Day | Saints | Country | Year |
| August 11 |
| Saint Susanna di Roma, layperson |  Italy | 294 |
| Blessed Schetzel, religious |  Luxembourg | 1138 |
| Saint Clare of Assisi (Chiara Offreduccio), religious | Italy | 1253 |
| Blessed John Fingley, priest |  England | 1586 |
| Blessed John Sandys, priest | England | 1586 |
| Blessed Thomas (Jean-Georges Rehm), priest |  France | 1794 |
| Blessed Luigi Biraghi, priest | Italy | 1879 |
| Saint John Henry Newman, cardinal | England | 1890 |
| Blessed Adrián (Manuel Llop Plana), religious |  Spain | 1936 |
| Blessed Andrés José (Francisco Donázar Goñi), religious | Spain | 1936 |
| Blessed Antoni Casany Vilarrasa, religious | Spain | 1936 |
| Blessed Benigno José (José Valencia Janices), religious | Spain | 1936 |
| Blessed Carlos Díaz Gandía, layperson | Spain | 1936 |
| Blessed Emiliano José (Marcos Leyún Goñi), religious | Spain | 1936 |
| Blessed Jaime Oscar Valdés, religious | Spain | 1936 |
| Blessed Juan Bazaga Palacios, priest | Spain | 1936 |
| Blessed Leoncio Rosell Laboria, priest | Spain | 1936 |
| Blessed Miguel Romero Rojas, priest | Spain | 1936 |
| Blessed Rafael Alonso Gutiérrez, layperson | Spain | 1936 |
| Blessed Teófilo (Benjamín Fernández de Legaria Goñi), priest | Spain | 1936 |
| Blessed Timoteo José (Julián Lisbona Royo), religious | Spain | 1936 |
| Blessed Maurice Tornay (杜仲賢), priest |  China | 1949 |
| August 12 |
| Saint Euplio di Catania, deacon | Italy | 304 |
| Saint Muredach of Killala, bishop |  Ireland | 490 |
| Blessed Charles Meehan (Mahoney), priest |  Wales | 1679 |
| Blessed Innocent XI, pope | Italy | 1689 |
| Blessed Pierre Jarrige de la Morelie de Puyredon, priest | France | 1794 |
| Saint Antôn Nguyện Ðích, layperson |  Vietnam | 1838 |
| Saint Giacôbê Ðỗ Mai Năm, priest | Vietnam | 1838 |
| Saint Micae Nguyễn Huy Mỹ, layperson | Vietnam | 1838 |
| Blessed Antoni Pedro Jaime Nogués Martí, priest | Spain | 1936 |
| Blessed Antonio Molina Ariza, priest | Spain | 1936 |
| Blessed Antonio Perulles Estivil, priest | Spain | 1936 |
| Blessed Arístides Marcos (Pedro José Cano Cebrían), religious | Spain | 1936 |
| Blessed Atilano Dionisio (Flavio Argüeso González), religious | Spain | 1936 |
| Blessed Buenaventura García de Paredes, priest | Spain | 1936 |
| Blessed Carlos de Jesús María (Carles Barrufet Tost), religious | Spain | 1936 |
| Blessed Domingo Sánchez Lázaro, priest | Spain | 1936 |
| Blessed Enrique María Gómez Jiménez, priest | Spain | 1936 |
| Blessed Estefanía Saldaña Mayoral, religious | Spain | 1936 |
| Blessed Félix Pérez Portela, priest | Spain | 1936 |
| Blessed Gregorio Chirivas Lacambra, religious | Spain | 1936 |
| Blessed Gregorio Gómez Molina, priest | Spain | 1936 |
| Blessed Hilario Barriocanal Quintana, priest | Spain | 1936 |
| Blessed Joan Rofes Sancho, priest | Spain | 1936 |
| Blessed José Jordán y Blecua, priest | Spain | 1936 |
| Blessed José Nadal y Guiu, priest | Spain | 1936 |
| Blessed José María Pavón Bueno, priest | Spain | 1936 |
| Blessed Josep María Salvador Antonio Sancho Toda, priest | Spain | 1936 |
| Blessed Juana Pérez Abascal, religious | Spain | 1936 |
| Blessed Justino Gabriel (Gabriel Albiol Plou), religious | Spain | 1936 |
| Blessed Manuel Basulto y Jiménez, bishop | Spain | 1936 |
| Blessed Manuel Borras Ferré, bishop | Spain | 1936 |
| Blessed María Asunción Mayoral Peña, religious | Spain | 1936 |
| Blessed María Dolores Barroso Villaseñor, religious | Spain | 1936 |
| Blessed María Severina Díaz-Pardo Gauna, religious | Spain | 1936 |
| Blessed Melchora Adoración Cortés Bueno, religious | Spain | 1936 |
| Blessed Miguel Domingo Cendra, religious | Spain | 1936 |
| Blessed Nicasio Sierra Ucar, priest | Spain | 1936 |
