostolic of Matadi (Congo-Kinshasa) | 1930.07.14 | 1930.08.24 |
| Bishop Luigi Noviello former Bishop of Alife (Italy) | 1930.07.29 | 1930.08.31 |
| Bishop Domenico Petroni former Bishop of Venosa (Italy) former Bishop of Rapolla (Italy) former Bishop of Melfi (Italy) | 1930.07.29 | 1930.08.31 |
| Bishop Inocéncio Lopez Santamaria, O. de M. former Bishop-Prelate of Bom Jesus do Piauí (Brazil) | 1930.08.01 | 1930.08.31 |
| Bishop Giovanni Pirastru former Bishop of Iglesias (Italy) | 1930.07.22 | 1930.09.07 |
| Cardinal Jean-Marie-Rodrigue Villeneuve, O.M.I. former Cardinal-Priest of S. Maria degli Angeli former Metropolitan Archbishop of Québec (Canada) | 1930.07.03 | 1930.09.11 |
 Bishop Henri-Aimé-Anatole Prunier, M.E.P.former Bishop of Salem (India) | 1930.05.26 | 1930.09.14 |
| Bishop Luigi dell’Aversana former Bishop of Venosa (Italy) former Bishop of Rapolla (Italy) former Bishop of Melfi (Italy) | 1930.07.29 | 1930.09.14 |
| Bishop Sylvester Joseph Espelage (艾原道), O.F.M. former Vicar Apostolic of Wuchang 武昌 (China) | 1930.05.31 | 1930.09.17 |
 Bishop Thomas Addis Emmet, S.J.former Vicar Apostolic of Jamaica (Jamaica) | 1930.07.03 | 1930.09.21 |
| Archbishop Auguste-Siméon Colas, M.E.P. former Metropolitan Archbishop of Pondicherry and Cuddalore (India) | 1930.06.24 | 1930.09.29 |
| Archbishop Louis-Augustin Marmottin former Metropolitan Archbishop of Reims (France) | 1930.08.02 | 1930.10.02 |
| Bishop Lawrence Pereira former Bishop of Kottar (India) | 1930.05.26 | 1930.10.05 |
 Bishop Bernardo Dembekformer Auxiliary Bishop of Łomża (Poland) | 1930.07.25 | 1930.10.05 |
| Archbishop Włodzimierz Bronisław Jasiński former Bishop of Łódź (Poland) | 1930.08.21 | 1930.10.05 |
 Bishop Alois Scheiwilerformer Bishop of Sankt Gallen (Switzerland) | 1930.08.28 | 1930.10.05 |
| Bishop Francis Liu Jin-wen (Liu Chiu-wen) (劉錦文) former Bishop of Fenyang 汾陽 (China) | 1930.07.23 | 1930.10.12 |
| Bishop Alphonse-Paul-Désiré Gaudron former Bishop of Évreux (France) | 1930.08.02 | 1930.10.15 |
 Archbishop Albert-Pierre Falière, M.E.P.former Metropolitan Archbishop of Mandalay (Myanmar) | 1930.06.25 | 1930.10.18 |
 Bishop Miguel Monconill y Viladot, O.F.M. Cap.former Vicar Apostolic of Caquetá (Colombia) | 1930.06.11 | 1930.10.26 |
 Bishop Thomas James Wade, S.M.former Vicar Apostolic of Northern Solomon Islands (Papua New Guinea) | 1930.07.03 | 1930.10.26 |
| Bishop Stanisław Adamski former Bishop of Katowice (Poland) | 1930.09.02 | 1930.10.26 |
| Archbishop Mario Toccabelli former Metropolitan Archbishop of Siena (Italy) | 1930.09.16 | 1930.10.26 |
| Bishop Louis Benedict Kucera former Bishop of Lincoln (USA) | 1930.06.30 | 1930.10.28 |
| Bishop Alexandre-Paul-Marie Chabanon, M.E.P. former Vicar Apostolic of Huê (Vietnam) | 1930.07.03 | 1930.10.28 |
 Blessed Bishop Frano Gjiniformer Bishop of Lezhë (Albania) | 1930.07.03 | 1930.10.28 |
| Bishop Maximilian Josef Johannes Kaller former Bishop of Warmia (Poland) | 1930.07.23 | 1930.10.28 |
| Archbishop Edwin Vincent O’Hara former Bishop of Kansas City–Saint Joseph (USA) former Archbishop ad personam | 1930.08.06 | 1930.10.28 |
| Bishop Joseph Kumpfmüller former Bishop of Augsburg (Germany) | 1930.09.17 | 1930.10.28 |
| Bishop Alejandro García Fontcuberta, O.P. former Vicar Apostolic of Hai Phòng (Vietnam) | 1930.05.31 | 1930.11.02 |
| Bishop Jean-Baptiste-Michel-Marie-Louis Pénicaud (賁德馨), M.E.P. former Vicar Apostolic of Beihai 北海 (China) | 1929.12.16 | 1930.11.09 |
| Bishop Ignazio Canazei (耿其光), S.D.B. former Bishop of Shaoguan 韶關 (China) | 1930.07.23 | 1930.11.09 |
 Bishop Francesco Saverio Bini, F.S.C.I.former Vicar Apostolic of Khartoum (Sudan) | 1930.11.20 | 1930.12.07 |
 Bishop István Fiedlerformer Bishop of Satu Mare (Romania) former Bishop of Oradea Mare (Romania) | 1930.10.16 | 1930.12.08 |
| Bishop Lafayette Libânio former Bishop of Rio Preto (Brazil) | 1930.08.08 | 1930.12.27 |
