| Bishops (81) | Elected | Consecrated |
 Archbishop Domenico Mennaformer Bishop of Mantova (Italy) | 1928.11.16 | 1929.01.06 |
 Bishop José María Eguino Trecuformer Bishop of Santander (Spain) | 1928.10.02 | 1929.01.13 |
| Cardinal Luigi Sincero former Cardinal-Bishop of Palestrina former President of Pontifical Commission for the Authentic Interpretation of the Code of Canon Law former President of Pontifical Commission for the Codification of Oriental Canon Law former Secretary of Sacred Congregation for the Oriental Churches | 1929.01.11 | 1929.01.13 |
| Bishop Ernesto de Laurentiis former Bishop of Ischia (Italy) | 1928.11.10 | 1929.01.20 |
 Bishop Gustave-Joseph Deswazières (祝福), M.E.P.former Bishop of Beihai 北海 (China) | 1928.02.15 | 1929.01.27 |
 Bishop Paolino Ladeuzeformer Titular Bishop of Tiberias | 1928.10.21 | 1929.02.02 |
 Archbishop Jacques Nessimian (Armenian Rite)former Archbishop-Bishop of Iskanderiya of the Armenians (Egypt) | 1928.07.01 | 1929.02.03 |
| Archbishop Settimio Peroni former Bishop of Norcia (Italy) | 1928.12.17 | 1929.02.03 |
 Blessed Archbishop Teofilo Matulionisformer Bishop of Kaišiadorys (Lithuania) former Archbishop ad personam | 1928.12.08 | 1929.02.09 |
 Bishop Jacob Abraham Theophilos Kalapurakal (Syro-Malankar Rite)former Bishop of Tiruvalla of the Syro-Malankars (India) | 1932.02.13 | 1929.02.16 |
| Bishop Gaetano Mignani (梅雅誼), C.M. former Bishop of Ji’an 吉安 (China) | 1928.07.16 | 1929.02.17 |
 Archbishop József Grószformer Metropolitan Archbishop of Kalocsa (Hungary) | 1928.12.17 | 1929.02.24 |
 Bishop Nikolaus Baresformer Bishop of Berlin (Germany) | 1929.01.15 | 1929.02.24 |
 Archbishop Maurice-Louis Dubourgformer Metropolitan Archbishop of Besançon (France) | 1928.12.17 | 1929.02.25 |
 Bishop Joseph-Georges-Édouard Michaud, M. Afr.former Vicar Apostolic of Uganda (Uganda) | 1928.11.17 | 1929.03.03 |
 Bishop John Francis O’Hernformer Bishop of Rochester (USA) | 1929.01.04 | 1929.03.09 |
| Bishop Manuel López Arana former Titular Bishop of Curium former Apostolic Administrator of Ciudad Rodrigo (Spain) | 1929.02.05 | 1929.03.10 |
| Bishop Camille Pic former Bishop of Valence (France) | 1928.12.17 | 1929.03.12 |
| Bishop Robert John Armstrong former Bishop of Sacramento (USA) | 1929.01.04 | 1929.03.12 |
| Bishop Feliciano Rocha Pizarro former Bishop of Plasencia (Spain) | 1928.11.09 | 1929.03.17 |
| Bishop Bernard James Sullivan, S.J. former Bishop of Patna (India) | 1929.01.15 | 1929.03.17 |
| Bishop Justin Cawet former Coadjutor Bishop of Namur (Belgium) | 1929.01.28 | 1929.03.19 |
 Archbishop Franz Kamprathformer Auxiliary Bishop of Wien (Austria) | 1929.02.15 | 1929.03.31 |
 Bishop Giovanni Battista Anselmo, P.I.M.E.former Bishop of Dinajpur (Bangladesh) | 1929.02.07 | 1929.04.01 |
 Archbishop Giovanni Maria Emilio Castellani, O.F.M.former Vicar Apostolic of Addis Abeba (Ethiopia) | 1929.01.15 | 1929.04.02 |
 Bishop Wenceslaus Kinold (ヴェンチェスラオ・キノルド), O.F.M.former Vicar Apostolic of Sapporo 札幌 (Japan) | 1929.03.18 | 1929.04.03 |
 Bishop Angelo Maria Navarroformer Bishop of Santa Rosa de Copán (Honduras) | 1928.12.17 | 1929.04.07 |