| Blessed Pablo Figuerola Rovira, priest | Spain | 1936 |
| Blessed Pedro Cunill Padrós, priest | Spain | 1936 |
| Blessed Perfecto del Río Páramo, religious | Spain | 1936 |
| Blessed Ramón Martí Amenós, priest | Spain | 1936 |
| Blessed Ramona Cao Fernández, religious | Spain | 1936 |
| Blessed Sebastián Calvo Martínez, priest | Spain | 1936 |
| Blessed Victoria Díez y Bustos de Molina, layperson | Spain | 1936 |
| Blessed Wenceslao María Claris Vilarregut, religious | Spain | 1936 |
| Blessed Florian (Józef Stępniak), priest |  Germany | 1942 |
| Blessed Józef Straszewski, priest | Germany | 1942 |
| Blessed Karl Leisner, priest | Germany | 1945 |
| August 13 |
| Saint Radegonde de Poitiers, layperson | France | 587 |
| Saint Maximus of Constantinople, abbot |  Georgia | 662 |
| Saint Wigbert, abbot | Germany | 747 |
| Blessed Gertrud von Altenberg, abbess | Germany | 1297 |
| Blessed Patrick O’Healy, bishop | Ireland | 1579 |
| Blessed William Freeman, priest | England | 1595 |
| Saint John Berchmans (Jan Berchmans), priest | Italy | 1621 |
| Blessed Marco d’Aviano (Carlo Domenico Cristofori), priest |  Austria | 1699 |
| Blessed Pierre Gabilhaud, priest | France | 1794 |
| Saint Bénilde (Pierre Romançon), religious | France | 1862 |
| Blessed Agustí de Montclar de Donzell (Josep Alsina Casas), priest | Spain | 1936 |
| Blessed Alfonso Miquel Garriga, religious | Spain | 1936 |
| Blessed Andrés Serrano Muñoz, priest | Spain | 1936 |
| Blessed Andreu Prats Barrufet, priest | Spain | 1936 |
| Blessed Antolín María Calvo Calvo, religious | Spain | 1936 |
| Blessed Antonio María Dalmau Rosich, religious | Spain | 1936 |
| Blessed Esteban Casadevall Puig, religious | Spain | 1936 |
| Blessed Eusebio Codina Millá, religious | Spain | 1936 |
| Blessed Ferran Saperas Aluja, religious | Spain | 1936 |
| Blessed Francesc Castells Brenuy, priest | Spain | 1936 |
| Blessed Francisco Alfredo (Francisco Mallo Sánchez), religious | Spain | 1936 |
| Blessed Hilario María Llorente Martín, religious | Spain | 1936 |
| Blessed Hilarión Eugenio (Eugenio Cuesta Padierna), religious | Spain | 1936 |
| Blessed Inocencio García Díez, priest | Spain | 1936 |
| Blessed Javier Luis Bandrés Jiménez, religious | Spain | 1936 |
| Blessed José Bonet Nadal, priest | Spain | 1936 |
| Blessed José Brengaret Puyol, religious | Spain | 1936 |
| Blessed José Ignacio Gordon de la Serna, priest | Spain | 1936 |
| Blessed José María Ormo Seró, religious | Spain | 1936 |
| Blessed Josep Boher Foix, priest | Spain | 1936 |
| Blessed Josep Tápies Sirvant, priest | Spain | 1936 |
| Blessed Josep Joan Perot Juanmartí, priest | Spain | 1936 |
| Blessed Juan Codinach Tuneu, religious | Spain | 1936 |
| Blessed Juan Echarri Vique, religious | Spain | 1936 |
| Blessed Juan Sánchez Munárriz, religious | Spain | 1936 |
| Blessed Julián Rivas Rojano, priest | Spain | 1936 |
| Blessed Manuel Buil Lalueza, religious | Spain | 1936 |
| Blessed Manuel Torras Saís, religious | Spain | 1936 |
| Blessed Marceliano Alonso Santamaría, priest | Spain | 1936 |
| Blessed María de Puiggraciós Badía Flaquer, religious | Spain | 1936 |
| Blessed Mariano Mullerat Soldevila, layperson | Spain | 1936 |
| Blessed Mateo Despons Tena, priest | Spain | 1936 |
| Blessed Modesto de Albocácer (Modesto García Martí), priest | Spain | 1936 |
| Blessed Pascual Araguás Guardia, priest | Spain | 1936 |
| Blessed Pedro García Bernal, religious | Spain | 1936 |
| Blessed Pere Martret Moles, priest | Spain | 1936 |
| Blessed Pere Rofes Llauradó, priest | Spain | 1936 |
| Blessed Ramón Artiga Aragonés, priest | Spain | 1936 |
| Blessed Ramón Novich Rabionet, religious | Spain | 1936 |
