Cardinal electors for the 1939 papal conclave
The cardinal electors in the 1939 papal conclave numbered 62 and all of them participated. They are arranged by region, and within each alphabetically.- Tommaso Boggiani, OP, Chancellor of Apostolic Chancery
- Camillo Caccia-Dominioni, Prefect of Pontifical Household
- Nicola Canali, Assessor of Holy Office
- Federico Cattani Amadori, Secretary of Apostolic Signatura
- Enrico Gasparri, Prefect of Apostolic Signatura
- Pietro Fumasoni Biondi, Prefect of Propagation of the Faith
- Gennaro Granito Pignatelli di Belmonte, Dean of the College of Cardinals
- Domenico Jorio, Prefect of Discipline of the Sacraments
- Vincenzo Lapuma, Prefect of Religious
- Lorenzo Lauri, Major Penitentiary
- Luigi Maglione, Prefect of Council
- Domenico Mariani, Provost of the Administration of the Wealth of the Holy See
- Giovanni Mercati, Librarian of Vatican Library, Archivist of Vatican Secret Archives
- Eugenio Pacelli, Secretary of State, Camerlengo
- Raffaele Rossi, OCD, Secretary of Consistorial
- Carlo Salotti, Prefect of Rites
- Donato Sbarretti, Secretary of Holy Office
- Federico Tedeschini, Datary of His Holiness
- Eugène-Gabriel-Gervais-Laurent Tisserant, Secretary of Oriental Churches
- Alessandro Verde, Secretary of Rites
Italy">Kingdom of Italy (1861–1946)">Italy
- Alessio Ascalesi, CPPS, Archbishop of Naples
- Pietro Boetto, SJ, Archbishop of Genoa
- Elia Dalla Costa, Archbishop of Florence
- Carlo Cremonesi, Territorial Prelate Emeritus of Pompei
- Angelo Dolci, Archpriest of St. John Lateran Basilica
- Maurilio Fossati, OSsCGN, Archbishop of Turin
- Luigi Lavitrano, Archbishop of Palermo
- Francesco Marchetti-Selvaggiani, Vicar General of Rome
- Francesco Marmaggi, Nuncio to Poland
- Massimo Massimi, President of Codification of Oriental Canon Law
- Giovanni Nasalli Rocca di Corneliano, Archbishop of Bologna
- Ermenegildo Pellegrinetti, Nuncio Emeritus to Yugoslavia
- Adeodato Giovanni Piazza, OCD, Patriarch of Venice
- Giuseppe Pizzardo, Secretary of Extraordinary Ecclesiastical Affairs
- Alfredo Ildefonso Schuster, OSB, Archbishop of Milan
- Enrico Sibilia, Nuncio to Austria
France">French Third Republic">France
- Alfred-Henri-Marie Baudrillart, IOSFN, Rector of Institut Catholique de Paris
- Pierre-Marie Gerlier, Archbishop of Lyon
- Achille Liénart, Bishop of Lille
- Emmanuel Célestin Suhard, Archbishop of Reims
- Jean Verdier, PSS, Archbishop of Paris
Germany">Nazi Germany">Germany
- Adolf Bertram, Archbishop of Breslau
- Michael von Faulhaber, Archbishop of Munich and Freising
- Karl Joseph Schulte, Archbishop of Cologne
Spain">Second Spanish Republic">Spain
- Francisco Vidal y Barraquer, Archbishop of Tarragona
- Isidro Goma y Tomas, Archbishop of Toledo
- Pedro Segura y Sáenz, Archbishop of Seville
- Theodor Innitzer, Archbishop of Vienna
- Jozef-Ernest van Roey, Archbishop of Mechelen
- Karel Kašpar, Archbishop of Prague
Hungary">Hungary between the two world wars">Hungary
- Jusztinian Györg Seredi, OSB, Archbishop of Esztergom
Poland">Second Polish Republic">Poland
- August Hlond, SDB, Archbishop of Gniezno and Poznań
- Manuel Gonçalves Cerejeira, Patriarch of Lisbon
- Arthur Hinsley, Archbishop of Westminster
- Joseph MacRory, Archbishop of Armagh
- Dennis Joseph Dougherty, Archbishop of Philadelphia
- William Henry O'Connell, Archbishop of Boston
- George Mundelein, Archbishop of Chicago
- Jean-Marie-Rodrigue Villeneuve, OMI, Archbishop of Quebec
- Santiago Copello, Archbishop of Buenos Aires
- Sebastião da Silveira Cintra, Archbishop of Rio de Janeiro
- Ignatius Gabriel I Tappuni, Patriarch of Antioch of the Syrians