 Bishop Francesco Fellingerformer Auxiliary Bishop of Jerusalem (Palestine) | 1929.02.26 | 1929.04.07 |
| Bishop Salvatore Del Bene former Bishop of Telese (Italy) | 1928.12.15 | 1929.04.14 |
| Bishop Evarist Zhang Zhi-liang (張智良) former Vicar Apostolic of Jining 集寧 (China) | 1929.02.02 | 1929.04.14 |
| Bishop Matteo Pellegrino former Bishop of Bobbio–San Colombano (Italy) | 1928.12.17 | 1929.04.17 |
| Bishop Stefano Hász former Titular Bishop of Sura | 1929.02.28 | 1929.04.28 |
| Archbishop Giovanni Costantini former Bishop of La Spezia (Italy) former Bishop of Brugnato (Italy) former Bishop of Luni–Sarzana | 1929.02.08 | 1929.05.05 |
| Bishop Federico Emmanuel, S.D.B. former Bishop of Castellammare di Stabia (Italy) | 1929.04.18 | 1929.05.10 |
 Archbishop Marcolino Esmeraldo de Souza Dantasformer Metropolitan Archbishop of Natal (Brazil) | 1929.03.01 | 1929.05.19 |
| Bishop Ange-Marie-Paul Hiral, O.F.M. former Vicar Apostolic of Port-Said (Egypt) | 1929.03.18 | 1929.05.19 |
 Bishop William Finnemann, S.V.D.former Prefect Apostolic of Mindoro (Philippines) | 1929.02.08 | 1929.05.21 |
| Archbishop Gerald Patrick Aloysius O’Hara former Archbishop-Bishop of Savannah (USA) | 1929.04.26 | 1929.05.21 |
| Bishop Cesare Marie Guerrero former Bishop of San Fernando (Philippines) | 1929.02.22 | 1929.05.24 |
| Archbishop Francesco Petronelli former Archbishop of Barletta (Italy) former Metropolitan Archbishop of Trani (Italy) | 1929.01.18 | 1929.05.26 |
 Archbishop Walenty Dymekformer Metropolitan Archbishop of Poznań (Poland) | 1929.05.10 | 1929.05.26 |
| Bishop Pio de Freitas Silveira, C.M. former Bishop of Joinville (Brazil) | 1929.01.25 | 1929.06.09 |
| Archbishop Luciano Pérez Platero former Metropolitan Archbishop of Burgos (Spain) | 1929.02.05 | 1929.06.09 |
| Cardinal Manuel Arce y Ochotorena former Cardinal-Priest of Ss. Vitale, Valeria, Gervasio e Protasio former Metropolitan Archbishop of Tarragona (Spain) | 1929.02.05 | 1929.06.16 |
 Bishop Pedro Dionisio Tibilettiformer Bishop of San Luis (Argentina) | 1929.01.25 | 1929.06.23 |
| Cardinal Clément-Émile Roques former Cardinal-Priest of S. Balbina former Metropolitan Archbishop of Rennes (France) | 1929.04.15 | 1929.06.24 |
| Bishop Hippolyte Tréhiou former Bishop of Vannes (France) | 1929.04.15 | 1929.06.24 |
| Cardinal Francesco Borgongini Duca former Cardinal-Priest of S. Maria in Vallicella former Pontifical Delegate for the Shrine of the Holy House of Loreto former Pontifical Administrator of the Patriarchal Basilica of Saint Paul Outside-the-Walls | 1929.06.07 | 1929.06.29 |
| Cardinal Pierre-Marie Gerlier former Cardinal-Priest of SS. Trinità al Monte Pincio former Metropolitan Archbishop of Lyon (France) | 1929.05.14 | 1929.07.02 |
| Bishop Edward Thomas Sheehan (徐安慶), C.M. former Vicar Apostolic of Yujiang 餘江 (China) | 1929.02.04 | 1929.07.14 |
 Bishop Gregorij Rožmanformer Bishop of Ljubljana (Slovenia) | 1929.03.17 | 1929.07.14 |
 Bishop Burcardo Huwiler, M. Afr.former Vicar Apostolic of Bubuka (Tanzania) | 1929.03.18 | 1929.07.14 |
 Archbishop Basile Vladimir Ladyka, O.S.B.M. (Ukrainian Rite)former Apostolic Exarch of Manitoba of the Ukrainians (Canada) | 1929.05.20 | 1929.07.14 |