| Blessed Reginaldo Hernández Ramírez, priest | Spain | 1936 |
| Blessed Salvador Pigem Serra, religious | Spain | 1936 |
| Blessed Secundino María Ortega García, priest | Spain | 1936 |
| Blessed Silvestre Arnau Pasqüet, priest | Spain | 1936 |
| Blessed Teodoro Ruiz de Larrinaga Gracía, religious | Spain | 1936 |
| Blessed Tomás Capdevila Miró, religious | Spain | 1936 |
| Blessed Jakob Gapp, priest | Germany | 1943 |
| August 14 |
| Saint Eusebio di Roma, priest | Italy | 353 |
| Saint Callisto di Todi, bishop | Italy | 528 |
| Saint Athanasia of Aegina, abbess |  Greece | 860 |
| Blessed Alberto Pandoni, bishop | Italy | 1274 |
| Saint Antonio Primaldo, layperson | Italy | 1480 |
| Saint Domingo Ibáñez de Erquicia Pérez de Lete (ドミンゴ・イバニエス・デ・エルキシア), priest |  Japan | 1633 |
| Saint Franciscus Shōemon (フランシスコ正右衛門), religious | Japan | 1633 |
| Blessed Maria Elisabetta Renzi, religious | Italy | 1859 |
| Blessed Michael Joseph McGivney, priest |  USA | 1890 |
| Blessed Alejo de Terradillos (Basilio González Herrero), religious | Spain | 1936 |
| Blessed Ángel Marina Álvarez, priest | Spain | 1936 |
| Blessed Antonio Luque Jurado, priest | Spain | 1936 |
| Blessed Antonio Trancho Andrés, priest | Spain | 1936 |
| Blessed Antonio María Martín Povea, religious | Spain | 1936 |
| Blessed Arcángel de Valdavida (Ángel de la Red Pérez), priest | Spain | 1936 |
| Blessed Asensio de la Viuda Solla, religious | Spain | 1936 |
| Blessed Berardo de Visantoña (Joaquín Frade Eiras), priest | Spain | 1936 |
| Blessed Donisio Pérez García, religious | Spain | 1936 |
| Blessed Eduardo Sáinz Lantarón, priest | Spain | 1936 |
| Blessed Eusebio de Saludes (Ezequiél Prieto Otero), religious | Spain | 1936 |
| Blessed Félix Yuste Cava, priest | Spain | 1936 |
| Blessed Fernando García de Dios, religious | Spain | 1936 |
| Blessed Francisco Santos Caiderno, religious | Spain | 1936 |
| Blessed Gaietà Clausellas Ballvé, priest | Spain | 1936 |
| Blessed Ildefonso de Armellada (Segundo Pérez Arias), priest | Spain | 1936 |
| Blessed Jocundo Juan José Bonet Mercadé, priest | Spain | 1936 |
| Blessed José García Librán, priest | Spain | 1936 |
| Blessed Juan Agramunt Riera, priest | Spain | 1936 |
| Blessed Luis Suárez Velasco, priest | Spain | 1936 |
| Blessed Manuel Fernández-Herba Pereira, priest | Spain | 1936 |
| Blessed Natalio Camazón Junquera, priest | Spain | 1936 |
| Blessed Ovidio Bravo Porras, religious | Spain | 1936 |
| Blessed Pedro López Delgado, priest | Spain | 1936 |
| Blessed Ricardo Atanes Castro, priest | Spain | 1936 |
| Blessed Sebastián Sáinz López, religious | Spain | 1936 |
| Saint Maximilian Kolbe (Maksymilian Maria Kolbe), priest |  Poland | 1941 |
| August 15 |
| Saint Tarsicio, layperson | Italy | 257 |
| Saint Cassiano di Todi, bishop | Italy | 304 |
| Saint Alfredo (Altfrido), bishop | Germany | 874 |
| Saint Stephen of Hungary (István), layperson |  Hungary | 1038 |
| Saint Arnould de Palmèle, bishop | France | 1087 |
| Saint Hyacinth of Poland (Jacek Odrowąż), priest | Poland | 1257 |
| Saint Roch (Rocco), layperson | Italy | 1376 |
| Blessed Alberto Berdini da Sarteano, priest | Italy | 1450 |
| Blessed Aimone Taparelli, priest | Italy | 1495 |
| Blessed Giuliana Puricelli, religious | Italy | 1501 |
| Saint Stanisław Kostka, religious | Italy | 1568 |
| Blessed Isidore Bakanja, layperson |  Congo-Kinshasa | 1909 |
| Blessed Pio Alberto del Corona, archbishop | Italy | 1912 |
| Saint David Roldán Lara, layperson |  Mexico | 1926 |
| Saint Luis Batis Sáinz, priest | Mexico | 1926 |
| Saint Manuel Morales, layperson | Mexico | 1926 |
| Saint Salvador Lara Puente, layperson | Mexico | 1926 |
| Blessed Agustí Ibarra Anguela, priest | Spain | 1936 |
| Blessed Agustín Viela Ezcurdia, religious | Spain | 1936 |
| Blessed Alejandro de Sobradillo (Juan Francisco Barahona Martín), priest | Spain | 1936 |
| Blessed Alfonso Sorribes Teixidó, religious | Spain | 1936 |
| Blessed Bartolomé Cantador González, layperson | Spain | 1936 |
| Blessed Carmelo Sastre Sastre, priest | Spain | 1936 |
| Blessed Cayetano García Martínez, priest | Spain | 1936 |
| Blessed Clemente Adolfo (Clemente Vea Balaguer), religious | Spain | 1936 |
| Blessed Domingo María de Alboraya (Agustín Hurtado Soler), priest | Spain | 1936 |
| Blessed Eduardo Ripoll Diego, religious | Spain | 1936 |
| Blessed Exuperio (Miguel Alberto Flos), religious | Spain | 1936 |
| Blessed Faustino Pérez García, religious | Spain | 1936 |
| Blessed Francisco Castán Meseguer, religious | Spain | 1936 |
| Blessed Francisco Míguez Fernández, priest | Spain | 1936 |
| Blessed Francisco María Roura Farró, religious | Spain | 1936 |
| Blessed Fructuoso Pérez Márquez, layperson | Spain | 1936 |
| Blessed Isidoro Fernández Rubio, layperson | Spain | 1936 |
| Blessed Isidra Fernández Palomero de Fernández, layperson | Spain | 1936 |
| Blessed José Figuero Beltrán, religious | Spain | 1936 |
| Blessed José Santonja Pinsach, priest | Spain | 1936 |
| Blessed José María Amorós Hernández, religious | Spain | 1936 |
| Blessed José María Badía Mateu, religious | Spain | 1936 |
| Blessed José María Blasco Juan, religious | Spain | 1936 |
| Blessed José María Peris Polo, priest | Spain | 1936 |
| Blessed José María Ros Florensa, religious | Spain | 1936 |
| Blessed Juan Baixeras Berenguer, religious | Spain | 1936 |
| Blessed Juan Mesonero Huerta, priest | Spain | 1936 |
| Blessed Juan Bautista Ceró Cedó, priest | Spain | 1936 |
| Blessed Juan José Vivas-Pérez, layperson | Spain | 1936 |
| Blessed Lui Escalé Binefa, religious | Spain | 1936 |
| Blessed Luis Belda y Soriano de Montoya, layperson | Spain | 1936 |
| Blessed Luis Lladó Teixidó, religious | Spain | 1936 |
| Blessed Luis Masferrer Vila, priest | Spain | 1936 |
| Blessed Luis Alberto (Ildefonso Alberto Flos), religious | Spain | 1936 |
| Blessed Manuel Formigo Giráldez, priest | Spain | 1936 |
| Blessed Manuel Martínez Jarauta, religious | Spain | 1936 |
| Blessed María Sagrario de San Luis Gonzaga (Elvira Moraga Cantarero), religious | Spain | 1936 |
| Blessed Mario (Luis Ros Ezcurra), priest | Spain | 1936 |
| Blessed Miguel Masip González, religious | Spain | 1936 |
| Blessed Pedro Gambín Pérez, priest | Spain | 1936 |
| Blessed Rafael Briega Morales, religious | Spain | 1936 |
| Blessed Ramón Illa Salvía, religious | Spain | 1936 |
| Blessed Sebastián Balcells Tonijuan, religious | Spain | 1936 |
| Blessed Sebastián Riera Coromina, religious | Spain | 1936 |
| Blessed Severino Montes Fernández, priest | Spain | 1936 |
| Blessed Teodoro Martín Camacho, priest | Spain | 1936 |
| Blessed Vicente de San Luis Gonzaga (Vicente Soler y Munárriz), priest | Spain | 1936 |
| Blessed Claudio (Riccardo Granzotto), religious | Italy | 1947 |
| Blessed Armida Barelli, layperson | Italy | 1952 |
| August 16 |
| Saint Ambrogio di Ferentino, layperson | Italy | 304 |
| Blessed Raoul de La Futaie, abbot | France | 1129 |
| Blessed Lorenzo Loricato, layperson | Italy | 1243 |
| Saint Beatriz da Silva y de Menezes, religious | Spain | 1492 |
| Blessed Melchior Kumagai Motonao (メルキョル 熊谷豊前守 元直), layperson | Japan | 1605 |
| Blessed Juan de Santa Marta (Juan / ファン･デ･サンタ･マルタ), priest | Japan | 1618 |
| Blessed Antonius of Saint Francis (アントニオ･デ･サン･フランシスコ), religious | Japan | 1627 |
| Blessed Bartolomé Díaz Laurel (バルトロメ･ラウレル), religious | Japan | 1627 |
| Blessed Caius Akashi Jiemon (カヨ次右衛門), layperson | Japan | 1627 |