| Bishop Antoon Oomen, M. Afr. former Vicar Apostolic of Mwanza (Tanzania) | 1929.03.18 | 1929.07.21 |
 Archbishop Miguel Paternain, C.SS.R.former Bishop of Florida (Uruguay) | 1929.04.20 | 1929.07.21 |
| Blessed Cardinal Alfredo Ildefonso Schuster, O.S.B. Cas. former Cardinal-Priest of Ss. Silvestro e Martino ai Monti former Metropolitan Archbishop of Milano (Italy) | 1929.06.26 | 1929.07.21 |
| Archbishop Cyrill Rudolph Jarre (楊恩賚), O.F.M. former Metropolitan Archbishop of Jinan 濟南 (China) | 1929.05.18 | 1929.07.25 |
 Bishop Martino Meulenberg, S.M.M.former Vicar Apostolic of Islanda (Iceland) | 1929.05.30 | 1929.07.25 |
| Bishop Giovanni Jeremich former Auxiliary Bishop of Venezia (Italy) | 1929.05.31 | 1929.07.25 |
 Archbishop Thomas Leighton Williamsformer Metropolitan Archbishop of Birmingham (England) | 1929.06.23 | 1929.07.25 |
 Bishop Josip Marija Carevicformer Bishop of Dubrovnik (Croatia) | 1929.04.13 | 1929.08.04 |
| Archbishop Ercole Attuoni former Metropolitan Archbishop of Fermo (Italy) | 1929.07.15 | 1929.08.11 |
 Bishop Daniel Mageeanformer Bishop of Down and Connor (Northern Ireland) | 1929.05.29 | 1929.08.25 |
 Bishop James Byrneformer Bishop of Toowoomba (Australia) | 1929.05.28 | 1929.09.01 |
| Bishop William Bouter, M.H.M. former Bishop of Nellore (India) | 1929.05.28 | 1929.09.08 |
| Bishop John Aloysius Coleman former Bishop of Armidale (Australia) | 1929.05.31 | 1929.09.08 |
| Bishop Edmund Joseph Gleeson, C.SS.R. former Bishop of Maitland (Australia) | 1929.05.31 | 1929.09.15 |
| Archbishop Louis-Joseph Fillon former Metropolitan Archbishop of Bourges (France) | 1929.06.21 | 1929.09.24 |
 Archbishop Andrew Thomas McDonald, O.S.B.former Metropolitan Archbishop of Saint Andrews and Edinburgh (Scotland) | 1929.07.19 | 1929.09.24 |
| Bishop Lino Rodrigo Ruesca former Bishop of Huesca (Spain) | 1929.05.01 | 1929.09.29 |
| Bishop Daniel Henrique Hostin, O.F.M. former Bishop of Lages (Brazil) | 1929.08.02 | 1929.09.29 |
| Bishop Antonio Colturato, O.F.M. Cap. former Bishop of Botucatu (Brazil) | 1929.08.02 | 1929.10.04 |
| Bishop Henri Lamiroy former Bishop of Brugge (Belgium) | 1929.08.06 | 1929.10.14 |
| Archbishop Ivan Bucko (Ukrainian Rite) former Auxiliary Bishop of United States of America of the Ukrainians (USA) | 1929.09.16 | 1929.10.20 |
| Archbishop Luigi Bondini, O.F.M. Conv. former Titular Archbishop of Perge | 1929.09.29 | 1929.10.20 |
| Bishop Aloysius Joseph Willinger, C.SS.R. former Bishop of Monterey–Fresno (USA) | 1929.03.08 | 1929.10.28 |
 Bishop Frédéric-Joseph-Marie Provost, M.E.P.former Vicar Apostolic of Southern Burma (Myanmar) | 1929.05.20 | 1929.11.21 |
 Archbishop Giovanni Battista Dellepianeformer Titular Archbishop of Stauropolis former Apostolic Nuncio to Austria | 1929.07.18 | 1929.11.30 |
| Archbishop Antonin-Fernand Drapier, O.P. former Titular Archbishop of Neocæsarea in Ponto | 1929.10.07 | 1929.12.22 |
| Bishop Joseph Henry Albers former Bishop of Lansing (USA) | 1929.12.16 | 1929.12.27 |
| Cardinal Jean Verdier, P.S.S. former Cardinal-Priest of S. Balbina former Metropolitan Archbishop of Paris (France) | 1929.11.18 | 1929.12.29 |