| Blessed Francisca Pinzokere (フランシスカ), layperson | Japan | 1627 |
| Blessed Francisco de Santa María (フランシスコ･デ･サンタ･マリア), priest | Japan | 1627 |
| Blessed Franciscus Kuhyōe (フランシスコ九兵衛), layperson | Japan | 1627 |
| Blessed Franciscus (Leo Kurōbyōe Nakamura / レオン九郎兵衛), layperson | Japan | 1627 |
| Blessed Lucas Tsuji Kyūemon (ルカス喜右衛門), layperson | Japan | 1627 |
| Blessed Ludovicus Matsuo Soyemon (ルイス松尾宗右衛門), layperson | Japan | 1627 |
| Blessed Magdalena Kiyota (マグダレナ清田), layperson | Japan | 1627 |
| Blessed Maria (マリア / Maria Vaz), layperson | Japan | 1627 |
| Blessed Michaël Koga Kizayemon (ミゲル喜左衛門), layperson | Japan | 1627 |
| Blessed Thomas Satō Shin’emon (トマス･オウ甚右衛門), layperson | Japan | 1627 |
| Blessed Tsuji Shōbyōe (ガスパル・バス / Gaspar Vaz), layperson | Japan | 1627 |
| Blessed Jean-Baptiste Menestrel, priest | France | 1794 |
| Saint Rosa Fan Hui (范惠．洛莎), layperson | China | 1900 |
| Blessed Petra de San José (Ana Josefa Pérez Florido), religious | Spain | 1906 |
| Blessed Alfonso Sánchez Hernández-Ranera, religious | Spain | 1936 |
| Blessed Amadeo Monge Altés, priest | Spain | 1936 |
| Blessed Anastasio González Rodríguez, religious | Spain | 1936 |
| Blessed Andrés Majadas Málaga, religious | Spain | 1936 |
| Blessed Ángel Hernández-Ranera de Diego, priest | Spain | 1936 |
| Blessed Anselm d’Olot (Laurentí Basil Matas), priest | Spain | 1936 |
| Blessed Antonio Rodrigo Anton, religious | Spain | 1936 |
| Blessed Antonio Rodríguez Blanco, priest | Spain | 1936 |
| Blessed Benigno Prieto del Pozo, priest | Spain | 1936 |
| Blessed Domingo Alonso de Frutos, priest | Spain | 1936 |
| Blessed Enrique de Almazora (Enrique García Beltrán), deacon | Spain | 1936 |
| Blessed Federico Herrera Bermejo, religious | Spain | 1936 |
| Blessed Félix Maroto Moreno, religious | Spain | 1936 |
| Blessed Gabriel María de Benifayó (José María Sanchís Mompó), priest | Spain | 1936 |
| Blessed Gregorio Zugasti Fernández de Esquide, religious | Spain | 1936 |
| Blessed José Álvarez Rodríguez, religious | Spain | 1936 |
| Blessed José de Vega Pedraza, religious | Spain | 1936 |
| Blessed José Reñé Prenafeta, priest | Spain | 1936 |
| Blessed Juan Navas Rodríguez-Carretero, priest | Spain | 1936 |
| Blessed Juan José Orellana del Moral, priest | Spain | 1936 |
| Blessed Julián Navío Colado, priest | Spain | 1936 |
| Blessed Marcelino Ovejero Gómez, religious | Spain | 1936 |
| Blessed Martín Lozano Tello, priest | Spain | 1936 |
| Blessed Nicesio Pérez del Palomar Quincoces, religious | Spain | 1936 |
| Blessed Ramón Tejado Librado, religious | Spain | 1936 |
| Blessed Santiago Mate Calzada, religious | Spain | 1936 |
| Blessed Saturnino Río Rojo, religious | Spain | 1936 |
| Blessed Valentín Díez Serna, religious | Spain | 1936 |
| Blessed Vicente Majadas Málaga, religious | Spain | 1936 |
| Blessed Víctor Chumillas Fernández, priest | Spain | 1936 |
| August 17 |
| Saint Eusebius, pope | Italy | 309 |
| Saint Éon d’Arles, archbishop | France | 502 |
| Saint Anastasio di Narni, bishop | Italy | 653 |
| Saint Magne d’Avignon, bishop | France | 660 |
| Saint Jeroen van Noordwijk, priest |  Netherlands | 856 |
| Saint Nicolò Politi, religious | Italy | 1167 |
| Blessed Alberto da Chiatina, priest | Italy | 1202 |
| Saint Chiara della Croce da Montefalco, abbess | Italy | 1308 |
| Blessed Angiolo Agostino Mazzinghi, priest | Italy | 1438 |
| Blessed Iacobus Bunzō (サンチァゴ・同息子), layperson | Japan | 1620 |
| Blessed Magdalena (マグダレナ), layperson | Japan | 1620 |
| Blessed Maria (マリア), layperson | Japan | 1620 |
| Blessed Simon Kiyota Bokusai (シモン清田木斎), layperson | Japan | 1620 |
| Blessed Thomas Gengorō (トマス源五郎), layperson | Japan | 1620 |
| Saint Iacobus Tomonaga Gorōbyōe (ハコボ・デ・サンタ・マリア朝長五郎兵衛), priest | Japan | 1633 |
| Saint Michaël Kurōbyōe (ミゲル・久郎兵衛), layperson | Japan | 1633 |
| Saint Jeanne de la Croix (Jeanne Delanoue), religious | France | 1736 |
| Blessed Noël-Hilaire le Conte, priest | France | 1794 |
| Blessed Leopoldina Naudet, religious | Italy | 1834 |
| Blessed Marie-Élisabeth (Élisabeth Turgeon), religious |  Canada | 1881 |
| Blessed Agustín Fernández Vázquez, layperson | Spain | 1936 |
| Blessed Alfonso López Morales, priest | Spain | 1936 |
| Blessed Aniceto Lizasoain Lizaso, religious | Spain | 1936 |
| Blessed Antonio Carmaniú y Mercader, priest | Spain | 1936 |
| Blessed Aurelio de Ocejo (Facundo Escanciano Tejerina), religious | Spain | 1936 |
| Blessed Baltasar Del Charco Horques, religious | Spain | 1936 |
| Blessed Diego Balmaseda López, priest | Spain | 1936 |
| Blessed Enrique Canadell Quintana, priest | Spain | 1936 |
| Blessed Estanislao de Jesús Peña Ojea, religious | Spain | 1936 |
| Blessed Florencio López Egea, priest | Spain | 1936 |
| Blessed Gumersindo Sanz Sanz, religious | Spain | 1936 |
| Blessed Honorio Ballesteros Rodríguez, religious | Spain | 1936 |
| Blessed Joan Prats Gibert, priest | Spain | 1936 |
| Blessed José María de Manila (Eugenio Sanz-Orozco Mortera), priest | Spain | 1936 |
| Blessed Josep Mañé March, priest | Spain | 1936 |
| Blessed Josep Puigdessens Pujol, priest | Spain | 1936 |
| Blessed Julio Aramendía Urquía, priest | Spain | 1936 |
| Blessed Magín Isidro Roque Civit Roda, priest | Spain | 1936 |
| Blessed Miquel Rué Gené, priest | Spain | 1936 |
| Blessed Raimundo García Moreno, religious | Spain | 1936 |
| Blessed Ramón Cervilla Luis, priest | Spain | 1936 |
| Blessed Salustiano Alonso Antonio, religious | Spain | 1936 |
| Blessed Segundo Pastor García, religious | Spain | 1936 |
| Blessed Silvestre Pérez Laguna, priest | Spain | 1936 |
| August 18 |
| Saint Anastasio, layperson | Italy | 274 |
| Saint Fiacre, religious | France | 670 |
| Saint Macarius of Pelekete, religious |  Turkiye | 840 |
| Blessed Leonardo, abbot | Italy | 1255 |
| Blessed Rinaldo da Concorezzo, archbishop | Italy | 1321 |
| Blessed Antoine Bannassat, priest | France | 1794 |
| Blessed Abilio Sáiz López, religious | Spain | 1936 |
| Blessed Adalberto María (Adalberto Vicente y Vicente), religious | Spain | 1936 |
| Blessed Alejandro Juan (Fermín Gellida Cornelles), religious | Spain | 1936 |
| Blessed Ángel María (Angelo Reguilón Lobato), religious | Spain | 1936 |
| Blessed Ángel María (José Sánchez Rodríguez), religious | Spain | 1936 |
| Blessed Antoni Junyent Estruch, priest | Spain | 1936 |
| Blessed Antonio Zurita Mestanza, layperson | Spain | 1936 |
| Blessed Antonio Perfecto Fernández Aparicio, priest | Spain | 1936 |
| Blessed Atanasio Viadaurreta Labra, religious | Spain | 1936 |
| Blessed Aurelio María (Aurelio García Anton), religious | Spain | 1936 |
| Blessed Bartolomé Fanti María (Nicomedes Andrés Vecilla), religious | Spain | 1936 |
| Blessed Celestino José Alonso Villar, priest | Spain | 1936 |
| Blessed Daniel María (Daniel García Antón), religious | Spain | 1936 |
| Blessed Eliseo María Camargo Montes, religious | Spain | 1936 |
| Blessed Francisco Arias Martín, priest | Spain | 1936 |
| Blessed Francisco María (Francisco Pérez y Pérez), religious | Spain | 1936 |
| Blessed Gregorio Díez Pérez, priest | Spain | 1936 |
| Blessed Honorato Alfredo (Agustín Pedro Calvo), religious | Spain | 1936 |
| Blessed Jacob Samuel (José Enrique Chamayou Oulés), religious | Spain | 1936 |
| Blessed Jaime Bonet Nadal, priest | Spain | 1936 |
| Blessed Jaime Falgarona Vilanova, religious | Spain | 1936 |
| Blessed José María Ruiz Cardeñosa, religious | Spain | 1936 |
| Blessed Liberio González Nombela, priest | Spain | 1936 |
| Blessed María del Rosario Ciércoles y Gascón, religious | Spain | 1936 |
| Blessed María Luisa Bermúdez Ruiz, religious | Spain | 1936 |
| Blessed Martín Martínez Pascual, priest | Spain | 1936 |
| Blessed Micaela Hernán Martínez, religious | Spain | 1936 |
| Blessed Olegario Ángel (Eudaldo Rodas Mas), religious | Spain | 1936 |
| Blessed Rafael José (Patricio Gellida Llorach), religious | Spain | 1936 |
| Blessed Santiago Franco Mayo, priest | Spain | 1936 |
| Blessed Silvano María (Silvano Villanueva González), religious | Spain | 1936 |
| Blessed Vicente María Izquierdo Alcón, priest | Spain | 1936 |
| Saint Alberto Hurtado, priest |  Chile | 1952 |
| August 19 |
| Saint Magno di Trani, bishop | Italy | 251 |
| Saint Sixtus III, pope | Italy | 440 |
| Saint Bertulfo, abbot | Italy | 639 |
| Saint Bartolomeo da Simeri, abbot | Italy | 1130 |
| Blessed Guerric d’Igny, abbot | France | 1157 |
| Blessed Leone, abbot | Italy | 1295 |
| Saint Louis d’Anjou, bishop | France | 1297 |
| Blessed Giordano da Pisa, priest | Italy | 1311 |
| Blessed Angelo di Acquapagana, religious | Italy | 1313 |
| Blessed Christopher Robinson, priest | England | 1598 |
| Blessed Damianus (ダミアン), layperson | Japan | 1605 |
| Blessed Antonius Yamada (アントニオ浜田), layperson | Japan | 1622 |
| Blessed Bartholomaeus Mohyōe (バルトロメ茂兵衛), layperson | Japan | 1622 |
| Blessed Iacobus Matsuo Denji (サンチアゴ松尾でんし), layperson | Japan | 1622 |
| Blessed Ioachim Díaz Hirayama (ホアキム・ディアス平山常陳), layperson | Japan | 1622 |
| Blessed Ioannes Miyazaki Soemon (フアン宮崎宗右衛門), layperson | Japan | 1622 |
| Blessed Ioannes Nagata Matashichi (フアン永田又吉), layperson | Japan | 1622 |
| Blessed Ioannes Yagō (ファンやご庄衛門), layperson | Japan | 1622 |
| Blessed Laurentius Ikegami Rokusuke (ロレンソ六右衛門), layperson | Japan | 1622 |
| Blessed Leo Sukeemon (レオン助右衛門), layperson | Japan | 1622 |
| Blessed Luis Flores (ルイス・フロレス), priest | Japan | 1622 |
| Blessed Marcus Takenoshita Shin’emon (マルコス竹之島新右衛門), layperson | Japan | 1622 |
| Blessed Michaël Díaz Hori (ミゲル・ディアス), layperson | Japan | 1622 |
| Blessed Paulus Sankichi (パブロ三吉), layperson | Japan | 1622 |
| Blessed Pedro Manrique de Zúñiga y Velasco (ペドロ・デ・ズニガ), priest | Japan | 1622 |
| Blessed Thomas Koyanagi (トマス小柳), layperson | Japan | 1622 |
| Blessed Hugh Green (Ferdinand Brooke), priest | England | 1642 |
| Saint John Eudes (Jean Eudes), priest | France | 1680 |
| Saint Ezequiel Moreno y Díaz, bishop |  Colombia | 1906 |
| Blessed Agapito León (Remigio Ángel Olalla Aldea), religious | Spain | 1936 |
| Blessed Águeda de Nuestra Señora de las Virtudes (Agueda Hernández Amorós), religious | Spain | 1936 |
| Blessed Ambrosio María (Agustí Busquets Creixell), priest | Spain | 1936 |
| Blessed Andrés Sergio (Andrés Pradas Lahoz), religious | Spain | 1936 |
| Blessed Antoni Pedró Minguella, priest | Spain | 1936 |
| Blessed Benigne de Canet de Mar (Miquel Sagré Fornaguera), priest | Spain | 1936 |
| Blessed Dámaso Luis (Antolín Martínez Martínez), religious | Spain | 1936 |
| Blessed Damián Gómez Jiménez, priest | Spain | 1936 |
| Blessed Domingo (Cipriano González Millán), priest | Spain | 1936 |
| Blessed Elvira de la Natividad de Nuestra Señora (Elvira Torrentallé Paraire), religious | Spain | 1936 |
| Blessed Emiliano María (Ignasi Guilà Ximenes), religious | Spain | 1936 |
| Blessed Eugenio María (José Erausquin Aramburu), religious | Spain | 1936 |
| Blessed Félix González Bustos, priest | Spain | 1936 |
| Blessed Francisca de Santa Teresa (Francisca de Amezua Ibaibarriaga), religious | Spain | 1936 |
| Blessed Francisco de Paula Ibáñez y Ibáñez, priest | Spain | 1936 |
| Blessed Gregorio Martos Muñoz, priest | Spain | 1936 |
| Blessed Josafat Roque (Urbano Corral González), religious | Spain | 1936 |
| Blessed José María Fontseré Masdéu, priest | Spain | 1936 |
| Blessed Juan Cano Gómez, priest | Spain | 1936 |
| Blessed Juan Roca Boch, priest | Spain | 1936 |
| Blessed Julio Alfonso (Valeriano Ruíz Peral), religious | Spain | 1936 |
| Blessed Justo Arévalo y Mora, priest | Spain | 1936 |
| Blessed Ladislao Luis (Isidro Muñoz Antolín), religious | Spain | 1936 |
| Blessed Marciano Pascual (Pascual Escuin Ferrer), religious | Spain | 1936 |
| Blessed María de las Nieves de la Santísima Trinidad (María de las Nieves Crespo López), religious | Spain | 1936 |
| Blessed María de Nuestra Señora de la Providencia (María Calaf Miracle), religious | Spain | 1936 |
| Blessed María Desamparados del Santísimo Sacramento (María Desamparados Giner Sixta), religious | Spain | 1936 |
| Blessed María Dolores de San Francisco Javier (María Dolores Vidal Cervera), religious | Spain | 1936 |
| Blessed Narciso de Esténaga y Echevarría, bishop | Spain | 1936 |
| Blessed Pedro Buitrago Morales, priest | Spain | 1936 |
| Blessed Plácido María (Càndid Feliu Soler), priest | Spain | 1936 |
| Blessed Rosa de Nuestra Señora del Buen Consejo (Rosa Pedret Rull), religious | Spain | 1936 |
| Blessed Santiago Calero Redondo, priest | Spain | 1936 |
| Blessed Tarsici de Miralcamp (Josep Vilalta Saumell), priest | Spain | 1936 |
| Blessed Teresa de la Divina Pastora (Teresa Chambó y Palet), religious | Spain | 1936 |
| Blessed Tomás Sitjar Fortiá, priest | Spain | 1936 |
| August 20 |
| Saint Oswine of Deira, layperson | England | 651 |
| Saint Philibert de Noirmoutier, abbot | France | 684 |
| Saint Cristóforo de Córdoba, religious | Spain | 852 |
| Saint Leovigildo de Córdoba, priest | Spain | 852 |
| Blessed Burchard Burchard, archbishop | France | 1029 |
| Saint Bernard of Clairvaux (Bernard de Fontaine), priest | France | 1153 |
| Saint Rognvald Kale Kolsson (Ragnvald Orknøyjarl), layperson |  Scotland | 1158 |
| Saint Benedetto (Manetto dell’Antella), priest | Italy | 1268 |
| Saint Bernardo Tolomei, abbot | Italy | 1348 |
| Blessed Gervais-Protais Brunel, priest | France | 1794 |
| Blessed Louis-François Lebrun, priest | France | 1794 |
| Saint Maria De Mattias, religious | Italy | 1866 |
| Saint Pius X, pope | Italy | 1914 |
| Blessed Blanca de Lucía Ortiz de Velasco, layperson | Spain | 1936 |
| Blessed Celestino Antonio (Ismael Barrio Marquilla), religious | Spain | 1936 |
| Blessed Cristóbal Baqués Almirall, priest | Spain | 1936 |
| Blessed Emili Bover Albareda, priest | Spain | 1936 |
| Blessed Enrique Rodríguez Tortosa, layperson | Spain | 1936 |
| Blessed Francisco Barbancho González, priest | Spain | 1936 |
| Blessed Francisco Llagostera Bonet, priest | Spain | 1936 |
| Blessed Francisco de la Asunción (Francesc Segalà Solé), priest | Spain | 1936 |
| Blessed José Camacho Moreno, priest | Spain | 1936 |
| Blessed José Tapia Díaz, layperson | Spain | 1936 |
| Blessed Lorenzo de Medina García, priest | Spain | 1936 |
| Blessed Magín Albaigés Escoda, priest | Spain | 1936 |
| Blessed Manuel López Álvarez, priest | Spain | 1936 |
| Blessed María Climent Mateu, layperson | Spain | 1936 |
| Blessed Pablo Segalá Solé, priest | Spain | 1936 |
| Blessed Rafael Cubero Martín, layperson | Spain | 1936 |
| Blessed Serapio Sanz Iranzo, religious | Spain | 1936 |
| Blessed Silverio de San Luis Gonzaga (Jaume Perucho Fontarro), priest | Spain | 1936 |
| Blessed Tomás Campo Marín, priest | Spain | 1936 |
| Blessed Georg Häfner, priest | Germany | 1942 |
| Blessed Władysław Mączkowski, priest | Germany | 1942 |
| Blessed Teofilo Matulionis, archbishop |  Lithuania | 1962 |
